Merge pull request #263 from martinlindhe/linting

Add linting
Don't shadow err
2026-02-08 22:16:38 +00:00 · 2019-01-27 21:28:50 +01:00 · 2019-01-23 10:02:13 +01:00 · 2019-01-23 10:01:31 +01:00 · 2019-01-23 10:01:31 +01:00 · 2019-01-23 10:00:52 +01:00
75 changed files with 6766 additions and 1098 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 VERSION
 *.swp
 *.un~
+output/
--- a/.promu.yml
+++ b/.promu.yml
@@ -12,3 +12,7 @@ build:
 tarball:
    files:
        - LICENSE
+crossbuild:
+    platforms:
+        - windows/amd64
+        - windows/386
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -2,124 +2,174 @@


 [[projects]]
+  digest = "1:3ccf8ba7afe02fd470c4f07d6eea4d0e6875da3d129f95b925f2003ce5dd2024"
  name = "github.com/StackExchange/wmi"
  packages = ["."]
+  pruneopts = "NUT"
  revision = "5d049714c4a64225c3c79a7cf7d02f7fb5b96338"
  version = "1.0.0"

 [[projects]]
  branch = "master"
+  digest = "1:f3793f8a708522400cef1dba23385e901aede5519f68971fd69938ef330b07a1"
  name = "github.com/alecthomas/template"
  packages = [
    ".",
-    "parse"
+    "parse",
  ]
+  pruneopts = "NUT"
  revision = "a0175ee3bccc567396460bf5acd36800cb10c49c"

 [[projects]]
  branch = "master"
+  digest = "1:fdd419e104ec26bb5bd63cc62637c640453ed2929a7453f3afadbd9a0223da66"
  name = "github.com/alecthomas/units"
  packages = ["."]
+  pruneopts = "NUT"
  revision = "2efee857e7cfd4f3d0138cc3cbb1b4966962b93a"

 [[projects]]
  branch = "master"
+  digest = "1:cb0535f5823b47df7dcb9768ebb6c000b79ad115472910c70efe93c9ed9b2315"
  name = "github.com/beorn7/perks"
  packages = ["quantile"]
+  pruneopts = "NUT"
  revision = "4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9"

 [[projects]]
+  digest = "1:f9adc21a937e5da643ea14a3488cb7506788876737a5e205394e508627a6eec8"
+  name = "github.com/dimchansky/utfbom"
+  packages = ["."]
+  pruneopts = "NUT"
+  revision = "d2133a1ce379ef6fa992b0514a77146c60db9d1c"
+  version = "v1.1.0"
+
+[[projects]]
+  digest = "1:cb4e216bd9f58866f42dc65893455b24f879b026fdaa1ecc3aafff625fdb5a66"
  name = "github.com/go-ole/go-ole"
  packages = [
    ".",
-    "oleutil"
+    "oleutil",
  ]
+  pruneopts = "NUT"
  revision = "a41e3c4b706f6ae8dfbff342b06e40fa4d2d0506"
  version = "v1.2.1"

 [[projects]]
+  digest = "1:9f35c1344b56e5868d511d231f215edd0650aa572664f856444affdd256e43e4"
  name = "github.com/golang/protobuf"
  packages = ["proto"]
+  pruneopts = "NUT"
  revision = "925541529c1fa6821df4e44ce2723319eb2be768"
  version = "v1.0.0"

 [[projects]]
+  digest = "1:5985ef4caf91ece5d54817c11ea25f182697534f8ae6521eadcd628c142ac4b6"
  name = "github.com/matttproud/golang_protobuf_extensions"
  packages = ["pbutil"]
+  pruneopts = "NUT"
  revision = "3247c84500bff8d9fb6d579d800f20b3e091582c"
  version = "v1.0.0"

 [[projects]]
+  digest = "1:03bca087b180bf24c4f9060775f137775550a0834e18f0bca0520a868679dbd7"
  name = "github.com/prometheus/client_golang"
  packages = [
    "prometheus",
-    "prometheus/promhttp"
+    "prometheus/promhttp",
  ]
+  pruneopts = "NUT"
  revision = "c5b7fccd204277076155f10851dad72b76a49317"
  version = "v0.8.0"

 [[projects]]
  branch = "master"
+  digest = "1:32d10bdfa8f09ecf13598324dba86ab891f11db3c538b6a34d1c3b5b99d7c36b"
  name = "github.com/prometheus/client_model"
  packages = ["go"]
+  pruneopts = "NUT"
  revision = "99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c"

 [[projects]]
  branch = "master"
+  digest = "1:ce98e83b2b9486b6a9ce5e44fd4097c64e8f2f0eaa6c5041a8f12d3aaa5c17b3"
  name = "github.com/prometheus/common"
  packages = [
    "expfmt",
    "internal/bitbucket.org/ww/goautoneg",
    "log",
    "model",
-    "version"
+    "version",
  ]
+  pruneopts = "NUT"
  revision = "e4aa40a9169a88835b849a6efb71e05dc04b88f0"

 [[projects]]
  branch = "master"
+  digest = "1:61a95e8d3e39e94207fba1b56d3c2182a356a1e41017aa647f523ae964b6bb0c"
  name = "github.com/prometheus/procfs"
  packages = [
    ".",
    "internal/util",
    "nfs",
-    "xfs"
+    "xfs",
  ]
+  pruneopts = "NUT"
  revision = "54d17b57dd7d4a3aa092476596b3f8a933bde349"

 [[projects]]
+  digest = "1:6989062eb7ccf25cf38bf4fe3dba097ee209f896cda42cefdca3927047bef7b6"
  name = "github.com/sirupsen/logrus"
  packages = ["."]
+  pruneopts = "NUT"
  revision = "c155da19408a8799da419ed3eeb0cb5db0ad5dbc"
  version = "v1.0.5"

 [[projects]]
  branch = "master"
+  digest = "1:3f3a05ae0b95893d90b9b3b5afdb79a9b3d96e4e36e099d841ae602e4aca0da8"
  name = "golang.org/x/crypto"
  packages = ["ssh/terminal"]
+  pruneopts = "NUT"
  revision = "182114d582623c1caa54f73de9c7224e23a48487"

 [[projects]]
  branch = "master"
+  digest = "1:ea69008276e11262595a1f9a279ffd51d93e21c32c13b0f81856e962c6f607dd"
  name = "golang.org/x/sys"
  packages = [
    "unix",
    "windows",
    "windows/registry",
    "windows/svc",
-    "windows/svc/eventlog"
+    "windows/svc/eventlog",
  ]
+  pruneopts = "NUT"
  revision = "8c0ece68c28377f4c326d85b94f8df0dace46f80"

 [[projects]]
+  digest = "1:22b2dee6f30bc8601f087449a2a819df8388e54e9547349c658f14d8f8c590f2"
  name = "gopkg.in/alecthomas/kingpin.v2"
  packages = ["."]
+  pruneopts = "NUT"
  revision = "947dcec5ba9c011838740e680966fd7087a71d0d"
  version = "v2.2.6"

 [solve-meta]
  analyzer-name = "dep"
  analyzer-version = 1
-  inputs-digest = "01d9c528210a99a08cc65af3a40d23a31df0c00193639751917ea1adb7d1ee1c"
+  input-imports = [
+    "github.com/StackExchange/wmi",
+    "github.com/dimchansky/utfbom",
+    "github.com/prometheus/client_golang/prometheus",
+    "github.com/prometheus/client_golang/prometheus/promhttp",
+    "github.com/prometheus/client_model/go",
+    "github.com/prometheus/common/expfmt",
+    "github.com/prometheus/common/log",
+    "github.com/prometheus/common/version",
+    "golang.org/x/sys/windows/registry",
+    "golang.org/x/sys/windows/svc",
+    "gopkg.in/alecthomas/kingpin.v2",
+  ]
  solver-name = "gps-cdcl"
  solver-version = 1
--- a/18
+++ b/18
@@ -1,5 +1,19 @@
-fmt:
-	gofmt -l -w -s .
+export GOOS=windows

 build:
 	promu build -v
+
+test:
+	go test -v ./...
+
+lint:
+	gometalinter --vendor --config gometalinter.config ./...
+
+fmt:
+	gofmt -l -w -s .
+
+crossbuild:
+	# The prometheus/golang-builder image for promu crossbuild doesn't exist
+	# on Windows, so for now, we'll just build twice
+	GOARCH=amd64 promu build --prefix=output/amd64
+	GOARCH=386   promu build --prefix=output/386
--- a/README.md
+++ b/README.md
@@ -9,24 +9,34 @@ Prometheus exporter for Windows machines, using the WMI (Windows Management Inst

 Name     | Description | Enabled by default
 ---------|-------------|--------------------
-ad | [Win32_PerfRawData_DirectoryServices_DirectoryServices](https://msdn.microsoft.com/en-us/library/ms803980.aspx) Active Directory | 
-cpu | [Win32_PerfRawData_PerfOS_Processor](https://msdn.microsoft.com/en-us/library/aa394317(v=vs.90).aspx) metrics (cpu usage) | &#10003;
-cs | [Win32_ComputerSystem](https://msdn.microsoft.com/en-us/library/aa394102) metrics (system properties, num cpus/total memory) | &#10003;
-dns | [Win32_PerfRawData_DNS_DNS](https://technet.microsoft.com/en-us/library/cc977686.aspx) metrics (DNS Server) |
-hyperv | Performance counters for Hyper-V hosts | 
-iis | [Win32_PerfRawData_W3SVC_WebService](https://msdn.microsoft.com/en-us/library/aa394345) IIS metrics |
-logical_disk | [Win32_PerfRawData_PerfDisk_LogicalDisk](https://msdn.microsoft.com/en-us/windows/hardware/aa394307(v=vs.71)) metrics (disk I/O) | &#10003;
-net | [Win32_PerfRawData_Tcpip_NetworkInterface](https://technet.microsoft.com/en-us/security/aa394340(v=vs.80)) metrics (network interface I/O) | &#10003;
-msmq | [Win32_PerfRawData_MSMQ_MSMQQueue](http://wutils.com/wmi/root/cimv2/win32_perfrawdata_msmq_msmqqueue/) metrics (MSMQ/journal count) | 
-os | [Win32_OperatingSystem](https://msdn.microsoft.com/en-us/library/aa394239) metrics (memory, processes, users) | &#10003;
-process | [Win32_PerfRawData_PerfProc_Process](https://msdn.microsoft.com/en-us/library/aa394323(v=vs.85).aspx) metrics (per-process stats) |
-service | [Win32_Service](https://msdn.microsoft.com/en-us/library/aa394418(v=vs.85).aspx) metrics (service states) | &#10003;
-system | Win32_PerfRawData_PerfOS_System metrics (system calls) | &#10003;
-tcp | [Win32_PerfRawData_Tcpip_TCPv4](https://msdn.microsoft.com/en-us/library/aa394341(v=vs.85).aspx) metrics (tcp connections) |
-textfile | Read prometheus metrics from a text file | &#10003;
-vmware | Performance counters installed by the Vmware Guest agent |
+[ad](docs/collector.ad.md) | Active Directory Domain Services |
+[cpu](docs/collector.cpu.md) | CPU usage | &#10003;
+[cs](docs/collector.cs.md) | "Computer System" metrics (system properties, num cpus/total memory) | &#10003;
+[dns](docs/collector.dns.md) | DNS Server |
+[hyperv](docs/collector.hyperv.md) | Hyper-V hosts |
+[iis](docs/collector.iis.md) | IIS sites and applications |
+[logical_disk](docs/collector.logical_disk.md) | Logical disks, disk I/O | &#10003;
+[memory](docs/collector.memory.md) | Memory usage metrics |
+[msmq](docs/collector.msmq.md) | MSMQ queues |
+[mssql](docs/collector.mssql.md) | [SQL Server Performance Objects](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/use-sql-server-objects#SQLServerPOs) metrics  |
+[netframework_clrexceptions](docs/collector.netframework_clrexceptions.md) | .NET Framework CLR Exceptions |
+[netframework_clrinterop](docs/collector.netframework_clrinterop.md) | .NET Framework Interop Metrics |
+[netframework_clrjit](docs/collector.netframework_clrjit.md) | .NET Framework JIT metrics |
+[netframework_clrloading](docs/collector.netframework_clrloading.md) | .NET Framework CLR Loading metrics |
+[netframework_clrlocksandthreads](docs/collector.netframework_clrlocksandthreads.md) | .NET Framework locks and metrics threads |
+[netframework_clrmemory](docs/collector.netframework_clrmemory.md) |  .NET Framework Memory metrics |
+[netframework_clrremoting](docs/collector.netframework_clrremoting.md) | .NET Framework Remoting metrics |
+[netframework_clrsecurity](docs/collector.netframework_clrsecurity.md) | .NET Framework Security Check metrics |
+[net](docs/collector.net.md) | Network interface I/O | &#10003;
+[os](docs/collector.os.md) | OS metrics (memory, processes, users) | &#10003;
+[process](docs/collector.process.md) | Per-process metrics |
+[service](docs/collector.service.md) | Service state metrics | &#10003;
+[system](docs/collector.system.md) | System calls | &#10003;
+[tcp](docs/collector.tcp.md) | TCP connections |
+[textfile](docs/collector.textfile.md) | Read prometheus metrics from a text file | &#10003;
+[vmware](docs/collector.vmware.md) | Performance counters installed by the Vmware Guest agent |

-The HELP texts shows the WMI data source, please see MSDN documentation for details.
+See the linked documentation on each collector for more information on reported metrics, configuration settings and usage examples.

 ## Installation
 The latest release can be downloaded from the [releases page](https://github.com/martinlindhe/wmi_exporter/releases).
@@ -42,13 +52,19 @@ Name | Description
 `LISTEN_PORT` | The port to bind to. Defaults to 9182.
 `METRICS_PATH` | The path at which to serve metrics. Defaults to `/metrics`
 `TEXTFILE_DIR` | As the `--collector.textfile.directory` flag, provide a directory to read text files with metrics from
+`EXTRA_FLAGS` | Allows passing full CLI flags. Defaults to an empty string.

-Parameters are sent to the installer via `msiexec`. Example invocation:
+Parameters are sent to the installer via `msiexec`. Example invocations:

 ```powershell
 msiexec /i <path-to-msi-file> ENABLED_COLLECTORS=os,iis LISTEN_PORT=5000
 ```

+Example service collector with a custom query.
+```powershell
+msiexec /i <path-to-msi-file> ENABLED_COLLECTORS=os,service --% EXTRA_FLAGS="--collector.service.services-where ""Name LIKE 'sql%'"""
+```
+
 ## Roadmap

 See [open issues](https://github.com/martinlindhe/wmi_exporter/issues)
@@ -75,7 +91,10 @@ The prometheus metrics will be exposed on [localhost:9182](http://localhost:9182

    .\wmi_exporter.exe --collectors.enabled "process" --collector.process.processes-where "Name LIKE 'firefox%'"

-When there are multiple processes with the same name, WMI represents those after the first instance as `process-name#index`. So to get them all, rather than just the first one, the query needs to be a wildcard search.
+When there are multiple processes with the same name, WMI represents those after the first instance as `process-name#index`. So to get them all, rather than just the first one, the query needs to be a wildcard search using a `%` character.
+
+Please note that in Windows batch scripts (and when using the `cmd` command prompt), the `%` character is reserved, so it has to be escaped with another `%`. For example, the wildcard syntax for searching for all firefox processes is `firefox%%`.
+

 ## License

--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,51 +1,64 @@
-version: "{build}"
-
-os: Windows Server 2012 R2
-
-environment:
-  GOPATH: c:\gopath
-  matrix:
-    - MSI_ARCH: amd64
-      GOARCH: amd64
-    - MSI_ARCH: 386
-      GOARCH: 386
-
-clone_folder: c:\gopath\src\github.com\martinlindhe\wmi_exporter
-
-install:
-  - go version
-  - set PATH=%GOPATH%\bin;c:\go\bin;%GOPATH%\bin\windows_%GOARCH%;%PATH%
-  - go get -u github.com/prometheus/promu
-  - choco install gitversion.portable -y
-
-build_script:
-  - ps: gitversion /output json /showvariable FullSemVer | Set-Content VERSION -PassThru
-  - go test -v ./...
-  - promu build -v
-  - ps: |
-      $ErrorActionPreference = "Stop"
-      if($env:APPVEYOR_REPO_TAG -eq "True") {
-        # The MSI version is not semver compliant, so just take the numerical parts
-        $Version = $env:APPVEYOR_REPO_TAG_NAME -replace '^v?([0-9\.]+).*$','$1'
-        Write-Verbose "Setting msi version to $Version"
-        .\installer\build.ps1 -PathToExecutable .\wmi_exporter.exe -Version $Version -Arch "$env:MSI_ARCH"
-        Push-AppveyorArtifact installer\Output\wmi_exporter-$Version-$env:MSI_ARCH.msi -DeploymentName Installer
-      }
-
-after_build:
-  - 7z a wmi_exporter-%MSI_ARCH%.zip wmi_exporter.exe
-
-artifacts:
-  - name: Executable
-    path: 'wmi_exporter-*.zip'
-
-deploy:
-  - provider: GitHub
-    description: WMI Exporter version $(appveyor_build_version)
-    artifact: Executable,Installer
-    auth_token:
-      secure: 'CrXWeTf7qONUOEki5olFfGEUPMLDeHj61koDXV3OVEaLgtACmnVHsKUub9POflda'
-    draft: false
-    prerelease: false
-    on:
-      appveyor_repo_tag: true
+version: "{build}"
+
+os: Visual Studio 2017
+build: off
+stack: go 1.10
+
+environment:
+  GOPATH: c:\gopath
+
+clone_folder: c:\gopath\src\github.com\martinlindhe\wmi_exporter
+
+install:
+  - set PATH=%GOPATH%\bin;%PATH%
+  - go get -u github.com/prometheus/promu
+  - go get -u github.com/alecthomas/gometalinter && gometalinter --install
+  - choco install gitversion.portable make -y
+
+test_script:
+  - make test
+
+after_test:
+  - make lint
+
+build_script:
+  - ps: |
+      $ErrorActionPreference = "Stop"
+      gitversion /output json /showvariable FullSemVer | Set-Content VERSION -PassThru
+      $Version = Get-Content VERSION
+      make crossbuild
+      # GH requires all files to have different names, so add version/arch to differentiate
+      foreach($Arch in "amd64","386") {
+        Rename-Item output\$Arch\wmi_exporter.exe -NewName wmi_exporter-$Version-$Arch.exe
+      }
+
+after_build:
+  - ps: |
+      # Build installer packages only on tagged releases
+      if($env:APPVEYOR_REPO_TAG -ne "True") {
+        return
+      }
+      $ErrorActionPreference = "Stop"
+      # The MSI version is not semver compliant, so just take the numerical parts
+      $Version = $env:APPVEYOR_REPO_TAG_NAME -replace '^v?([0-9\.]+).*$','$1'
+      foreach($Arch in "amd64","386") {
+        Write-Verbose "Building wmi_exporter $Version msi for $Arch"
+        .\installer\build.ps1 -PathToExecutable .\output\$Arch\wmi_exporter-$Version-$Arch.exe -Version $Version -Arch "$Arch"
+        Move-Item installer\Output\wmi_exporter-$Version-$Arch.msi output\$Arch\
+      }
+  - promu checksum output\
+
+artifacts:
+  - name: Artifacts
+    path: output\**\*
+
+deploy:
+  - provider: GitHub
+    description: WMI Exporter version $(appveyor_build_version)
+    artifact: Artifacts
+    auth_token:
+      secure: 'CrXWeTf7qONUOEki5olFfGEUPMLDeHj61koDXV3OVEaLgtACmnVHsKUub9POflda'
+    draft: false
+    prerelease: false
+    on:
+      appveyor_repo_tag: true
--- a/collector/ad.go
+++ b/collector/ad.go
@@ -1,8 +1,10 @@
-// returns data points from Win32_PerfRawData_DirectoryServices_DirectoryServices
-// Partial docs: https://msdn.microsoft.com/en-us/library/ms803980.aspx
+// +build windows
+
 package collector

 import (
+	"errors"
+
 	"github.com/StackExchange/wmi"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/log"
@@ -460,6 +462,8 @@ func (c *ADCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_PerfRawData_DirectoryServices_DirectoryServices docs:
+// - https://msdn.microsoft.com/en-us/library/ms803980.aspx
 type Win32_PerfRawData_DirectoryServices_DirectoryServices struct {
 	Name string

@@ -483,8 +487,8 @@ type Win32_PerfRawData_DirectoryServices_DirectoryServices struct {
 	DatabasemodifysPersec                                            uint32
 	DatabaserecyclesPersec                                           uint32
 	DigestBindsPersec                                                uint32
-	DRAHighestUSNCommittedHighpart                                   uint32
-	DRAHighestUSNCommittedLowpart                                    uint32
+	DRAHighestUSNCommittedHighpart                                   uint64
+	DRAHighestUSNCommittedLowpart                                    uint64
 	DRAHighestUSNIssuedHighpart                                      uint64
 	DRAHighestUSNIssuedLowpart                                       uint64
 	DRAInboundBytesCompressedBetweenSitesAfterCompressionPersec      uint32
@@ -616,6 +620,9 @@ func (c *ADCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, er
 	if err := wmi.Query(q, &dst); err != nil {
 		return nil, err
 	}
+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}

 	ch <- prometheus.MustNewConstMetric(
 		c.AddressBookOperationsTotal,
--- a/collector/cpu.go
+++ b/collector/cpu.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_PerfOS_Processor
-// https://msdn.microsoft.com/en-us/library/aa394317(v=vs.90).aspx - Win32_PerfRawData_PerfOS_Processor class
+// +build windows
+
 package collector

 import (
@@ -22,6 +22,7 @@ type CPUCollector struct {
 	DPCsTotal          *prometheus.Desc
 }

+// NewCPUCollector constructs a new CPUCollector
 func NewCPUCollector() (Collector, error) {
 	const subsystem = "cpu"
 	return &CPUCollector{
@@ -63,6 +64,8 @@ func (c *CPUCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_PerfRawData_PerfOS_Processor docs:
+// - https://msdn.microsoft.com/en-us/library/aa394317(v=vs.90).aspx
 type Win32_PerfRawData_PerfOS_Processor struct {
 	Name                  string
 	C1TransitionsPersec   uint64
--- a/collector/cs.go
+++ b/collector/cs.go
@@ -1,9 +1,10 @@
-// returns data points from Win32_ComputerSystem
-// https://msdn.microsoft.com/en-us/library/aa394102 - Win32_ComputerSystem class
+// +build windows

 package collector

 import (
+	"errors"
+
 	"github.com/StackExchange/wmi"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/log"
@@ -49,6 +50,8 @@ func (c *CSCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_ComputerSystem docs:
+// - https://msdn.microsoft.com/en-us/library/aa394102
 type Win32_ComputerSystem struct {
 	NumberOfLogicalProcessors uint32
 	TotalPhysicalMemory       uint64
@@ -60,6 +63,9 @@ func (c *CSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, er
 	if err := wmi.Query(q, &dst); err != nil {
 		return nil, err
 	}
+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}

 	ch <- prometheus.MustNewConstMetric(
 		c.LogicalProcessors,
--- a/collector/dns.go
+++ b/collector/dns.go
@@ -1,9 +1,10 @@
-// returns data points from Win32_PerfRawData_DNS_DNS
-// https://msdn.microsoft.com/en-us/library/ms803992.aspx?f=255&MSPPError=-2147217396
-// https://technet.microsoft.com/en-us/library/cc977686.aspx
+// +build windows
+
 package collector

 import (
+	"errors"
+
 	"github.com/StackExchange/wmi"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/log"
@@ -188,6 +189,9 @@ func (c *DNSCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_PerfRawData_DNS_DNS docs:
+// - https://msdn.microsoft.com/en-us/library/ms803992.aspx?f=255&MSPPError=-2147217396
+// - https://technet.microsoft.com/en-us/library/cc977686.aspx
 type Win32_PerfRawData_DNS_DNS struct {
 	AXFRRequestReceived            uint32
 	AXFRRequestSent                uint32
@@ -237,6 +241,9 @@ func (c *DNSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, e
 	if err := wmi.Query(q, &dst); err != nil {
 		return nil, err
 	}
+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}

 	ch <- prometheus.MustNewConstMetric(
 		c.ZoneTransferRequestsReceived,
--- a/collector/hyperv.go
+++ b/collector/hyperv.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package collector

 import (
--- a/collector/iis.go
+++ b/collector/iis.go
@@ -1,12 +1,9 @@
-// returns data points from the following classes:
-// - Win32_PerfRawData_W3SVC_WebService
-// - Win32_PerfRawData_APPPOOLCountersProvider_APPPOOLWAS
-// - Win32_PerfRawData_W3SVCW3WPCounterProvider_W3SVCW3WP
-// - Win32_PerfRawData_W3SVC_WebServiceCache
+// +build windows

 package collector

 import (
+	"errors"
 	"fmt"
 	"regexp"

@@ -33,7 +30,12 @@ func getIISVersion() simple_version {
 		log.Warn("Couldn't open registry to determine IIS version:", err)
 		return simple_version{}
 	}
-	defer k.Close()
+	defer func() {
+		err = k.Close()
+		if err != nil {
+			log.Warnf("Failed to close registry key: %v", err)
+		}
+	}()

 	major, _, err := k.GetIntegerValue("MajorVersion")
 	if err != nil {
@@ -805,8 +807,8 @@ func NewIISCollector() (Collector, error) {
 			nil,
 		),

-		appWhitelistPattern: regexp.MustCompile(fmt.Sprintf("^(?:%s)$", *siteWhitelist)),
-		appBlacklistPattern: regexp.MustCompile(fmt.Sprintf("^(?:%s)$", *siteBlacklist)),
+		appWhitelistPattern: regexp.MustCompile(fmt.Sprintf("^(?:%s)$", *appWhitelist)),
+		appBlacklistPattern: regexp.MustCompile(fmt.Sprintf("^(?:%s)$", *appBlacklist)),
 	}

 	buildIIS.iis_version = getIISVersion()
@@ -983,7 +985,7 @@ type Win32_PerfRawData_W3SVC_WebServiceCache struct {
 	URICacheMisses                 uint32
 }

-var ApplicationStates = map[uint32]string{
+var applicationStates = map[uint32]string{
 	1: "Uninitialized",
 	2: "Initialized",
 	3: "Running",
@@ -1264,7 +1266,7 @@ func (c *IISCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, e
 		}

 		// Guages
-		for key, label := range ApplicationStates {
+		for key, label := range applicationStates {
 			isCurrentState := 0.0
 			if key == app.CurrentApplicationPoolState {
 				isCurrentState = 1.0
@@ -1738,216 +1740,218 @@ func (c *IISCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, e
 		return nil, err
 	}

-	if len(dst_cache) > 0 {
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_ActiveFlushedEntries,
-			prometheus.GaugeValue,
-			float64(dst_cache[0].ActiveFlushedEntries),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_FileCacheMemoryUsage,
-			prometheus.GaugeValue,
-			float64(dst_cache[0].CurrentFileCacheMemoryUsage),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_MaximumFileCacheMemoryUsage,
-			prometheus.CounterValue,
-			float64(dst_cache[0].MaximumFileCacheMemoryUsage),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_FileCacheFlushesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalFlushedFiles),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_FileCacheQueriesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].FileCacheHits+dst_cache[0].FileCacheMisses),
-		)
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_FileCacheHitsTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].FileCacheHits),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_FilesCached,
-			prometheus.GaugeValue,
-			float64(dst_cache[0].CurrentFilesCached),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_FilesCachedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalFilesCached),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_FilesFlushedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalFlushedFiles),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URICacheFlushesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalFlushedURIs),
-			"user",
-		)
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URICacheFlushesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].KernelTotalFlushedURIs),
-			"kernel",
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URICacheQueriesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].URICacheHits+dst_cache[0].URICacheMisses),
-			"user",
-		)
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URICacheQueriesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].KernelURICacheHits+dst_cache[0].KernelURICacheMisses),
-			"kernel",
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URICacheHitsTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].URICacheHits),
-			"user",
-		)
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URICacheHitsTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].KernelURICacheHits),
-			"kernel",
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URIsCached,
-			prometheus.GaugeValue,
-			float64(dst_cache[0].CurrentURIsCached),
-			"user",
-		)
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URIsCached,
-			prometheus.GaugeValue,
-			float64(dst_cache[0].KernelCurrentURIsCached),
-			"kernel",
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URIsCachedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalURIsCached),
-			"user",
-		)
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URIsCachedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].KernelTotalURIsCached),
-			"kernel",
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URIsFlushedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalFlushedURIs),
-			"user",
-		)
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_URIsFlushedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].KernelTotalFlushedURIs),
-			"kernel",
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_MetadataCached,
-			prometheus.GaugeValue,
-			float64(dst_cache[0].CurrentMetadataCached),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_MetadataCacheFlushes,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalFlushedMetadata),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_MetadataCacheQueriesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].MetadataCacheHits+dst_cache[0].MetadataCacheMisses),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_MetadataCacheHitsTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].MetadataCacheHits),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_MetadataCachedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalMetadataCached),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_MetadataFlushedTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].TotalFlushedMetadata),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_OutputCacheActiveFlushedItems,
-			prometheus.CounterValue,
-			float64(dst_cache[0].OutputCacheCurrentFlushedItems),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_OutputCacheItems,
-			prometheus.CounterValue,
-			float64(dst_cache[0].OutputCacheCurrentItems),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_OutputCacheMemoryUsage,
-			prometheus.CounterValue,
-			float64(dst_cache[0].OutputCacheCurrentMemoryUsage),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_OutputCacheQueriesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].OutputCacheTotalHits+dst_cache[0].OutputCacheTotalMisses),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_OutputCacheHitsTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].OutputCacheTotalHits),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_OutputCacheFlushedItemsTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].OutputCacheTotalFlushedItems),
-		)
-
-		ch <- prometheus.MustNewConstMetric(
-			c.ServiceCache_OutputCacheFlushesTotal,
-			prometheus.CounterValue,
-			float64(dst_cache[0].OutputCacheTotalFlushes),
-		)
+	if len(dst_cache) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
 	}

+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_ActiveFlushedEntries,
+		prometheus.GaugeValue,
+		float64(dst_cache[0].ActiveFlushedEntries),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_FileCacheMemoryUsage,
+		prometheus.GaugeValue,
+		float64(dst_cache[0].CurrentFileCacheMemoryUsage),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_MaximumFileCacheMemoryUsage,
+		prometheus.CounterValue,
+		float64(dst_cache[0].MaximumFileCacheMemoryUsage),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_FileCacheFlushesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalFlushedFiles),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_FileCacheQueriesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].FileCacheHits+dst_cache[0].FileCacheMisses),
+	)
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_FileCacheHitsTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].FileCacheHits),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_FilesCached,
+		prometheus.GaugeValue,
+		float64(dst_cache[0].CurrentFilesCached),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_FilesCachedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalFilesCached),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_FilesFlushedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalFlushedFiles),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URICacheFlushesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalFlushedURIs),
+		"user",
+	)
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URICacheFlushesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].KernelTotalFlushedURIs),
+		"kernel",
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URICacheQueriesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].URICacheHits+dst_cache[0].URICacheMisses),
+		"user",
+	)
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URICacheQueriesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].KernelURICacheHits+dst_cache[0].KernelURICacheMisses),
+		"kernel",
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URICacheHitsTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].URICacheHits),
+		"user",
+	)
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URICacheHitsTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].KernelURICacheHits),
+		"kernel",
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URIsCached,
+		prometheus.GaugeValue,
+		float64(dst_cache[0].CurrentURIsCached),
+		"user",
+	)
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URIsCached,
+		prometheus.GaugeValue,
+		float64(dst_cache[0].KernelCurrentURIsCached),
+		"kernel",
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URIsCachedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalURIsCached),
+		"user",
+	)
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URIsCachedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].KernelTotalURIsCached),
+		"kernel",
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URIsFlushedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalFlushedURIs),
+		"user",
+	)
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_URIsFlushedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].KernelTotalFlushedURIs),
+		"kernel",
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_MetadataCached,
+		prometheus.GaugeValue,
+		float64(dst_cache[0].CurrentMetadataCached),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_MetadataCacheFlushes,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalFlushedMetadata),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_MetadataCacheQueriesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].MetadataCacheHits+dst_cache[0].MetadataCacheMisses),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_MetadataCacheHitsTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].MetadataCacheHits),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_MetadataCachedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalMetadataCached),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_MetadataFlushedTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].TotalFlushedMetadata),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_OutputCacheActiveFlushedItems,
+		prometheus.CounterValue,
+		float64(dst_cache[0].OutputCacheCurrentFlushedItems),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_OutputCacheItems,
+		prometheus.CounterValue,
+		float64(dst_cache[0].OutputCacheCurrentItems),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_OutputCacheMemoryUsage,
+		prometheus.CounterValue,
+		float64(dst_cache[0].OutputCacheCurrentMemoryUsage),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_OutputCacheQueriesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].OutputCacheTotalHits+dst_cache[0].OutputCacheTotalMisses),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_OutputCacheHitsTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].OutputCacheTotalHits),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_OutputCacheFlushedItemsTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].OutputCacheTotalFlushedItems),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ServiceCache_OutputCacheFlushesTotal,
+		prometheus.CounterValue,
+		float64(dst_cache[0].OutputCacheTotalFlushes),
+	)
+
 	return nil, nil
 }
--- a/collector/logical_disk.go
+++ b/collector/logical_disk.go
@@ -1,6 +1,4 @@
-// returns data points from Win32_PerfRawData_PerfDisk_LogicalDisk
-// https://msdn.microsoft.com/en-us/windows/hardware/aa394307(v=vs.71) - Win32_PerfRawData_PerfDisk_LogicalDisk class
-// https://msdn.microsoft.com/en-us/library/ms803973.aspx - LogicalDisk object reference
+// +build windows

 package collector

@@ -144,6 +142,9 @@ func (c *LogicalDiskCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_PerfRawData_PerfDisk_LogicalDisk docs:
+// - https://msdn.microsoft.com/en-us/windows/hardware/aa394307(v=vs.71) - Win32_PerfRawData_PerfDisk_LogicalDisk class
+// - https://msdn.microsoft.com/en-us/library/ms803973.aspx - LogicalDisk object reference
 type Win32_PerfRawData_PerfDisk_LogicalDisk struct {
 	Name                   string
 	CurrentDiskQueueLength uint32
--- a/collector/memory.go
+++ b/collector/memory.go
@@ -0,0 +1,504 @@
+// returns data points from Win32_PerfRawData_PerfOS_Memory
+// <add link to documentation here> - Win32_PerfRawData_PerfOS_Memory class
+
+// +build windows
+
+package collector
+
+import (
+	"github.com/StackExchange/wmi"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/common/log"
+)
+
+func init() {
+	Factories["memory"] = NewMemoryCollector
+}
+
+// A MemoryCollector is a Prometheus collector for WMI Win32_PerfRawData_PerfOS_Memory metrics
+type MemoryCollector struct {
+	AvailableBytes                  *prometheus.Desc
+	CacheBytes                      *prometheus.Desc
+	CacheBytesPeak                  *prometheus.Desc
+	CacheFaultsTotal                *prometheus.Desc
+	CommitLimit                     *prometheus.Desc
+	CommittedBytes                  *prometheus.Desc
+	DemandZeroFaultsTotal           *prometheus.Desc
+	FreeAndZeroPageListBytes        *prometheus.Desc
+	FreeSystemPageTableEntries      *prometheus.Desc
+	ModifiedPageListBytes           *prometheus.Desc
+	PageFaultsTotal                 *prometheus.Desc
+	SwapPageReadsTotal              *prometheus.Desc
+	SwapPagesReadTotal              *prometheus.Desc
+	SwapPagesWrittenTotal           *prometheus.Desc
+	SwapPageOperationsTotal         *prometheus.Desc
+	SwapPageWritesTotal             *prometheus.Desc
+	PoolNonpagedAllocsTotal         *prometheus.Desc
+	PoolNonpagedBytes               *prometheus.Desc
+	PoolPagedAllocsTotal            *prometheus.Desc
+	PoolPagedBytes                  *prometheus.Desc
+	PoolPagedResidentBytes          *prometheus.Desc
+	StandbyCacheCoreBytes           *prometheus.Desc
+	StandbyCacheNormalPriorityBytes *prometheus.Desc
+	StandbyCacheReserveBytes        *prometheus.Desc
+	SystemCacheResidentBytes        *prometheus.Desc
+	SystemCodeResidentBytes         *prometheus.Desc
+	SystemCodeTotalBytes            *prometheus.Desc
+	SystemDriverResidentBytes       *prometheus.Desc
+	SystemDriverTotalBytes          *prometheus.Desc
+	TransitionFaultsTotal           *prometheus.Desc
+	TransitionPagesRepurposedTotal  *prometheus.Desc
+	WriteCopiesTotal                *prometheus.Desc
+}
+
+// NewMemoryCollector ...
+func NewMemoryCollector() (Collector, error) {
+	const subsystem = "memory"
+
+	return &MemoryCollector{
+		AvailableBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "available_bytes"),
+			"The amount of physical memory immediately available for allocation to a process or for system use. It is equal to the sum of memory assigned to"+
+				" the standby (cached), free and zero page lists (AvailableBytes)",
+			nil,
+			nil,
+		),
+		CacheBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "cache_bytes"),
+			"(CacheBytes)",
+			nil,
+			nil,
+		),
+		CacheBytesPeak: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "cache_bytes_peak"),
+			"(CacheBytesPeak)",
+			nil,
+			nil,
+		),
+		CacheFaultsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "cache_faults_total"),
+			"(CacheFaultsPersec)",
+			nil,
+			nil,
+		),
+		CommitLimit: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "commit_limit"),
+			"(CommitLimit)",
+			nil,
+			nil,
+		),
+		CommittedBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "committed_bytes"),
+			"(CommittedBytes)",
+			nil,
+			nil,
+		),
+		DemandZeroFaultsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "demand_zero_faults_total"),
+			"The number of zeroed pages required to satisfy faults. Zeroed pages, pages emptied of previously stored data and filled with zeros, are a security"+
+				" feature of Windows that prevent processes from seeing data stored by earlier processes that used the memory space (DemandZeroFaults)",
+			nil,
+			nil,
+		),
+		FreeAndZeroPageListBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "free_and_zero_page_list_bytes"),
+			"(FreeAndZeroPageListBytes)",
+			nil,
+			nil,
+		),
+		FreeSystemPageTableEntries: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "free_system_page_table_entries"),
+			"(FreeSystemPageTableEntries)",
+			nil,
+			nil,
+		),
+		ModifiedPageListBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "modified_page_list_bytes"),
+			"(ModifiedPageListBytes)",
+			nil,
+			nil,
+		),
+		PageFaultsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "page_faults_total"),
+			"(PageFaultsPersec)",
+			nil,
+			nil,
+		),
+		SwapPageReadsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "swap_page_reads_total"),
+			"Number of disk page reads (a single read operation reading several pages is still only counted once) (PageReadsPersec)",
+			nil,
+			nil,
+		),
+		SwapPagesReadTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "swap_pages_read_total"),
+			"Number of pages read across all page reads (ie counting all pages read even if they are read in a single operation) (PagesInputPersec)",
+			nil,
+			nil,
+		),
+		SwapPagesWrittenTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "swap_pages_written_total"),
+			"Number of pages written across all page writes (ie counting all pages written even if they are written in a single operation) (PagesOutputPersec)",
+			nil,
+			nil,
+		),
+		SwapPageOperationsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "swap_page_operations_total"),
+			"Total number of swap page read and writes (PagesPersec)",
+			nil,
+			nil,
+		),
+		SwapPageWritesTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "swap_page_writes_total"),
+			"Number of disk page writes (a single write operation writing several pages is still only counted once) (PageWritesPersec)",
+			nil,
+			nil,
+		),
+		PoolNonpagedAllocsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "pool_nonpaged_allocs_total"),
+			"The number of calls to allocate space in the nonpaged pool. The nonpaged pool is an area of system memory area for objects that cannot be written"+
+				" to disk, and must remain in physical memory as long as they are allocated (PoolNonpagedAllocs)",
+			nil,
+			nil,
+		),
+		PoolNonpagedBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "pool_nonpaged_bytes_total"),
+			"(PoolNonpagedBytes)",
+			nil,
+			nil,
+		),
+		PoolPagedAllocsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "pool_paged_allocs_total"),
+			"(PoolPagedAllocs)",
+			nil,
+			nil,
+		),
+		PoolPagedBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "pool_paged_bytes"),
+			"(PoolPagedBytes)",
+			nil,
+			nil,
+		),
+		PoolPagedResidentBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "pool_paged_resident_bytes"),
+			"(PoolPagedResidentBytes)",
+			nil,
+			nil,
+		),
+		StandbyCacheCoreBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "standby_cache_core_bytes"),
+			"(StandbyCacheCoreBytes)",
+			nil,
+			nil,
+		),
+		StandbyCacheNormalPriorityBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "standby_cache_normal_priority_bytes"),
+			"(StandbyCacheNormalPriorityBytes)",
+			nil,
+			nil,
+		),
+		StandbyCacheReserveBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "standby_cache_reserve_bytes"),
+			"(StandbyCacheReserveBytes)",
+			nil,
+			nil,
+		),
+		SystemCacheResidentBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "system_cache_resident_bytes"),
+			"(SystemCacheResidentBytes)",
+			nil,
+			nil,
+		),
+		SystemCodeResidentBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "system_code_resident_bytes"),
+			"(SystemCodeResidentBytes)",
+			nil,
+			nil,
+		),
+		SystemCodeTotalBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "system_code_total_bytes"),
+			"(SystemCodeTotalBytes)",
+			nil,
+			nil,
+		),
+		SystemDriverResidentBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "system_driver_resident_bytes"),
+			"(SystemDriverResidentBytes)",
+			nil,
+			nil,
+		),
+		SystemDriverTotalBytes: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "system_driver_total_bytes"),
+			"(SystemDriverTotalBytes)",
+			nil,
+			nil,
+		),
+		TransitionFaultsTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "transition_faults_total"),
+			"(TransitionFaultsPersec)",
+			nil,
+			nil,
+		),
+		TransitionPagesRepurposedTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "transition_pages_repurposed_total"),
+			"(TransitionPagesRePurposedPersec)",
+			nil,
+			nil,
+		),
+		WriteCopiesTotal: prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, "write_copies_total"),
+			"The number of page faults caused by attempting to write that were satisfied by copying the page from elsewhere in physical memory (WriteCopiesPersec)",
+			nil,
+			nil,
+		),
+	}, nil
+}
+
+// Collect sends the metric values for each metric
+// to the provided prometheus Metric channel.
+func (c *MemoryCollector) Collect(ch chan<- prometheus.Metric) error {
+	if desc, err := c.collect(ch); err != nil {
+		log.Error("failed collecting memory metrics:", desc, err)
+		return err
+	}
+	return nil
+}
+
+type Win32_PerfRawData_PerfOS_Memory struct {
+	AvailableBytes                  uint64
+	AvailableKBytes                 uint64
+	AvailableMBytes                 uint64
+	CacheBytes                      uint64
+	CacheBytesPeak                  uint64
+	CacheFaultsPersec               uint32
+	CommitLimit                     uint64
+	CommittedBytes                  uint64
+	DemandZeroFaultsPersec          uint32
+	FreeAndZeroPageListBytes        uint64
+	FreeSystemPageTableEntries      uint32
+	ModifiedPageListBytes           uint64
+	PageFaultsPersec                uint32
+	PageReadsPersec                 uint32
+	PagesInputPersec                uint32
+	PagesOutputPersec               uint32
+	PagesPersec                     uint32
+	PageWritesPersec                uint32
+	PoolNonpagedAllocs              uint32
+	PoolNonpagedBytes               uint64
+	PoolPagedAllocs                 uint32
+	PoolPagedBytes                  uint64
+	PoolPagedResidentBytes          uint64
+	StandbyCacheCoreBytes           uint64
+	StandbyCacheNormalPriorityBytes uint64
+	StandbyCacheReserveBytes        uint64
+	SystemCacheResidentBytes        uint64
+	SystemCodeResidentBytes         uint64
+	SystemCodeTotalBytes            uint64
+	SystemDriverResidentBytes       uint64
+	SystemDriverTotalBytes          uint64
+	TransitionFaultsPersec          uint32
+	TransitionPagesRePurposedPersec uint32
+	WriteCopiesPersec               uint32
+}
+
+func (c *MemoryCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
+	var dst []Win32_PerfRawData_PerfOS_Memory
+	q := queryAll(&dst)
+	if err := wmi.Query(q, &dst); err != nil {
+		return nil, err
+	}
+
+	ch <- prometheus.MustNewConstMetric(
+		c.AvailableBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].AvailableBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.CacheBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].CacheBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.CacheBytesPeak,
+		prometheus.GaugeValue,
+		float64(dst[0].CacheBytesPeak),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.CacheFaultsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].CacheFaultsPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.CommitLimit,
+		prometheus.GaugeValue,
+		float64(dst[0].CommitLimit),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.CommittedBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].CommittedBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.DemandZeroFaultsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].DemandZeroFaultsPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.FreeAndZeroPageListBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].FreeAndZeroPageListBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.FreeSystemPageTableEntries,
+		prometheus.GaugeValue,
+		float64(dst[0].FreeSystemPageTableEntries),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.ModifiedPageListBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].ModifiedPageListBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.PageFaultsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PageFaultsPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SwapPageReadsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PageReadsPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SwapPagesReadTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PagesInputPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SwapPagesWrittenTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PagesOutputPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SwapPageOperationsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PagesPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SwapPageWritesTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PageWritesPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.PoolNonpagedAllocsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PoolNonpagedAllocs),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.PoolNonpagedBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].PoolNonpagedBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.PoolPagedAllocsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].PoolPagedAllocs),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.PoolPagedBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].PoolPagedBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.PoolPagedResidentBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].PoolPagedResidentBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.StandbyCacheCoreBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].StandbyCacheCoreBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.StandbyCacheNormalPriorityBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].StandbyCacheNormalPriorityBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.StandbyCacheReserveBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].StandbyCacheReserveBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SystemCacheResidentBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].SystemCacheResidentBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SystemCodeResidentBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].SystemCodeResidentBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SystemCodeTotalBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].SystemCodeTotalBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SystemDriverResidentBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].SystemDriverResidentBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.SystemDriverTotalBytes,
+		prometheus.GaugeValue,
+		float64(dst[0].SystemDriverTotalBytes),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.TransitionFaultsTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].TransitionFaultsPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.TransitionPagesRepurposedTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].TransitionPagesRePurposedPersec),
+	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.WriteCopiesTotal,
+		prometheus.GaugeValue,
+		float64(dst[0].WriteCopiesPersec),
+	)
+
+	return nil, nil
+}
--- a/collector/msmq.go
+++ b/collector/msmq.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_MSMQ_MSMQQueue
-// <add link to documentation here> - Win32_PerfRawData_MSMQ_MSMQQueue class
+// +build windows
+
 package collector

 import (
--- a/collector/mssql.go
+++ b/collector/mssql.go
--- a/collector/net.go
+++ b/collector/net.go
@@ -1,8 +1,4 @@
-// returns data points from Win32_PerfRawData_Tcpip_NetworkInterface
-
-// https://technet.microsoft.com/en-us/security/aa394340(v=vs.80) (Win32_PerfRawData_Tcpip_NetworkInterface class)
-// https://msdn.microsoft.com/en-us/library/aa394216 (Win32_NetworkAdapter class)
-// https://msdn.microsoft.com/en-us/library/aa394353 (Win32_PnPEntity class)
+// +build windows

 package collector

@@ -150,6 +146,8 @@ func mangleNetworkName(name string) string {
 	return nicNameToUnderscore.ReplaceAllString(name, "_")
 }

+// Win32_PerfRawData_Tcpip_NetworkInterface docs:
+// - https://technet.microsoft.com/en-us/security/aa394340(v=vs.80)
 type Win32_PerfRawData_Tcpip_NetworkInterface struct {
 	BytesReceivedPerSec      uint64
 	BytesSentPerSec          uint64
--- a/collector/net_test.go
+++ b/collector/net_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package collector

 import "testing"
--- a/collector/netframework_clrexceptions.go
+++ b/collector/netframework_clrexceptions.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRExceptions
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRExceptions class
+// +build windows
+
 package collector

 import (
--- a/collector/netframework_clrinterop.go
+++ b/collector/netframework_clrinterop.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRInterop
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRInterop class
+// +build windows
+
 package collector

 import (
--- a/collector/netframework_clrjit.go
+++ b/collector/netframework_clrjit.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRJit
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRJit class
+// +build windows
+
 package collector

 import (
--- a/collector/netframework_clrloading.go
+++ b/collector/netframework_clrloading.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRLoading
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRLoading class
+// +build windows
+
 package collector

 import (
--- a/collector/netframework_clrlocksandthreads.go
+++ b/collector/netframework_clrlocksandthreads.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRLocksAndThreads
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRLocksAndThreads class
+// +build windows
+
 package collector

 import (
--- a/collector/netframework_clrmemory.go
+++ b/collector/netframework_clrmemory.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRMemory
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRMemory class
+// +build windows
+
 package collector

 import (
--- a/collector/netframework_clrremoting.go
+++ b/collector/netframework_clrremoting.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRRemoting
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRRemoting class
+// +build windows
+
 package collector

 import (
--- a/collector/netframework_clrsecurity.go
+++ b/collector/netframework_clrsecurity.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_NETFramework_NETCLRSecurity
-// <add link to documentation here> - Win32_PerfRawData_NETFramework_NETCLRSecurity class
+// +build windows
+
 package collector

 import (
--- a/collector/os.go
+++ b/collector/os.go
@@ -1,9 +1,9 @@
-// returns data points from Win32_OperatingSystem
-// https://msdn.microsoft.com/en-us/library/aa394239 - Win32_OperatingSystem class
+// +build windows

 package collector

 import (
+	"errors"
 	"time"

 	"github.com/StackExchange/wmi"
@@ -121,6 +121,8 @@ func (c *OSCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_OperatingSystem docs:
+// - https://msdn.microsoft.com/en-us/library/aa394239 - Win32_OperatingSystem class
 type Win32_OperatingSystem struct {
 	FreePhysicalMemory      uint64
 	FreeSpaceInPagingFiles  uint64
@@ -142,6 +144,10 @@ func (c *OSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, er
 		return nil, err
 	}

+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}
+
 	ch <- prometheus.MustNewConstMetric(
 		c.PhysicalMemoryFreeBytes,
 		prometheus.GaugeValue,
--- a/collector/process.go
+++ b/collector/process.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_PerfRawData_PerfProc_Process
-// https://msdn.microsoft.com/en-us/library/aa394323(v=vs.85).aspx - Win32_PerfRawData_PerfProc_Process class
+// +build windows
+
 package collector

 import (
@@ -143,6 +143,8 @@ func (c *ProcessCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_PerfRawData_PerfProc_Process docs:
+// - https://msdn.microsoft.com/en-us/library/aa394323(v=vs.85).aspx
 type Win32_PerfRawData_PerfProc_Process struct {
 	Name                    string
 	CreatingProcessID       uint32
@@ -177,6 +179,11 @@ type Win32_PerfRawData_PerfProc_Process struct {
 	WorkingSetPrivate       uint64
 }

+type WorkerProcess struct {
+	AppPoolName string
+	ProcessId   uint32
+}
+
 func (c *ProcessCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
 	var dst []Win32_PerfRawData_PerfProc_Process
 	q := queryAllWhere(&dst, c.queryWhereClause)
@@ -184,6 +191,12 @@ func (c *ProcessCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Des
 		return nil, err
 	}

+	var dst_wp []WorkerProcess
+	q_wp := queryAll(&dst_wp)
+	if err := wmi.QueryNamespace(q_wp, &dst_wp, "root\\WebAdministration"); err != nil {
+		log.Debugf("Could not query WebAdministration namespace for IIS worker processes: %v. Skipping", err)
+	}
+
 	for _, process := range dst {

 		if process.Name == "_Total" {
@@ -194,6 +207,13 @@ func (c *ProcessCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Des
 		pid := strconv.FormatUint(uint64(process.IDProcess), 10)
 		cpid := strconv.FormatUint(uint64(process.CreatingProcessID), 10)

+		for _, wp := range dst_wp {
+			if wp.ProcessId == process.IDProcess {
+				processName = strings.Join([]string{processName, wp.AppPoolName}, "_")
+				break
+			}
+		}
+
 		ch <- prometheus.MustNewConstMetric(
 			c.StartTime,
 			prometheus.GaugeValue,
--- a/collector/service.go
+++ b/collector/service.go
@@ -1,5 +1,5 @@
-// returns data points from Win32_Service
-// https://msdn.microsoft.com/en-us/library/aa394418(v=vs.85).aspx - Win32_Service class
+// +build windows
+
 package collector

 import (
@@ -72,6 +72,8 @@ func (c *serviceCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_Service docs:
+// - https://msdn.microsoft.com/en-us/library/aa394418(v=vs.85).aspx
 type Win32_Service struct {
 	Name      string
 	State     string
--- a/collector/system.go
+++ b/collector/system.go
@@ -1,9 +1,9 @@
-// returns data points from Win32_PerfRawData_PerfOS_System class
-// https://web.archive.org/web/20050830140516/http://msdn.microsoft.com/library/en-us/wmisdk/wmi/win32_perfrawdata_perfos_system.asp
+// +build windows

 package collector

 import (
+	"errors"
 	"github.com/StackExchange/wmi"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/log"
@@ -77,6 +77,8 @@ func (c *SystemCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_PerfRawData_PerfOS_System docs:
+// - https://web.archive.org/web/20050830140516/http://msdn.microsoft.com/library/en-us/wmisdk/wmi/win32_perfrawdata_perfos_system.asp
 type Win32_PerfRawData_PerfOS_System struct {
 	ContextSwitchesPersec     uint32
 	ExceptionDispatchesPersec uint32
@@ -94,6 +96,9 @@ func (c *SystemCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc
 	if err := wmi.Query(q, &dst); err != nil {
 		return nil, err
 	}
+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}

 	ch <- prometheus.MustNewConstMetric(
 		c.ContextSwitchesTotal,
--- a/collector/tcp.go
+++ b/collector/tcp.go
@@ -1,10 +1,9 @@
-// returns data points from Win32_PerfRawData_Tcpip_TCPv4
-
-// https://msdn.microsoft.com/en-us/library/aa394341(v=vs.85).aspx (Win32_PerfRawData_Tcpip_TCPv4 class)
+// +build windows

 package collector

 import (
+	"errors"
 	"github.com/StackExchange/wmi"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/log"
@@ -99,6 +98,8 @@ func (c *TCPCollector) Collect(ch chan<- prometheus.Metric) error {
 	return nil
 }

+// Win32_PerfRawData_Tcpip_TCPv4 docs
+// - https://msdn.microsoft.com/en-us/library/aa394341(v=vs.85).aspx
 type Win32_PerfRawData_Tcpip_TCPv4 struct {
 	ConnectionFailures          uint64
 	ConnectionsActive           uint64
@@ -118,6 +119,9 @@ func (c *TCPCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, e
 	if err := wmi.Query(q, &dst); err != nil {
 		return nil, err
 	}
+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}

 	// Counters
 	ch <- prometheus.MustNewConstMetric(
--- a/collector/textfile.go
+++ b/collector/textfile.go
@@ -25,6 +25,7 @@ import (
 	"strings"
 	"time"

+	"github.com/dimchansky/utfbom"
 	"github.com/prometheus/client_golang/prometheus"
 	dto "github.com/prometheus/client_model/go"
 	"github.com/prometheus/common/expfmt"
@@ -236,8 +237,17 @@ fileLoop:
 			continue
 		}
 		var parser expfmt.TextParser
-		parsedFamilies, err := parser.TextToMetricFamilies(carriageReturnFilteringReader{r: file})
-		file.Close()
+		r, encoding := utfbom.Skip(carriageReturnFilteringReader{r: file})
+		if err = checkBOM(encoding); err != nil {
+			log.Errorf("Invalid file encoding detected in %s: %s - file must be UTF8", path, err.Error())
+			error = 1.0
+			continue
+		}
+		parsedFamilies, err := parser.TextToMetricFamilies(r)
+		closeErr := file.Close()
+		if closeErr != nil {
+			log.Warnf("Error closing file: %v", err)
+		}
 		if err != nil {
 			log.Errorf("Error parsing %q: %v", path, err)
 			error = 1.0
@@ -279,3 +289,11 @@ fileLoop:
 	)
 	return nil
 }
+
+func checkBOM(encoding utfbom.Encoding) error {
+	if encoding == utfbom.Unknown || encoding == utfbom.UTF8 {
+		return nil
+	}
+
+	return fmt.Errorf(encoding.String())
+}
--- a/collector/textfile_test.go
+++ b/collector/textfile_test.go
@@ -1,14 +1,15 @@
 package collector

 import (
-	"testing"
-	"strings"
+	"github.com/dimchansky/utfbom"
 	"io/ioutil"
+	"strings"
+	"testing"
 )

 func TestCRFilter(t *testing.T) {
 	sr := strings.NewReader("line 1\r\nline 2")
-	cr := carriageReturnFilteringReader{ r: sr }
+	cr := carriageReturnFilteringReader{r: sr}
 	b, err := ioutil.ReadAll(cr)
 	if err != nil {
 		t.Error(err)
@@ -17,4 +18,30 @@ func TestCRFilter(t *testing.T) {
 	if string(b) != "line 1\nline 2" {
 		t.Errorf("Unexpected output %q", b)
 	}
-}
+}
+
+func TestCheckBOM(t *testing.T) {
+	testdata := []struct {
+		encoding utfbom.Encoding
+		err      string
+	}{
+		{utfbom.Unknown, ""},
+		{utfbom.UTF8, ""},
+		{utfbom.UTF16BigEndian, "UTF16BigEndian"},
+		{utfbom.UTF16LittleEndian, "UTF16LittleEndian"},
+		{utfbom.UTF32BigEndian, "UTF32BigEndian"},
+		{utfbom.UTF32LittleEndian, "UTF32LittleEndian"},
+	}
+	for _, d := range testdata {
+		err := checkBOM(d.encoding)
+		if d.err == "" && err != nil {
+			t.Error(err)
+		}
+		if d.err != "" && err == nil {
+			t.Errorf("Missing expected error %s", d.err)
+		}
+		if err != nil && !strings.Contains(err.Error(), d.err) {
+			t.Error(err)
+		}
+	}
+}
--- a/collector/vmware.go
+++ b/collector/vmware.go
@@ -1,7 +1,10 @@
-// returns data points from Win32_PerfRawData_vmGuestLib_VMem and Win32_PerfRawData_vmGuestLib_VCPU
+// +build windows
+
 package collector

 import (
+	"errors"
+
 	"github.com/StackExchange/wmi"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/log"
@@ -35,6 +38,7 @@ type VmwareCollector struct {
 	HostProcessorSpeedMHz *prometheus.Desc
 }

+// NewVmwareCollector constructs a new VmwareCollector
 func NewVmwareCollector() (Collector, error) {
 	const subsystem = "vmware"
 	return &VmwareCollector{
@@ -201,6 +205,9 @@ func (c *VmwareCollector) collectMem(ch chan<- prometheus.Metric) (*prometheus.D
 	if err := wmi.Query(q, &dst); err != nil {
 		return nil, err
 	}
+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}

 	ch <- prometheus.MustNewConstMetric(
 		c.MemActive,
@@ -287,6 +294,9 @@ func (c *VmwareCollector) collectCpu(ch chan<- prometheus.Metric) (*prometheus.D
 	if err := wmi.Query(q, &dst); err != nil {
 		return nil, err
 	}
+	if len(dst) == 0 {
+		return nil, errors.New("WMI query returned empty result set")
+	}

 	ch <- prometheus.MustNewConstMetric(
 		c.CpuLimitMHz,
--- a/contrib/console_templates/wmi-overview.html
+++ b/contrib/console_templates/wmi-overview.html
@@ -0,0 +1,140 @@
+{{ template "head" . }}
+
+{{ template "prom_content_head" . }}
+  <h1>Node Overview - {{ reReplaceAll "(.*?://)([^:/]+?)(:\\d+)?/.*" "$2" .Params.instance }}</h1>
+
+  <h3>CPU Usage</h3>
+  <div id="cpuGraph"></div>
+  <script>
+  new PromConsole.Graph({
+    node: document.querySelector("#cpuGraph"),
+    expr: "sum by (mode)(irate(wmi_cpu_time_total{job='node',instance='{{ .Params.instance }}',mode!='idle'}[5m]))",
+    renderer: 'area',
+    max: {{ with printf "count(count by (cpu)(wmi_cpu_time_total{job='node',instance='%s'}))" .Params.instance | query }}{{ . | first | value }}{{ else}}undefined{{end}},
+    yAxisFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+    yHoverFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+    yTitle: 'Cores'
+  })
+  </script>
+
+  <h3>Network Utilization</h3>
+  <div id="networkioGraph"></div>
+  <script>
+  new PromConsole.Graph({
+    node: document.querySelector("#networkioGraph"),
+    expr: [
+      "irate(wmi_net_bytes_sent_total{job='node',instance='{{ .Params.instance }}',nic!~'^isatap_ec2_internal'}[5m])",
+      "irate(wmi_net_bytes_received_total{job='node',instance='{{ .Params.instance }}',nic!~'^isatap_ec2_internal'}[5m])",
+    ],
+    min: 0,
+    name: [ 'sent', 'received' ],
+    yAxisFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+    yHoverFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+    yUnits: "B",
+    yTitle: 'Network IO'
+  })
+  </script>
+
+  <h3>Disk I/O Utilization</h3>
+  <div id="diskioGraph"></div>
+  <script>
+  new PromConsole.Graph({
+    node: document.querySelector("#diskioGraph"),
+    expr: [
+      "100 - irate(wmi_logical_disk_idle_seconds_total{job='node',instance='{{ .Params.instance }}',volume!~'^HarddiskVolume.*$'}[5m]) * 100",
+    ],
+    min: 0,
+    name: '[[ volume ]]',
+    yAxisFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+    yHoverFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+    yUnits: "%",
+    yTitle: 'Disk I/O Utilization'
+  })
+  </script>
+
+  <h3>Memory</h3>
+  <div id="memoryGraph"></div>
+  <script>
+  new PromConsole.Graph({
+    node: document.querySelector("#memoryGraph"),
+    renderer: 'area',
+    expr: [
+      "wmi_cs_physical_memory_bytes{job='node',instance='{{ .Params.instance }}'}",
+      "wmi_os_physical_memory_free_bytes{job='node',instance='{{ .Params.instance }}'}",
+      "wmi_cs_physical_memory__bytes{job='node',instance='{{ .Params.instance }}'} - wmi_os_physical_memory_free_bytes{job='node',instance='{{.Params.instance}}'}",
+      "wmi_os_virtual_memory_bytes{job='node',instance='{{ .Params.instance }}'}",
+    ],
+    name: ["Physical", "Free", "Used", "Virtual"],
+    min: 0,
+    yUnits: "B",
+    yAxisFormatter: PromConsole.NumberFormatter.humanize1024,
+    yHoverFormatter: PromConsole.NumberFormatter.humanize1024,
+    yTitle: 'Memory'
+  })
+  </script>
+
+{{ template "prom_right_table_head" }}
+  <tr><th colspan="2">Overview</th></tr>
+  <tr>
+    <td>User CPU</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "sum(irate(wmi_cpu_time_total{job='node',instance='%s',mode='user'}[5m])) * 100 / count(count by (cpu)(wmi_cpu_time_total{job='node',instance='%s'}))" .Params.instance .Params.instance) "%" "printf.1f") }}</td>
+  </tr>
+  <tr>
+    <td>Privileged CPU</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "sum(irate(wmi_cpu_time_total{job='node',instance='%s',mode='privileged'}[5m])) * 100 / count(count by (cpu)(wmi_cpu_time_total{job='node',instance='%s'}))" .Params.instance .Params.instance) "%" "printf.1f") }}</td>
+  </tr>
+  <tr>
+    <td>Memory Total</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "wmi_cs_physical_memory_bytes{job='node',instance='%s'}" .Params.instance) "B" "humanize1024") }}</td>
+  </tr>
+  <tr>
+    <td>Memory Free</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "wmi_os_physical_memory_free_bytes{job='node',instance='%s'}" .Params.instance) "B" "humanize1024") }}</td>
+  </tr>
+<tr>
+  <th colspan="2">Network</th>
+</tr>
+{{ range printf "wmi_net_bytes_received_total{job='node',instance='%s',nic!='isatap_ec2_internal'}" .Params.instance | query | sortByLabel "nic" }}
+  <tr>
+    <td>{{ .Labels.nic }} Received</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "irate(wmi_net_bytes_received_total{job='node',instance='%s',nic='%s'}[5m])" .Labels.instance .Labels.nic) "B/s" "humanize") }}</td>
+  </tr>
+  <tr>
+    <td>{{ .Labels.nic }} Transmitted</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "irate(wmi_net_bytes_sent_total{job='node',instance='%s',nic='%s'}[5m])" .Labels.instance .Labels.nic) "B/s" "humanize") }}</td>
+  </tr>
+{{ end }}
+</tr>
+<tr>
+  <th colspan="2">Disks</th>
+</tr>
+{{ range printf "wmi_logical_disk_size_bytes{job='node',instance='%s',volume!~'^HarddiskVolume.*$'}" .Params.instance | query | sortByLabel "volume" }}
+  <tr>
+    <td>{{ .Labels.volume }} Utilization</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "100 - irate(wmi_logical_disk_idle_seconds_total{job='node',instance='%s',volume='%s'}[5m]) * 100" .Labels.instance .Labels.volume) "%" "printf.1f") }}</td>
+  </tr>
+{{ end }}
+{{ range printf "wmi_logical_disk_size_bytes{job='node',instance='%s',volume!~'^HarddiskVolume.*$'}" .Params.instance | query | sortByLabel "volume" }}
+  <tr>
+    <td>{{ .Labels.volume }} Throughput</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "irate(wmi_logical_disk_read_bytes_total{job='node',instance='%s',volume='%s'}[5m]) + irate(wmi_logical_disk_write_bytes_total{job='node',instance='%s',volume='%s'}[5m])" .Labels.instance .Labels.volume .Labels.instance .Labels.volume) "B/s" "humanize") }}</td>
+  </tr>
+{{ end }}
+<tr>
+  <th colspan="2">Filesystem Fullness</th>
+</tr>
+{{ define "roughlyNearZero" }}
+{{ if gt .1 . }}~0{{ else }}{{ printf "%.1f" . }}{{ end }}
+{{ end }}
+{{ range printf "wmi_logical_disk_size_bytes{job='node',instance='%s',volume!~'^HarddiskVolume.*$'}" .Params.instance | query | sortByLabel "volume" }}
+  <tr>
+    <td>{{ .Labels.volume }}</td>
+    <td>{{ template "prom_query_drilldown" (args (printf "100 - wmi_logical_disk_free_bytes{job='node',instance='%s',volume='%s'} / wmi_logical_disk_size_bytes{job='node'} * 100" .Labels.instance .Labels.volume) "%" "roughlyNearZero") }}</td>
+  </tr>
+{{ end }}
+</tr>
+{{ template "prom_right_table_tail" }}
+
+{{ template "prom_content_tail" . }}
+
+{{ template "tail" }}
--- a/docs/README.md
+++ b/docs/README.md
@@ -0,0 +1,30 @@
+# Documentation
+This directory contains documentation of the collectors in the WMI exporter, with information such as what metrics are exported, any flags for additional configuration, and some example usage in alerts and queries.
+
+# Collectors
+- [`ad`](collector.ad.md)
+- [`cpu`](collector.cpu.md)
+- [`cs`](collector.cs.md)
+- [`dns`](collector.dns.md)
+- [`hyperv`](collector.hyperv.md)
+- [`iis`](collector.iis.md)
+- [`logical_disk`](collector.logical_disk.md)
+- [`memory`](collector.memory.md)
+- [`msmq`](collector.msmq.md)
+- [`mssql`](collector.mssql.md)
+- [`netframework_clrexceptions`](collector.netframework_clrexceptions.md)
+- [`netframework_clrinterop`](collector.netframework_clrinterop.md)
+- [`netframework_clrjit`](collector.netframework_clrjit.md)
+- [`netframework_clrloading`](collector.netframework_clrloading.md)
+- [`netframework_clrlocksandthreads`](collector.netframework_clrlocksandthreads.md)
+- [`netframework_clrmemory`](collector.netframework_clrmemory.md)
+- [`netframework_clrremoting`](collector.netframework_clrremoting.md)
+- [`netframework_clrsecurity`](collector.netframework_clrsecurity.md)
+- [`net`](collector.net.md)
+- [`os`](collector.os.md)
+- [`process`](collector.process.md)
+- [`service`](collector.service.md)
+- [`system`](collector.system.md)
+- [`tcp`](collector.tcp.md)
+- [`textfile`](collector.textfile.md)
+- [`vmware`](collector.vmware.md)
--- a/docs/collector-template.md
+++ b/docs/collector-template.md
@@ -0,0 +1,47 @@
+# %name% collector
+
+The %name% collector exposes metrics about ...
+
+|||
+-|-
+Metric name prefix  | `%name%`
+Classes             | [`...`](https://msdn.microsoft.com/en-us/library/...)
+Enabled by default? | Yes/No
+
+## Flags
+
+### `--collector....`
+
+Add description...
+
+Example: `--collector....`
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_...` | ... | counter/gauge/histogram/summary | ...
+
+### Example metric
+
+...:
+
+`wmi_...{...} 1`
+
+## Useful queries
+### Add queries...
+
+`...`
+
+## Alerting examples
+### Add alerts...
+
+```yaml
+  - alert: ""
+    expr: ""
+    for: ""
+    labels:
+      urgency: ""
+    annotations:
+      summary: ""
+```
--- a/docs/collector.ad.md
+++ b/docs/collector.ad.md
@@ -0,0 +1,88 @@
+# ad collector
+
+The ad collector exposes metrics about a Active Directory Domain Services domain controller
+
+|||
+-|-
+Metric name prefix  | `ad`
+Classes             | [`Win32_PerfRawData_DirectoryServices_DirectoryServices`](https://msdn.microsoft.com/en-us/library/ms803980.aspx)
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_ad_address_book_operations_total` | _Not yet documented_ | counter | `operation`
+`wmi_ad_address_book_client_sessions` | _Not yet documented_ | gauge | None
+`wmi_ad_approximate_highest_distinguished_name_tag` | _Not yet documented_ | gauge | None
+`wmi_ad_atq_estimated_delay_seconds` | _Not yet documented_ | gauge | None
+`wmi_ad_atq_outstanding_requests` | _Not yet documented_ | gauge | None
+`wmi_ad_atq_average_request_latency` | _Not yet documented_ | gauge | None
+`wmi_ad_atq_current_threads` | _Not yet documented_ | gauge | `service`
+`wmi_ad_searches_total` | _Not yet documented_ | counter | `scope`
+`wmi_ad_database_operations_total` | _Not yet documented_ | counter | `operation`
+`wmi_ad_binds_total` | _Not yet documented_ | counter | `bind_method`
+`wmi_ad_replication_highest_usn` | _Not yet documented_ | counter | `state`
+`wmi_ad_replication_data_intrasite_bytes_total` | _Not yet documented_ | counter | `direction`
+`wmi_ad_replication_data_intersite_bytes_total` | _Not yet documented_ | counter | `direction`
+`wmi_ad_replication_inbound_sync_objects_remaining` | _Not yet documented_ | gauge | None
+`wmi_ad_replication_inbound_link_value_updates_remaining` | _Not yet documented_ | gauge | None
+`wmi_ad_replication_inbound_objects_updated_total` | _Not yet documented_ | counter | None
+`wmi_ad_replication_inbound_objects_filtered_total` | _Not yet documented_ | counter | None
+`wmi_ad_replication_inbound_properties_updated_total` | _Not yet documented_ | counter | None
+`wmi_ad_replication_inbound_properties_filtered_total` | _Not yet documented_ | counter | None
+`wmi_ad_replication_pending_operations` | _Not yet documented_ | gauge | None
+`wmi_ad_replication_pending_synchronizations` | _Not yet documented_ | gauge | None
+`wmi_ad_replication_sync_requests_total` | _Not yet documented_ | counter | None
+`wmi_ad_replication_sync_requests_success_total` | _Not yet documented_ | counter | None
+`wmi_ad_replication_sync_requests_schema_mismatch_failure_total` | _Not yet documented_ | counter | None
+`wmi_ad_name_translations_total` | _Not yet documented_ | counter | `target_name`
+`wmi_ad_change_monitors_registered` | _Not yet documented_ | gauge | None
+`wmi_ad_change_monitor_updates_pending` | _Not yet documented_ | gauge | None
+`wmi_ad_name_cache_hits_total` | _Not yet documented_ | counter | None
+`wmi_ad_name_cache_lookups_total` | _Not yet documented_ | counter | None
+`wmi_ad_directory_operations_total` | _Not yet documented_ | counter | `operation`, `origin`
+`wmi_ad_directory_search_suboperations_total` | _Not yet documented_ | counter | None
+`wmi_ad_security_descriptor_propagation_events_total` | _Not yet documented_ | counter | None
+`wmi_ad_security_descriptor_propagation_events_queued` | _Not yet documented_ | gauge | None
+`wmi_ad_security_descriptor_propagation_access_wait_total_seconds` | _Not yet documented_ | gauge | None
+`wmi_ad_security_descriptor_propagation_items_queued_total` | _Not yet documented_ | counter | None
+`wmi_ad_directory_service_threads` | _Not yet documented_ | gauge | None
+`wmi_ad_ldap_closed_connections_total` | _Not yet documented_ | counter | None
+`wmi_ad_ldap_opened_connections_total` | _Not yet documented_ | counter | `type`
+`wmi_ad_ldap_active_threads` | _Not yet documented_ | gauge | None
+`wmi_ad_ldap_last_bind_time_seconds` | _Not yet documented_ | gauge | None
+`wmi_ad_ldap_searches_total` | _Not yet documented_ | counter | None
+`wmi_ad_ldap_udp_operations_total` | _Not yet documented_ | counter | None
+`wmi_ad_ldap_writes_total` | _Not yet documented_ | counter | None
+`wmi_ad_link_values_cleaned_total` | _Not yet documented_ | counter | None
+`wmi_ad_phantom_objects_cleaned_total` | _Not yet documented_ | counter | None
+`wmi_ad_phantom_objects_visited_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_group_membership_evaluations_total` | _Not yet documented_ | counter | `group_type`
+`wmi_ad_sam_group_membership_global_catalog_evaluations_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_group_membership_evaluations_nontransitive_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_group_membership_evaluations_transitive_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_group_evaluation_latency` | _Not yet documented_ | gauge | `evaluation_type`
+`wmi_ad_sam_computer_creation_requests_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_computer_creation_successful_requests_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_user_creation_requests_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_user_creation_successful_requests_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_query_display_requests_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_enumerations_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_membership_changes_total` | _Not yet documented_ | counter | None
+`wmi_ad_sam_password_changes_total` | _Not yet documented_ | counter | None
+`wmi_ad_tombstoned_objects_collected_total` | _Not yet documented_ | counter | None
+`wmi_ad_tombstoned_objects_visited_total` | _Not yet documented_ | counter | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.cpu.md
+++ b/docs/collector.cpu.md
@@ -0,0 +1,31 @@
+# cpu collector
+
+The cpu collector exposes metrics about CPU usage
+
+|||
+-|-
+Metric name prefix  | `cpu`
+Classes             | [`Win32_PerfRawData_PerfOS_Processor`](https://msdn.microsoft.com/en-us/library/aa394317(v=vs.90).aspx)
+Enabled by default? | Yes
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_cpu_cstate_seconds_total` | Time spent in low-power idle states | counter | `core`, `state`
+`wmi_cpu_time_total` | Time that processor spent in different modes (idle, user, system, ...) | counter | `core`, `mode`
+`wmi_cpu_interrupts_total` | Total number of received and serviced hardware interrupts | counter | `core`
+`wmi_cpu_dpcs_total` | Total number of received and serviced deferred procedure calls (DPCs) | counter | `core`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.cs.md
+++ b/docs/collector.cs.md
@@ -0,0 +1,29 @@
+# cs collector
+
+The cs collector exposes metrics detailing the hardware of the computer system
+
+|||
+-|-
+Metric name prefix  | `cs`
+Classes             | [`Win32_ComputerSystem`](https://msdn.microsoft.com/en-us/library/aa394102)
+Enabled by default? | Yes
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_cs_logical_processors` | Number of installed logical processors | gauge | None
+`wmi_cs_physical_memory_bytes` | Total installed physical memory | gauge | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.dns.md
+++ b/docs/collector.dns.md
@@ -0,0 +1,49 @@
+# dns collector
+
+The dns collector exposes metrics about the DNS server
+
+|||
+-|-
+Metric name prefix  | `dns`
+Classes             | [`Win32_PerfRawData_DNS_DNS`](https://technet.microsoft.com/en-us/library/cc977686.aspx)
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_dns_zone_transfer_requests_received_total` | _Not yet documented_ | counter | `qtype`
+`wmi_dns_zone_transfer_requests_sent_total` | _Not yet documented_ | counter | `qtype`
+`wmi_dns_zone_transfer_response_received_total` | _Not yet documented_ | counter | `qtype`
+`wmi_dns_zone_transfer_success_received_total` | _Not yet documented_ | counter | `qtype`, `protocol`
+`wmi_dns_zone_transfer_success_sent_total` | _Not yet documented_ | counter | `qtype`
+`wmi_dns_zone_transfer_failures_total` | _Not yet documented_ | counter | None
+`wmi_dns_memory_used_bytes_total` | _Not yet documented_ | gauge | `area`
+`wmi_dns_dynamic_updates_queued` | _Not yet documented_ | gauge | None
+`wmi_dns_dynamic_updates_received_total` | _Not yet documented_ | counter | `operation`
+`wmi_dns_dynamic_updates_failures_total` | _Not yet documented_ | counter | `reason`
+`wmi_dns_notify_received_total` | _Not yet documented_ | counter | None
+`wmi_dns_notify_sent_total` | _Not yet documented_ | counter | None
+`wmi_dns_secure_update_failures_total` | _Not yet documented_ | counter | None
+`wmi_dns_secure_update_received_total` | _Not yet documented_ | counter | None
+`wmi_dns_queries_total` | _Not yet documented_ | counter | `protocol`
+`wmi_dns_responses_total` | _Not yet documented_ | counter | `protocol`
+`wmi_dns_recursive_queries_total` | _Not yet documented_ | counter | None
+`wmi_dns_recursive_query_failures_total` | _Not yet documented_ | counter | None
+`wmi_dns_recursive_query_send_timeouts_total` | _Not yet documented_ | counter | None
+`wmi_dns_wins_queries_total` | _Not yet documented_ | counter | `direction`
+`wmi_dns_wins_responses_total` | _Not yet documented_ | counter | `direction`
+`wmi_dns_unmatched_responses_total` | _Not yet documented_ | counter | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.hyperv.md
+++ b/docs/collector.hyperv.md
@@ -0,0 +1,102 @@
+# hyperv collector
+
+The hyperv collector exposes metrics about the Hyper-V hypervisor
+
+|||
+-|-
+Metric name prefix  | `hyperv`
+Classes             | `Win32_PerfRawData_VmmsVirtualMachineStats_HyperVVirtualMachineHealthSummary`<br/>`Win32_PerfRawData_VidPerfProvider_HyperVVMVidPartition`<br/>`Win32_PerfRawData_HvStats_HyperVHypervisorRootPartition`<br/>`Win32_PerfRawData_HvStats_HyperVHypervisor`<br/>`Win32_PerfRawData_HvStats_HyperVHypervisorRootVirtualProcessor`<br/>`Win32_PerfRawData_HvStats_HyperVHypervisorVirtualProcessor`<br/>`Win32_PerfRawData_NvspSwitchStats_HyperVVirtualSwitch`<br/>`Win32_PerfRawData_EthernetPerfProvider_HyperVLegacyNetworkAdapter`<br/>`Win32_PerfRawData_Counters_HyperVVirtualStorageDevice`<br/>`Win32_PerfRawData_NvspNicStats_HyperVVirtualNetworkAdapter`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_hyper_health_critical` | _Not yet documented_ | counter | None
+`wmi_hyper_health_ok` | _Not yet documented_ | counter | None
+`wmi_hyper_vid_physical_pages_allocated` | _Not yet documented_ | counter | `vm`
+`wmi_hyper_vid_preferred_numa_node_index` | _Not yet documented_ | counter | `vm`
+`wmi_hyper_vid_remote_physical_pages` | _Not yet documented_ | counter | `vm`
+`wmi_hyper_root_partition_address_spaces` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_attached_devices` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_deposited_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_device_dma_errors` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_device_interrupt_errors` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_device_interrupt_mappings` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_device_interrupt_throttle_events` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_preferred_numa_node_index` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_gpa_space_modifications` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_io_tlb_flush_cost` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_io_tlb_flush` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_recommended_virtual_tlb_size` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_physical_pages_allocated` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_1G_device_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_1G_gpa_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_2M_device_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_2M_gpa_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_4K_device_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_4K_gpa_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_virtual_tlb_flush_entires` | _Not yet documented_ | counter | None
+`wmi_hyper_root_partition_virtual_tlb_pages` | _Not yet documented_ | counter | None
+`wmi_hyper_hypervisor_virtual_processors` | _Not yet documented_ | counter | None
+`wmi_hyper_hypervisor_logical_processors` | _Not yet documented_ | counter | None
+`wmi_hyper_host_cpu_guest_run_time` | _Not yet documented_ | counter | `core`
+`wmi_hyper_host_cpu_hypervisor_run_time` | _Not yet documented_ | counter | `core`
+`wmi_hyper_host_cpu_remote_run_time` | _Not yet documented_ | counter | `core`
+`wmi_hyper_host_cpu_total_run_time` | _Not yet documented_ | counter | `core`
+`wmi_hyper_vm_cpu_guest_run_time` | _Not yet documented_ | counter | `vm`, `core`
+`wmi_hyper_vm_cpu_hypervisor_run_time` | _Not yet documented_ | counter | `vm`, `core`
+`wmi_hyper_vm_cpu_remote_run_time` | _Not yet documented_ | counter | `vm`, `core`
+`wmi_hyper_vm_cpu_total_run_time` | _Not yet documented_ | counter | `vm`, `core`
+`wmi_hyper_vswitch_broadcast_packets_received_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_broadcast_packets_sent_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_bytes_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_bytes_received_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_bytes_sent_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_directed_packets_received_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_directed_packets_send_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_dropped_packets_incoming_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_dropped_packets_outcoming_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_extensions_dropped_packets_incoming_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_extensions_dropped_packets_outcoming_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_learned_mac_addresses_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_multicast_packets_received_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_multicast_packets_sent_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_number_of_send_channel_moves_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_number_of_vmq_moves_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_packets_flooded_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_packets_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_packets_received_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_packets_sent_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_vswitch_purged_mac_addresses_total` | _Not yet documented_ | counter | `vswitch`
+`wmi_hyper_ethernet_bytes_dropped` | _Not yet documented_ | counter | `adapter`
+`wmi_hyper_ethernet_bytes_received` | _Not yet documented_ | counter | `adapter`
+`wmi_hyper_ethernet_bytes_sent` | _Not yet documented_ | counter | `adapter`
+`wmi_hyper_ethernet_frames_dropped` | _Not yet documented_ | counter | `adapter`
+`wmi_hyper_ethernet_frames_received` | _Not yet documented_ | counter | `adapter`
+`wmi_hyper_ethernet_frames_sent` | _Not yet documented_ | counter | `adapter`
+`wmi_hyper_vm_device_error_count` | _Not yet documented_ | counter | `vm_device`
+`wmi_hyper_vm_device_queue_length` | _Not yet documented_ | counter | `vm_device`
+`wmi_hyper_vm_device_bytes_read` | _Not yet documented_ | counter | `vm_device`
+`wmi_hyper_vm_device_operations_read` | _Not yet documented_ | counter | `vm_device`
+`wmi_hyper_vm_device_bytes_written` | _Not yet documented_ | counter | `vm_device`
+`wmi_hyper_vm_device_operations_written` | _Not yet documented_ | counter | `vm_device`
+`wmi_hyper_vm_interface_bytes_received` | _Not yet documented_ | counter | `vm_interface`
+`wmi_hyper_vm_interface_bytes_sent` | _Not yet documented_ | counter | `vm_interface`
+`wmi_hyper_vm_interface_packets_incoming_dropped` | _Not yet documented_ | counter | `vm_interface`
+`wmi_hyper_vm_interface_packets_outgoing_dropped` | _Not yet documented_ | counter | `vm_interface`
+`wmi_hyper_vm_interface_packets_received` | _Not yet documented_ | counter | `vm_interface`
+`wmi_hyper_vm_interface_packets_sent` | _Not yet documented_ | counter | `vm_interface`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.iis.md
+++ b/docs/collector.iis.md
@@ -0,0 +1,140 @@
+# iis collector
+
+The iis collector exposes metrics about the IIS server
+
+|||
+-|-
+Metric name prefix  | `iis`
+Classes             | `Win32_PerfRawData_W3SVC_WebService`<br/>`Win32_PerfRawData_APPPOOLCountersProvider_APPPOOLWAS`<br/>`Win32_PerfRawData_W3SVCW3WPCounterProvider_W3SVCW3WP`<br/>`Win32_PerfRawData_W3SVC_WebServiceCache`
+Enabled by default? | No
+
+## Flags
+
+### `--collector.iis.site-whitelist`
+
+If given, a site needs to match the whitelist regexp in order for the corresponding metrics to be reported.
+
+### `--collector.iis.site-blacklist`
+
+If given, a site needs to *not* match the blacklist regexp in order for the corresponding metrics to be reported.
+
+### `--collector.iis.app-whitelist`
+
+If given, an application needs to match the whitelist regexp in order for the corresponding metrics to be reported.
+
+### `--collector.iis.app-blacklist`
+
+If given, an application needs to *not* match the blacklist regexp in order for the corresponding metrics to be reported.
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_iis_current_anonymous_users` | _Not yet documented_ | counter | `site`
+`wmi_iis_current_blocked_async_io_requests` | _Not yet documented_ | counter | `site`
+`wmi_iis_current_cgi_requests` | _Not yet documented_ | counter | `site`
+`wmi_iis_current_connections` | _Not yet documented_ | counter | `site`
+`wmi_iis_current_isapi_extension_requests` | _Not yet documented_ | counter | `site`
+`wmi_iis_current_non_anonymous_users` | _Not yet documented_ | counter | `site`
+`wmi_iis_received_bytes_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_sent_bytes_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_anonymous_users_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_blocked_async_io_requests_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_cgi_requests_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_connection_attempts_all_instances_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_requests_total` | _Not yet documented_ | counter | `site`, `method`
+`wmi_iis_files_received_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_files_sent_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_ipapi_extension_requests_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_locked_errors_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_logon_attempts_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_non_anonymous_users_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_not_found_errors_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_rejected_async_io_requests_total` | _Not yet documented_ | counter | `site`
+`wmi_iis_current_application_pool_state` | _Not yet documented_ | counter | `app`, `state`
+`wmi_iis_current_application_pool_start_time` | _Not yet documented_ | counter | `app`
+`wmi_iis_current_worker_processes` | _Not yet documented_ | counter | `app`
+`wmi_iis_maximum_worker_processes` | _Not yet documented_ | counter | `app`
+`wmi_iis_recent_worker_process_failures` | _Not yet documented_ | counter | `app`
+`wmi_iis_time_since_last_worker_process_failure` | _Not yet documented_ | counter | `app`
+`wmi_iis_total_application_pool_recycles` | _Not yet documented_ | counter | `app`
+`wmi_iis_total_application_pool_start_time` | _Not yet documented_ | counter | `app`
+`wmi_iis_total_worker_processes_created` | _Not yet documented_ | counter | `app`
+`wmi_iis_total_worker_process_failures` | _Not yet documented_ | counter | `app`
+`wmi_iis_total_worker_process_ping_failures` | _Not yet documented_ | counter | `app`
+`wmi_iis_total_worker_process_shutdown_failures` | _Not yet documented_ | counter | `app`
+`wmi_iis_total_worker_process_startup_failures` | _Not yet documented_ | counter | `app`
+`wmi_iis_worker_cache_active_flushed_entries` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_memory_bytes` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_max_memory_bytes` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_flushes_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_queries_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_hits_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_items` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_items_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_file_cache_items_flushed_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_uri_cache_flushes_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_uri_cache_queries_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_uri_cache_hits_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_uri_cache_items` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_uri_cache_items_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_uri_cache_items_flushed_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_metadata_cache_items` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_metadata_cache_flushes_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_metadata_cache_queries_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_metadata_cache_hits_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_metadata_cache_items_cached_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_metadata_cache_items_flushed_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_output_cache_active_flushed_items` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_output_cache_items` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_output_cache_memory_bytes` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_output_queries_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_output_cache_hits_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_output_cache_items_flushed_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_output_cache_flushes_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_threads` | _Not yet documented_ | counter | `app`, `pid`, `state`
+`wmi_iis_worker_max_threads` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_requests_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_current_requests` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_request_errors_total` | _Not yet documented_ | counter | `app`, `pid`, `status_code`
+`wmi_iis_worker_current_websocket_requests` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_websocket_connection_attempts_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_websocket_connection_accepted_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_worker_websocket_connection_rejected_total` | _Not yet documented_ | counter | `app`, `pid`
+`wmi_iis_server_cache_active_flushed_entries` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_memory_bytes` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_max_memory_bytes` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_flushes_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_queries_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_hits_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_items` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_items_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_file_cache_items_flushed_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_uri_cache_flushes_total` | _Not yet documented_ | counter | `mode`
+`wmi_iis_server_uri_cache_queries_total` | _Not yet documented_ | counter | `mode`
+`wmi_iis_server_uri_cache_hits_total` | _Not yet documented_ | counter | `mode`
+`wmi_iis_server_uri_cache_items` | _Not yet documented_ | counter | `mode`
+`wmi_iis_server_uri_cache_items_total` | _Not yet documented_ | counter | `mode`
+`wmi_iis_server_uri_cache_items_flushed_total` | _Not yet documented_ | counter | `mode`
+`wmi_iis_server_metadata_cache_items` | _Not yet documented_ | counter | None
+`wmi_iis_server_metadata_cache_flushes_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_metadata_cache_queries_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_metadata_cache_hits_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_metadata_cache_items_cached_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_metadata_cache_items_flushed_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_output_cache_active_flushed_items` | _Not yet documented_ | counter | None
+`wmi_iis_server_output_cache_items` | _Not yet documented_ | counter | None
+`wmi_iis_server_output_cache_memory_bytes` | _Not yet documented_ | counter | None
+`wmi_iis_server_output_cache_queries_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_output_cache_hits_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_output_cache_items_flushed_total` | _Not yet documented_ | counter | None
+`wmi_iis_server_output_cache_flushes_total` | _Not yet documented_ | counter | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.logical_disk.md
+++ b/docs/collector.logical_disk.md
@@ -0,0 +1,44 @@
+# logical_disk collector
+
+The logical_disk collector exposes metrics about logical disks (in contrast to physical disks)
+
+|||
+-|-
+Metric name prefix  | `logical_disk`
+Classes             | [`Win32_PerfRawData_PerfDisk_LogicalDisk`](https://msdn.microsoft.com/en-us/windows/hardware/aa394307(v=vs.71))
+Enabled by default? | Yes
+
+## Flags
+
+### `--collector.logical_disk.volume-whitelist`
+
+If given, a disk needs to match the whitelist regexp in order for the corresponding disk metrics to be reported
+
+### `--collector.logical_disk.volume-blacklist`
+
+If given, a disk needs to *not* match the blacklist regexp in order for the corresponding disk metrics to be reported
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`requests_queued` | _Not yet documented_ | gauge | `volume`
+`read_bytes_total` | _Not yet documented_ | counter | `volume`
+`reads_total` | _Not yet documented_ | counter | `volume`
+`write_bytes_total` | _Not yet documented_ | counter | `volume`
+`writes_total` | _Not yet documented_ | counter | `volume`
+`read_seconds_total` | _Not yet documented_ | counter | `volume`
+`write_seconds_total` | _Not yet documented_ | counter | `volume`
+`free_bytes` | _Not yet documented_ | gauge | `volume`
+`size_bytes` | _Not yet documented_ | gauge | `volume`
+`idle_seconds_total` | _Not yet documented_ | counter | `volume`
+`split_ios_total` | _Not yet documented_ | counter | `volume`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.memory.md
+++ b/docs/collector.memory.md
@@ -0,0 +1,59 @@
+# memory collector
+
+The memory collector exposes metrics about system memory usage
+
+Metric name prefix  | `memory`
+Classes             | `Win32_PerfRawData_PerfOS_Memory`
+Enabled by default? | Yes
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_cs_logical_processors` | Number of installed logical processors | gauge | None
+`wmi_cs_physical_memory_bytes` | Total installed physical memory | gauge | None
+`wmi_memory_available_bytes` | The amount of physical memory immediately available for allocation to a process or for system use. It is equal to the sum of memory assigned to the standby (cached), free and zero page lists | gauge | None
+`wmi_memory_cache_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_cache_bytes_peak` | _Not yet documented_ | gauge | None
+`wmi_memory_cache_faults_total` | _Not yet documented_ | gauge | None
+`wmi_memory_commit_limit` | _Not yet documented_ | gauge | None
+`wmi_memory_committed_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_demand_zero_faults_total` | The number of zeroed pages required to satisfy faults. Zeroed pages, pages emptied of previously stored data and filled with zeros, are a security feature of Windows that prevent processes from seeing data stored by earlier processes that used the memory space | gauge | None
+`wmi_memory_free_and_zero_page_list_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_free_system_page_table_entries` | _Not yet documented_ | gauge | None
+`wmi_memory_modified_page_list_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_page_faults_total` | _Not yet documented_ | gauge | None
+`wmi_memory_swap_page_reads_total` | Number of disk page reads (a single read operation reading several pages is still only counted once) | gauge | None
+`wmi_memory_swap_pages_read_total` | Number of pages read across all page reads (ie counting all pages read even if they are read in a single operation) | gauge | None
+`wmi_memory_swap_pages_written_total` | Number of pages written across all page writes (ie counting all pages written even if they are written in a single operation) | gauge | None
+`wmi_memory_swap_page_operations_total` | Total number of swap page read and writes (PagesPersec) | gauge | None
+`wmi_memory_swap_page_writes_total` | Number of disk page writes (a single write operation writing several pages is still only counted once) | gauge | None
+`wmi_memory_pool_nonpaged_allocs_total` | The number of calls to allocate space in the nonpaged pool. The nonpaged pool is an area of system memory area for objects that cannot be written to disk, and must remain in physical memory as long as they are allocated | gauge | None
+`wmi_memory_pool_nonpaged_bytes_total` | _Not yet documented_ | gauge | None
+`wmi_memory_pool_paged_allocs_total` | _Not yet documented_ | gauge | None
+`wmi_memory_pool_paged_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_pool_paged_resident_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_standby_cache_core_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_standby_cache_normal_priority_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_standby_cache_reserve_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_system_cache_resident_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_system_code_resident_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_system_code_total_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_system_driver_resident_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_system_driver_total_bytes` | _Not yet documented_ | gauge | None
+`wmi_memory_transition_faults_total` | _Not yet documented_ | gauge | None
+`wmi_memory_transition_pages_repurposed_total` | _Not yet documented_ | gauge | None
+`wmi_memory_write_copies_total` | The number of page faults caused by attempting to write that were satisfied by copying the page from elsewhere in physical memory | gauge | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.msmq.md
+++ b/docs/collector.msmq.md
@@ -0,0 +1,33 @@
+# msmq collector
+
+The msmq collector exposes metrics about the queues on a MSMQ server
+
+|||
+-|-
+Metric name prefix  | `msmq`
+Classes             | `Win32_PerfRawData_MSMQ_MSMQQueue`
+Enabled by default? | No
+
+## Flags
+
+### `--collector.msmq.msmq-where`
+
+A WMI filter on which queues to include. `%` is a wildcard, and can be used to match on substrings.
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_msmq_bytes_in_journal_queue` | Size of queue journal in bytes | gauge | `name`
+`wmi_msmq_bytes_in_queue` | Size of queue in bytes | gauge | `name`
+`wmi_msmq_messages_in_journal_queue` | Count messages in queue journal | gauge | `name`
+`wmi_msmq_messages_in_queue` | Count messages in queue | gauge | `name`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.mssql.md
+++ b/docs/collector.mssql.md
@@ -0,0 +1,241 @@
+# mssql collector
+
+The mssql collector exposes metrics about the MSSQL server
+
+|||
+-|-
+Metric name prefix  | `mssql`
+Classes             | [`Win32_PerfRawData_MSSQLSERVER_SQLServerAccessMethods`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-access-methods-object)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerAvailabilityReplica`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-availability-replica)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerBufferManager`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-buffer-manager-object)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerDatabaseReplica`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-database-replica)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerDatabases`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-databases-object?view=sql-server-2017)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerGeneralStatistics`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-general-statistics-object)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerLocks`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-locks-object)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerMemoryManager`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-memory-manager-object)<br/>[`Win32_PerfRawData_MSSQLSERVER_SQLServerSQLStatistics`](https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-sql-statistics-object)
+Enabled by default? | No
+
+## Flags
+
+### `--collectors.mssql.classes-enabled`
+
+Comma-separated list of MSSQL WMI classes to use. Supported values are `accessmethods`, `availreplica`, `bufman`, `databases`, `dbreplica`, `genstats`, `locks`, `memmgr` and `sqlstats`.
+
+### `--collectors.mssql.class-print`
+
+If true, print available mssql WMI classes and exit.  Only displays if the mssql collector is enabled.
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_mssql_collector_duration_seconds` | The time taken for each sub-collector to return | counter | `collector`, `instance`
+`wmi_mssql_collector_success` | 1 if sub-collector succeeded, 0 otherwise | counter | `collector`, `instance`
+`wmi_mssql_accessmethods_au_batch_cleanups` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_au_cleanups` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_by_reference_lob_creates` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_by_reference_lob_uses` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_lob_read_aheads` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_column_value_pulls` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_column_value_pushes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_deferred_dropped_aus` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_deferred_dropped_rowsets` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_dropped_rowset_cleanups` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_dropped_rowset_skips` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_extent_deallocations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_extent_allocations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_au_batch_cleanup_failures` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_leaf_page_cookie_failures` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_tree_page_cookie_failures` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_forwarded_records` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_free_space_page_fetches` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_free_space_scans` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_full_scans` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_index_searches` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_insysxact_waits` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_lob_handle_creates` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_lob_handle_destroys` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_lob_ss_provider_creates` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_lob_ss_provider_destroys` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_lob_ss_provider_truncations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_mixed_page_allocations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_page_compression_attempts` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_page_deallocations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_page_allocations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_page_compressions` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_page_splits` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_probe_scans` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_range_scans` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_scan_point_revalidations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_ghost_record_skips` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_table_lock_escalations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_leaf_page_cookie_uses` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_tree_page_cookie_uses` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_workfile_creates` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_worktables_creates` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_accessmethods_worktables_from_cache_ratio` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_availreplica_received_from_replica_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_sent_to_replica_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_sent_to_transport_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_initiated_flow_controls` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_flow_control_wait_seconds` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_receives_from_replica` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_resent_messages` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_sends_to_replica` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_availreplica_sends_to_transport` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_bufman_background_writer_pages` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_buffer_cache_hit_ratio` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_checkpoint_pages` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_database_pages` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_allocated_pages` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_free_pages` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_in_use_as_percentage` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_outstanding_io` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_page_evictions` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_page_reads` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_page_unreferenced_seconds` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_extension_page_writes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_free_list_stalls` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_integral_controller_slope` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_lazywrites` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_page_life_expectancy_seconds` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_page_lookups` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_page_reads` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_page_writes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_read_ahead_pages` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_read_ahead_issuing_seconds` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_bufman_target_pages` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_dbreplica_database_flow_control_wait_seconds` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_database_initiated_flow_controls` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_received_file_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_group_commits` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_group_commit_stall_seconds` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_apply_pending_queue` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_apply_ready_queue` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_compressed_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_decompressed_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_received_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_compression_cachehits` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_compression_cachemisses` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_compressions` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_decompressions` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_remaining_for_undo` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_log_send_queue` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_mirrored_write_transactions` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_recovery_queue_records` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_redo_blocks` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_redo_remaining_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_redone_bytes` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_redones` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_total_log_requiring_undo` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_dbreplica_transaction_delay_seconds` | _Not yet documented_ | counter | `instance`, `replica`
+`wmi_mssql_databases_active_transactions` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_backup_restore_operations` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_bulk_copy_rows` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_bulk_copy_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_commit_table_entries` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_data_files_size_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_dbcc_logical_scan_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_group_commit_stall_seconds` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_flushed_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_cache_hit_ratio` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_cache_reads` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_files_size_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_files_used_size_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_flushes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_flush_waits` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_flush_wait_seconds` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_flush_write_seconds` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_growths` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_cache_misses` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_disk_reads` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_hash_deletes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_hash_inserts` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_invalid_hash_entries` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_log_scan_pushes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_log_writer_pushes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_empty_free_pool_pushes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_low_memory_pushes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_no_free_buffer_pushes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_req_behind_trunc` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_requests_old_vlf` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_requests` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_total_active_log_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_pool_total_shared_pool_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_shrinks` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_truncations` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_log_used_percent` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_pending_repl_transactions` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_repl_transactions` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_shrink_data_movement_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_tracked_transactions` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_transactions` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_write_transactions` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_xtp_controller_dlc_fetch_latency_seconds` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_xtp_controller_dlc_peak_latency_seconds` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_xtp_controller_log_processed_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_databases_xtp_memory_used_bytes` | _Not yet documented_ | counter | `instance`, `database`
+`wmi_mssql_genstats_active_temp_tables` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_connection_resets` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_event_notifications_delayed_drop` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_http_authenticated_requests` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_logical_connections` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_logins` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_logouts` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_mars_deadlocks` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_non_atomic_yields` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_blocked_processes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_soap_empty_requests` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_soap_method_invocations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_soap_session_initiate_requests` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_soap_session_terminate_requests` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_soapsql_requests` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_soapwsdl_requests` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_sql_trace_io_provider_lock_waits` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_tempdb_recovery_unit_ids_generated` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_tempdb_rowset_ids_generated` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_temp_tables_creations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_temp_tables_awaiting_destruction` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_trace_event_notification_queue_size` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_transactions` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_genstats_user_connections` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_locks_average_wait_seconds` | _Not yet documented_ | counter | `instance`, `resource`
+`wmi_mssql_locks_lock_requests` | _Not yet documented_ | counter | `instance`, `resource`
+`wmi_mssql_locks_lock_timeouts` | _Not yet documented_ | counter | `instance`, `resource`
+`wmi_mssql_locks_lock_timeouts_excluding_NOWAIT` | _Not yet documented_ | counter | `instance`, `resource`
+`wmi_mssql_locks_lock_waits` | _Not yet documented_ | counter | `instance`, `resource`
+`wmi_mssql_locks_lock_wait_seconds` | _Not yet documented_ | counter | `instance`, `resource`
+`wmi_mssql_locks_deadlocks` | _Not yet documented_ | counter | `instance`, `resource`
+`wmi_mssql_memmgr_connection_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_database_cache_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_external_benefit_of_memory` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_free_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_granted_workspace_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_lock_blocks` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_allocated_lock_blocks` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_lock_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_lock_owner_blocks` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_allocated_lock_owner_blocks` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_log_pool_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_maximum_workspace_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_outstanding_memory_grants` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_pending_memory_grants` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_optimizer_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_reserved_server_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_sql_cache_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_stolen_server_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_target_server_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_memmgr_total_server_memory_bytes` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_auto_parameterization_attempts` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_batch_requests` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_failed_auto_parameterization_attempts` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_forced_parameterizations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_guided_plan_executions` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_misguided_plan_executions` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_safe_auto_parameterization_attempts` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_sql_attentions` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_sql_compilations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_sql_recompilations` | _Not yet documented_ | counter | `instance`
+`wmi_mssql_sqlstats_unsafe_auto_parameterization_attempts` | _Not yet documented_ | counter | `instance`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.net.md
+++ b/docs/collector.net.md
@@ -0,0 +1,45 @@
+# net collector
+
+The net collector exposes metrics about network interfaces
+
+|||
+-|-
+Metric name prefix  | `net`
+Classes             | [`Win32_PerfRawData_Tcpip_NetworkInterface`](https://technet.microsoft.com/en-us/security/aa394340(v=vs.80))
+Enabled by default? | Yes
+
+## Flags
+
+### `--collector.net.nic-whitelist`
+
+If given, an interface name needs to match the whitelist regexp in order for the corresponding metrics to be reported
+
+### `--collector.net.nic-blacklist`
+
+If given, an interface name needs to *not* match the blacklist regexp in order for the corresponding metrics to be reported
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_net_bytes_received_total` | _Not yet documented_ | counter | `nic`
+`wmi_net_bytes_sent_total` | _Not yet documented_ | counter | `nic`
+`wmi_net_bytes_total` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_outbound_discarded` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_outbound_errors` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_received_discarded` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_received_errors` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_received_total` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_received_unknown` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_total` | _Not yet documented_ | counter | `nic`
+`wmi_net_packets_sent_total` | _Not yet documented_ | counter | `nic`
+`wmi_net_current_bandwidth` | _Not yet documented_ | counter | `nic`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrexceptions.md
+++ b/docs/collector.netframework_clrexceptions.md
@@ -0,0 +1,32 @@
+# netframework_clrexceptions collector
+
+The netframework_clrexceptions collector exposes metrics about CLR exceptions in the dotnet framework.
+
+|||
+-|-
+Metric name prefix  | `netframework_clrexceptions`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRExceptions`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_...` | ... | counter/gauge/histogram/summary | ...
+`wmi_netframework_clrexceptions_exceptions_thrown_total` | Displays the total number of exceptions thrown since the application started. This includes both .NET exceptions and unmanaged exceptions that are converted into .NET exceptions. | counter | `process`
+`wmi_netframework_clrexceptions_exceptions_filters_total` | Displays the total number of .NET exception filters executed. An exception filter evaluates regardless of whether an exception is handled. | counter | `process`
+`wmi_netframework_clrexceptions_exceptions_finallys_total` | Displays the total number of finally blocks executed. Only the finally blocks executed for an exception are counted; finally blocks on normal code paths are not counted by this counter. | counter | `process`
+`wmi_netframework_clrexceptions_throw_to_catch_depth_total` | Displays the total number of stack frames traversed, from the frame that threw the exception to the frame that handled the exception. | counter | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrinterop.md
+++ b/docs/collector.netframework_clrinterop.md
@@ -0,0 +1,31 @@
+# netframework_clrinterop collector
+
+The netframework_clrinterop collector exposes metrics about interop between the dotnet framework and outside components.
+
+|||
+-|-
+Metric name prefix  | `netframework_clrinterop`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRInterop`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_...` | ... | counter/gauge/histogram/summary | ...
+`wmi_netframework_clrinterop_com_callable_wrappers_total` | Displays the current number of COM callable wrappers (CCWs). A CCW is a proxy for a managed object being referenced from an unmanaged COM client. | counter | `process`
+`wmi_netframework_clrinterop_interop_marshalling_total` | Displays the total number of times arguments and return values have been marshaled from managed to unmanaged code, and vice versa, since the application started. | counter | `process`
+`wmi_netframework_clrinterop_interop_stubs_created_total` | Displays the current number of stubs created by the common language runtime. Stubs are responsible for marshaling arguments and return values from managed to unmanaged code, and vice versa, during a COM interop call or a platform invoke call. | counter | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrjit.md
+++ b/docs/collector.netframework_clrjit.md
@@ -0,0 +1,32 @@
+# netframework_clrjit collector
+
+The netframework_clrjit collector exposes metrics about the dotnet Just-in-Time compiler.
+
+|||
+-|-
+Metric name prefix  | `netframework_clrjit`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRJit`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_...` | ... | counter/gauge/histogram/summary | ...
+`wmi_netframework_clrjit_jit_methods_total` | Displays the total number of methods JIT-compiled since the application started. This counter does not include pre-JIT-compiled methods. | counter | `process`
+`wmi_netframework_clrjit_jit_time_percent` | Displays the percentage of time spent in JIT compilation. This counter is updated at the end of every JIT compilation phase. A JIT compilation phase occurs when a method and its dependencies are compiled. | gauge | `process`
+`wmi_netframework_clrjit_jit_standard_failures_total` | Displays the peak number of methods the JIT compiler has failed to compile since the application started. This failure can occur if the MSIL cannot be verified or if there is an internal error in the JIT compiler. | counter | `process`
+`wmi_netframework_clrjit_jit_il_bytes_total` | Displays the total number of Microsoft intermediate language (MSIL) bytes compiled by the just-in-time (JIT) compiler since the application started | counter | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrloading.md
+++ b/docs/collector.netframework_clrloading.md
@@ -0,0 +1,37 @@
+# netframework_clrloading collector
+
+The netframework_clrloading collector exposes metrics about the dotnet loader.
+
+|||
+-|-
+Metric name prefix  | `netframework_clrloading`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRLoading`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_...` | ... | counter/gauge/histogram/summary | ...
+`wmi_netframework_clrloading_loader_heap_size_bytes` | Displays the current size, in bytes, of the memory committed by the class loader across all application domains. Committed memory is the physical space reserved in the disk paging file. | gauge | `process`
+`wmi_netframework_clrloading_appdomains_loaded_current` | Displays the current number of application domains loaded in this application. | gauge | `process`
+`wmi_netframework_clrloading_assemblies_loaded_current` | Displays the current number of assemblies loaded across all application domains in the currently running application. If the assembly is loaded as domain-neutral from multiple application domains, this counter is incremented only once. | gauge | `process`
+`wmi_netframework_clrloading_classes_loaded_current` | Displays the current number of classes loaded in all assemblies. | gauge | `process`
+`wmi_netframework_clrloading_appdomains_loaded_total` | Displays the peak number of application domains loaded since the application started. | counter | `process`
+`wmi_netframework_clrloading_appdomains_unloaded_total` | Displays the total number of application domains unloaded since the application started. If an application domain is loaded and unloaded multiple times, this counter increments each time the application domain is unloaded. | counter | `process`
+`wmi_netframework_clrloading_assemblies_loaded_total` | Displays the total number of assemblies loaded since the application started. If the assembly is loaded as domain-neutral from multiple application domains, this counter is incremented only once. | counter | `process`
+`wmi_netframework_clrloading_classes_loaded_total` | Displays the cumulative number of classes loaded in all assemblies since the application started. | counter | `process`
+`wmi_netframework_clrloading_class_load_failures_total` | Displays the peak number of classes that have failed to load since the application started. | counter | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrlocksandthreads.md
+++ b/docs/collector.netframework_clrlocksandthreads.md
@@ -0,0 +1,35 @@
+# netframework_clrlocksandthreads collector
+
+The netframework_clrlocksandthreads collector exposes metrics about locks and threads in dotnet applications.
+
+|||
+-|-
+Metric name prefix  | `netframework_clrlocksandthreads`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRLocksAndThreads`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_...` | ... | counter/gauge/histogram/summary | ...
+`wmi_netframework_clrlocksandthreads_current_queue_length` | Displays the total number of threads that are currently waiting to acquire a managed lock in the application. | gauge | `process`
+`wmi_netframework_clrlocksandthreads_current_logical_threads` | Displays the number of current managed thread objects in the application. This counter maintains the count of both running and stopped threads.  | gauge | `process`
+`wmi_netframework_clrlocksandthreads_physical_threads_current` | Displays the number of native operating system threads created and owned by the common language runtime to act as underlying threads for managed thread objects. This counter's value does not include the threads used by the runtime in its internal operations; it is a subset of the threads in the operating system process. | gauge | `process`
+`wmi_netframework_clrlocksandthreads_recognized_threads_current` | Displays the number of threads that are currently recognized by the runtime. These threads are associated with a corresponding managed thread object. The runtime does not create these threads, but they have run inside the runtime at least once. | gauge | `process`
+`wmi_netframework_clrlocksandthreads_recognized_threads_total` | Displays the total number of threads that have been recognized by the runtime since the application started. These threads are associated with a corresponding managed thread object. The runtime does not create these threads, but they have run inside the runtime at least once. | counter | `process`
+`wmi_netframework_clrlocksandthreads_queue_length_total` | Displays the total number of threads that waited to acquire a managed lock since the application started. | counter | `process`
+`wmi_netframework_clrlocksandthreads_contentions_total` | Displays the total number of times that threads in the runtime have attempted to acquire a managed lock unsuccessfully. | counter | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrmemory.md
+++ b/docs/collector.netframework_clrmemory.md
@@ -0,0 +1,40 @@
+# netframework_clrmemory collector
+
+The netframework_clrmemory collector exposes metrics about memory in dotnet applications.
+
+|||
+-|-
+Metric name prefix  | `netframework_clrmemory`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRMemory`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_...` | ... | counter/gauge/histogram/summary | ...
+`wmi_netframework_clrmemory_allocated_bytes_total` | Displays the total number of bytes allocated on the garbage collection heap. | counter | `process`
+`wmi_netframework_clrmemory_finalization_survivors` | Displays the number of garbage-collected objects that survive a collection because they are waiting to be finalized. | gauge | `process`
+`wmi_netframework_clrmemory_heap_size_bytes` | Displays the maximum bytes that can be allocated; it does not indicate the current number of bytes allocated. | gauge | `process`
+`wmi_netframework_clrmemory_promoted_bytes` | Displays the bytes that were promoted from the generation to the next one during the last GC. Memory is promoted when it survives a garbage collection. | gauge | `process`
+`wmi_netframework_clrmemory_number_gc_handles` | Displays the current number of garbage collection handles in use. Garbage collection handles are handles to resources external to the common language runtime and the managed environment. | gauge | `process`
+`wmi_netframework_clrmemory_collections_total` | Displays the number of times the generation objects are garbage collected since the application started. | counter | `process`
+`wmi_netframework_clrmemory_induced_gc_total` | Displays the peak number of times garbage collection was performed because of an explicit call to GC.Collect. | counter | `process`
+`wmi_netframework_clrmemory_number_pinned_objects` | Displays the number of pinned objects encountered in the last garbage collection. | gauge | `process`
+`wmi_netframework_clrmemory_number_sink_blocksinuse` | Displays the current number of synchronization blocks in use. Synchronization blocks are per-object data structures allocated for storing synchronization information. They hold weak references to managed objects and must be scanned by the garbage collector. | gauge | `process`
+`wmi_netframework_clrmemory_committed_bytes` | Displays the amount of virtual memory, in bytes, currently committed by the garbage collector. Committed memory is the physical memory for which space has been reserved in the disk paging file. | gauge | `process`
+`wmi_netframework_clrmemory_reserved_bytes` | Displays the amount of virtual memory, in bytes, currently reserved by the garbage collector. Reserved memory is the virtual memory space reserved for the application when no disk or main memory pages have been used. | gauge | `process`
+`wmi_netframework_clrmemory_gc_time_percent` | Displays the percentage of time that was spent performing a garbage collection in the last sample. | gauge | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrremoting.md
+++ b/docs/collector.netframework_clrremoting.md
@@ -0,0 +1,33 @@
+# netframework_clrremoting collector
+
+The netframework_clrremoting collector exposes metrics about dotnet remoting.
+
+|||
+-|-
+Metric name prefix  | `netframework_clrremoting`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRRemoting`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_netframework_clrremoting_channels_total` | Displays the total number of remoting channels registered across all application domains since application started. | counter | `process`
+`wmi_netframework_clrremoting_context_bound_classes_loaded` | Displays the current number of context-bound classes that are loaded. | gauge | `process`
+`wmi_netframework_clrremoting_context_bound_objects_total` | Displays the total number of context-bound objects allocated. | counter | `process`
+`wmi_netframework_clrremoting_context_proxies_total` | Displays the total number of remoting proxy objects in this process since it started. | counter | `process`
+`wmi_netframework_clrremoting_contexts` | Displays the current number of remoting contexts in the application. | gauge | `process`
+`wmi_netframework_clrremoting_remote_calls_total` | Displays the total number of remote procedure calls invoked since the application started. | counter | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.netframework_clrsecurity.md
+++ b/docs/collector.netframework_clrsecurity.md
@@ -0,0 +1,31 @@
+# netframework_clrsecurity collector
+
+The netframework_clrsecurity collector exposes metrics about security checks in dotnet applications
+
+|||
+-|-
+Metric name prefix  | `netframework_clrsecurity`
+Classes             | `Win32_PerfRawData_NETFramework_NETCLRSecurity`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_netframework_clrsecurity_link_time_checks_total` | Displays the total number of link-time code access security checks since the application started. | counter | `process`
+`wmi_netframework_clrsecurity_rt_checks_time_percent` | Displays the percentage of time spent performing runtime code access security checks in the last sample. | gauge | `process`
+`wmi_netframework_clrsecurity_stack_walk_depth` | Displays the depth of the stack during that last runtime code access security check. | gauge | `process`
+`wmi_netframework_clrsecurity_runtime_checks_total` | Displays the total number of runtime code access security checks performed since the application started. | counter | `process`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.os.md
+++ b/docs/collector.os.md
@@ -0,0 +1,39 @@
+# os collector
+
+The os collector exposes metrics about the operating system
+
+|||
+-|-
+Metric name prefix  | `os`
+Classes             | [`Win32_OperatingSystem`](https://msdn.microsoft.com/en-us/library/aa394239)
+Enabled by default? | Yes
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_os_paging_limit_bytes` | _Not yet documented_ | gauge | None
+`wmi_os_paging_free_bytes` | _Not yet documented_ | gauge | None
+`wmi_os_physical_memory_free_bytes` | _Not yet documented_ | gauge | None
+`wmi_os_time` | _Not yet documented_ | gauge | None
+`wmi_os_timezone` | _Not yet documented_ | gauge | `timezone`
+`wmi_os_processes` | _Not yet documented_ | gauge | None
+`wmi_os_processes_limit` | _Not yet documented_ | gauge | None
+`wmi_os_process_memory_limix_bytes` | _Not yet documented_ | gauge | None
+`wmi_os_users` | _Not yet documented_ | gauge | None
+`wmi_os_virtual_memory_bytes` | _Not yet documented_ | gauge | None
+`wmi_os_visible_memory_bytes` | _Not yet documented_ | gauge | None
+`wmi_os_virtual_memory_free_bytes` | _Not yet documented_ | gauge | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.process.md
+++ b/docs/collector.process.md
@@ -0,0 +1,46 @@
+# process collector
+
+The process collector exposes metrics about processes
+
+|||
+-|-
+Metric name prefix  | `process`
+Classes             | [`Win32_PerfRawData_PerfProc_Process`](https://msdn.microsoft.com/en-us/library/aa394323(v=vs.85).aspx)
+Enabled by default? | No
+
+## Flags
+
+### `--collector.process.processes-where`
+
+A WMI filter on which processes to include. Recommended to keep down number of returned metrics.
+
+`%` is a wildcard, and can be used to match on substrings.
+
+Example: `--collector.process.processes-where="Name LIKE 'firefox%'`
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_process_start_time` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_cpu_time_total` | _Not yet documented_ | counter | `process`, `process_id`, `creating_process_id`
+`wmi_process_handle_count` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_io_bytes_total` | _Not yet documented_ | counter | `process`, `process_id`, `creating_process_id`
+`wmi_process_io_operations_total` | _Not yet documented_ | counter | `process`, `process_id`, `creating_process_id`
+`wmi_process_page_faults_total` | _Not yet documented_ | counter | `process`, `process_id`, `creating_process_id`
+`wmi_process_page_file_bytes` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_pool_bytes` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_priority_base` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_private_bytes` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_thread_count` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_virtual_bytes` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+`wmi_process_working_set` | _Not yet documented_ | gauge | `process`, `process_id`, `creating_process_id`
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.service.md
+++ b/docs/collector.service.md
@@ -0,0 +1,75 @@
+# service collector
+
+The service collector exposes metrics about Windows Services
+
+|||
+-|-
+Metric name prefix  | `service`
+Classes             | [`Win32_Service`](https://msdn.microsoft.com/en-us/library/aa394418(v=vs.85).aspx)
+Enabled by default? | Yes
+
+## Flags
+
+### `--collector.service.services-where`
+
+A WMI filter on which services to include. Recommended to keep down number of returned metrics.
+
+Example: `--collector.service.services-where="Name='wmi_exporter'"`
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_service_state` | The state of the service, 1 if the current state, 0 otherwise | gauge | name, state
+`wmi_service_start_mode` | The start mode of the service, 1 if the current start mode, 0 otherwise | gauge | name, start_mode
+`wmi_service_status` | The status of the service, 1 if the current status, 0 otherwise | gauge | name, status
+
+For the values of the `state`, `start_mode` and `status` labels, see below.
+
+### States
+
+A service can be in the following states:
+- `stopped`
+- `start pending`
+- `stop pending`
+- `running`
+- `continue pending`
+- `pause pending`
+- `paused`
+- `unknown`
+
+### Start modes
+
+A service can have the following start modes:
+- `boot`
+- `system`
+- `auto`
+- `manual`
+- `disabled`
+
+### Status
+
+A service can have any of the following statuses:
+- `ok`
+- `error`
+- `degraded`
+- `unknown`
+- `pred fail`
+- `starting`
+- `stopping`
+- `service`
+- `stressed`
+- `nonrecover`
+- `no contact`
+- `lost comm`
+
+Note that there is some overlap with service state.
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.system.md
+++ b/docs/collector.system.md
@@ -0,0 +1,33 @@
+# system collector
+
+The system collector exposes metrics about ...
+
+|||
+-|-
+Metric name prefix  | `system`
+Classes             | [`Win32_PerfRawData_PerfOS_System`](https://web.archive.org/web/20050830140516/http://msdn.microsoft.com/library/en-us/wmisdk/wmi/win32_perfrawdata_perfos_system.asp)
+Enabled by default? | Yes
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_system_context_switches_total` | _Not yet documented_ | counter | None
+`wmi_system_exception_dispatches_total` | _Not yet documented_ | counter | None
+`wmi_system_processor_queue_length` | _Not yet documented_ | gauge | None
+`wmi_system_system_calls_total` | _Not yet documented_ | counter | None
+`wmi_system_system_up_time` | _Not yet documented_ | gauge | None
+`wmi_system_threads` | _Not yet documented_ | gauge | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.tcp.md
+++ b/docs/collector.tcp.md
@@ -0,0 +1,36 @@
+# tcp collector
+
+The tcp collector exposes metrics about the TCP/IPv4 network stack.
+
+|||
+-|-
+Metric name prefix  | `tcp`
+Classes             | [`Win32_PerfRawData_Tcpip_TCPv4`](https://msdn.microsoft.com/en-us/library/aa394341(v=vs.85).aspx)
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_tcp_connection_failures` | _Not yet documented_ | counter | None
+`wmi_tcp_connections_active` | _Not yet documented_ | counter | None
+`wmi_tcp_connections_established` | _Not yet documented_ | counter | None
+`wmi_tcp_connections_passive` | _Not yet documented_ | counter | None
+`wmi_tcp_connections_reset` | _Not yet documented_ | counter | None
+`wmi_tcp_segments_total` | _Not yet documented_ | counter | None
+`wmi_tcp_segments_received_total` | _Not yet documented_ | counter | None
+`wmi_tcp_segments_retransmitted_total` | _Not yet documented_ | counter | None
+`wmi_tcp_segments_sent_total` | _Not yet documented_ | counter | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/docs/collector.textfile.md
+++ b/docs/collector.textfile.md
@@ -0,0 +1,56 @@
+# textfile collector
+
+The textfile collector exposes metrics from files written by other processes.
+
+|||
+-|-
+Metric name prefix  | `textfile`
+Classes             | None
+Enabled by default? | Yes
+
+## Flags
+
+### `--collector.textfile.directory`
+
+The directory containing the files to be ingested. Only files with the extension `.prom` are read.
+
+Default value: `C:\Program Files\wmi_exporter\textfile_inputs`
+
+Required: No
+
+## Metrics
+
+Metrics will primarily come from the files on disk. The below listed metrics
+are collected to give information about the reading of the metrics themselves.
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_textfile_scrape_error` | 1 if there was an error opening or reading a file, 0 otherwise | gauge | None
+`wmi_textfile_mtime_seconds` | Unix epoch-formatted mtime (modified time) of textfiles successfully read | gauge | file
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
+
+# Example use
+This Powershell script, when run in the `collector.textfile.directory` (default `C:\Program Files\wmi_exporter\textfile_inputs`), generates a valid `.prom` file that should successfully ingested by wmi_exporter.
+
+```Powershell
+$alpha = 42
+$beta = @{ left=3.1415; right=2.718281828; }
+
+Set-Content -Path test1.prom -Encoding Ascii -NoNewline -Value ""
+Add-Content -Path test1.prom -Encoding Ascii -NoNewline -Value "# HELP test_alpha_total Some random metric.`n"
+Add-Content -Path test1.prom -Encoding Ascii -NoNewline -Value "# TYPE test_alpha_total counter`n"
+Add-Content -Path test1.prom -Encoding Ascii -NoNewline -Value "test_alpha_total ${alpha}`n"
+Add-Content -Path test1.prom -Encoding Ascii -NoNewline -Value "# HELP test_beta_bytes Some other metric.`n"
+Add-Content -Path test1.prom -Encoding Ascii -NoNewline -Value "# TYPE test_beta_bytes gauge`n"
+foreach ($k in $beta.Keys) {
+  Add-Content -Path test1.prom -Encoding Ascii -NoNewline -Value "test_beta_bytes{spin=""${k}""} $( $beta[$k] )`n"
+}
+```
--- a/docs/collector.vmware.md
+++ b/docs/collector.vmware.md
@@ -0,0 +1,46 @@
+# vmware collector
+
+The vmware collector exposes metrics about a VMware guest VM
+
+|||
+-|-
+Metric name prefix  | `vmware`
+Classes             | `Win32_PerfRawData_vmGuestLib_VMem`, `Win32_PerfRawData_vmGuestLib_VCPU`
+Enabled by default? | No
+
+## Flags
+
+None
+
+## Metrics
+
+Name | Description | Type | Labels
+-----|-------------|------|-------
+`wmi_vmware_mem_active_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_ballooned_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_limit_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_mapped_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_overhead_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_reservation_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_shared_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_shared_saved_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_shares` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_swapped_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_target_size_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_mem_used_bytes` | _Not yet documented_ | gauge | None
+`wmi_vmware_cpu_limit_mhz` | _Not yet documented_ | gauge | None
+`wmi_vmware_cpu_reservation_mhz` | _Not yet documented_ | gauge | None
+`wmi_vmware_cpu_shares` | _Not yet documented_ | gauge | None
+`wmi_vmware_cpu_stolen_seconds_total` | _Not yet documented_ | counter | None
+`wmi_vmware_cpu_time_seconds_total` | _Not yet documented_ | counter | None
+`wmi_vmware_effective_vm_speed_mhz` | _Not yet documented_ | gauge | None
+`wmi_vmware_host_processor_speed_mhz` | _Not yet documented_ | gauge | None
+
+### Example metric
+_This collector does not yet have explained examples, we would appreciate your help adding them!_
+
+## Useful queries
+_This collector does not yet have any useful queries added, we would appreciate your help adding them!_
+
+## Alerting examples
+_This collector does not yet have alerting examples, we would appreciate your help adding them!_
--- a/exporter.go
+++ b/exporter.go
@@ -1,8 +1,9 @@
+// +build windows
+
 package main

 import (
 	"fmt"
-	"io"
 	"net/http"
 	"sort"
 	"strings"
@@ -185,7 +186,7 @@ func main() {
 		).Default("/metrics").String()
 		enabledCollectors = kingpin.Flag(
 			"collectors.enabled",
-			"Comma-separated list of collectors to use. Use '[default]' as a placeholder for all the collectors enabled by default.").
+			"Comma-separated list of collectors to use. Use '[defaults]' as a placeholder for all the collectors enabled by default.").
 			Default(filterAvailableCollectors(defaultCollectors)).String()
 		printCollectors = kingpin.Flag(
 			"collectors.print",
@@ -220,7 +221,12 @@ func main() {

 	stopCh := make(chan bool)
 	if !isInteractive {
-		go svc.Run(serviceName, &wmiExporterService{stopCh: stopCh})
+		go func() {
+			err = svc.Run(serviceName, &wmiExporterService{stopCh: stopCh})
+			if err != nil {
+				log.Errorf("Failed to start service: %v", err)
+			}
+		}()
 	}

 	collectors, err := loadCollectors(*enabledCollectors)
@@ -257,7 +263,10 @@ func main() {

 func healthCheck(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
-	io.WriteString(w, `{"status":"ok"}`)
+	_, err := fmt.Fprintln(w, `{"status":"ok"}`)
+	if err != nil {
+		log.Debugf("Failed to write to stream: %v", err)
+	}
 }

 func keys(m map[string]collector.Collector) []string {
--- a/exporter_test.go
+++ b/exporter_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package main

 import (
--- a/gometalinter.config
+++ b/gometalinter.config
@@ -0,0 +1,28 @@
+{
+    "Disable": [
+        "goconst",
+        "gocyclo",
+        "gosec",
+        "maligned",
+        "megacheck"
+    ],
+    "Enable": [
+        "deadcode",
+        "errcheck",
+        "golint",
+        "gotype",
+        "gotypex",
+        "ineffassign",
+        "interfacer",
+        "structcheck",
+        "unconvert",
+        "varcheck",
+        "vet",
+        "vetshadow"
+    ],
+    "Exclude": [
+        "don't use underscores in Go names",
+        "exported type .+ should have comment or be unexported",
+        "should be"
+    ]
+}
--- a/installer/wmi_exporter.wxs
+++ b/installer/wmi_exporter.wxs
@@ -19,6 +19,9 @@
    <Property Id="ENABLED_COLLECTORS" Secure="yes"/>
    <SetProperty Id="CollectorsFlag" After="InstallFiles" Sequence="execute" Value="--collectors.enabled [ENABLED_COLLECTORS]">ENABLED_COLLECTORS</SetProperty>

+    <Property Id="EXTRA_FLAGS" Secure="yes"/>
+    <SetProperty Id="ExtraFlags" After="InstallFiles" Sequence="execute" Value="[EXTRA_FLAGS]">EXTRA_FLAGS</SetProperty>
+
    <Property Id="LISTEN_ADDR" Secure="yes" />
    <Property Id="LISTEN_PORT" Secure="yes" Value="9182" />
    <SetProperty Id="ListenFlag" After="InstallFiles" Sequence="execute" Value="--telemetry.addr [LISTEN_ADDR]:[LISTEN_PORT]">LISTEN_ADDR OR LISTEN_PORT</SetProperty>
@@ -42,10 +45,11 @@
        <File Id="wmi_exporter.exe" Name="wmi_exporter.exe" Source="Work\wmi_exporter.exe" KeyPath="yes">
          <fw:FirewallException Id="MetricsEndpoint" Name="WMI Exporter (HTTP [LISTEN_PORT])" Description="WMI Exporter HTTP endpoint" Port="[LISTEN_PORT]" Protocol="tcp" Scope="any" IgnoreFailure="yes" />
        </File>
-        <ServiceInstall Id="InstallExporterService" Name="wmi_exporter" DisplayName="WMI exporter" Description="Exports Prometheus metrics from WMI queries" ErrorControl="normal" Start="auto" Type="ownProcess" Arguments="--log.format logger:eventlog?name=wmi_exporter [CollectorsFlag] [ListenFlag] [MetricsPathFlag] [TextfileDirFlag]">
+        <ServiceInstall Id="InstallExporterService" Name="wmi_exporter" DisplayName="WMI exporter" Description="Exports Prometheus metrics from WMI queries" ErrorControl="normal" Start="auto" Type="ownProcess" Arguments="--log.format logger:eventlog?name=wmi_exporter [CollectorsFlag] [ListenFlag] [MetricsPathFlag] [TextfileDirFlag] [ExtraFlags]">
          <util:ServiceConfig FirstFailureActionType="restart" SecondFailureActionType="restart" ThirdFailureActionType="restart" RestartServiceDelayInSeconds="5" />
        </ServiceInstall>
        <ServiceControl Id="ServiceStateControl" Name="wmi_exporter" Remove="uninstall" Start="install" Stop="both" />
+        <util:EventSource Log="Application" Name="wmi_exporter" EventMessageFile="%SystemRoot%\System32\EventCreate.exe" />
      </Component>
      <Component Id="CreateTextfileDirectory" Directory="textfile_inputs" Guid="d03ef58a-9cbf-4165-ad39-d143e9b27e14">
        <CreateFolder />
--- a/tools/collector-generator/collector.template
+++ b/tools/collector-generator/collector.template
@@ -1,5 +1,3 @@
-// returns data points from {{ .Class }}
-// <add link to documentation here> - {{ .Class }} class
 package collector
 import (
    "github.com/StackExchange/wmi"
@@ -38,6 +36,8 @@ func (c *{{ .CollectorName }}Collector) Collect(ch chan<- prometheus.Metric) err
    }
    return nil
 }
+// {{ .Class }} docs:
+// - <add link to documentation here>
 type {{ .Class }} struct {
    Name string
 {{ range $m := .Members }}
--- a/tools/collector-generator/generate-collector.go
+++ b/tools/collector-generator/generate-collector.go
@@ -25,7 +25,7 @@ func main() {
 		panic(err)
 	}
 	var data TemplateData
-	if err := json.Unmarshal(bytes, &data); err != nil {
+	if err = json.Unmarshal(bytes, &data); err != nil {
 		panic(err)
 	}

@@ -33,11 +33,11 @@ func main() {
 		"toLower":     strings.ToLower,
 		"toSnakeCase": toSnakeCase,
 	}
-	template, err := template.New("template").Funcs(funcs).ParseFiles("collector.template")
+	tmpl, err := template.New("template").Funcs(funcs).ParseFiles("collector.template")
 	if err != nil {
 		panic(err)
 	}
-	err = template.ExecuteTemplate(os.Stdout, "collector.template", data)
+	err = tmpl.ExecuteTemplate(os.Stdout, "collector.template", data)
 	if err != nil {
 		panic(err)
 	}
--- a/vendor/github.com/alecthomas/template/README.md
+++ b/vendor/github.com/alecthomas/template/README.md
@@ -1,25 +0,0 @@
-# Go's `text/template` package with newline elision
-
-This is a fork of Go 1.4's [text/template](http://golang.org/pkg/text/template/) package with one addition: a backslash immediately after a closing delimiter will delete all subsequent newlines until a non-newline.
-
-eg.
-
-```
-{{if true}}\
-hello
-{{end}}\
-```
-
-Will result in:
-
-```
-hello\n
-```
-
-Rather than:
-
-```
-\n
-hello\n
-\n
-```
--- a/vendor/github.com/alecthomas/units/README.md
+++ b/vendor/github.com/alecthomas/units/README.md
@@ -1,11 +0,0 @@
-# Units - Helpful unit multipliers and functions for Go
-
-The goal of this package is to have functionality similar to the [time](http://golang.org/pkg/time/) package.
-
-It allows for code like this:
-
-```go
-n, err := ParseBase2Bytes("1KB")
-// n == 1024
-n = units.Mebibyte * 512
-```
--- a/vendor/github.com/dimchansky/utfbom/LICENSE
+++ b/vendor/github.com/dimchansky/utfbom/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
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+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
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+   6. Trademarks. This License does not grant permission to use the trade
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+   7. Disclaimer of Warranty. Unless required by applicable law or
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+      defend, and hold each Contributor harmless for any liability
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
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+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
--- a/vendor/github.com/dimchansky/utfbom/utfbom.go
+++ b/vendor/github.com/dimchansky/utfbom/utfbom.go
@@ -0,0 +1,192 @@
+// Package utfbom implements the detection of the BOM (Unicode Byte Order Mark) and removing as necessary.
+// It wraps an io.Reader object, creating another object (Reader) that also implements the io.Reader
+// interface but provides automatic BOM checking and removing as necessary.
+package utfbom
+
+import (
+	"errors"
+	"io"
+)
+
+// Encoding is type alias for detected UTF encoding.
+type Encoding int
+
+// Constants to identify detected UTF encodings.
+const (
+	// Unknown encoding, returned when no BOM was detected
+	Unknown Encoding = iota
+
+	// UTF8, BOM bytes: EF BB BF
+	UTF8
+
+	// UTF-16, big-endian, BOM bytes: FE FF
+	UTF16BigEndian
+
+	// UTF-16, little-endian, BOM bytes: FF FE
+	UTF16LittleEndian
+
+	// UTF-32, big-endian, BOM bytes: 00 00 FE FF
+	UTF32BigEndian
+
+	// UTF-32, little-endian, BOM bytes: FF FE 00 00
+	UTF32LittleEndian
+)
+
+// String returns a user-friendly string representation of the encoding. Satisfies fmt.Stringer interface.
+func (e Encoding) String() string {
+	switch e {
+	case UTF8:
+		return "UTF8"
+	case UTF16BigEndian:
+		return "UTF16BigEndian"
+	case UTF16LittleEndian:
+		return "UTF16LittleEndian"
+	case UTF32BigEndian:
+		return "UTF32BigEndian"
+	case UTF32LittleEndian:
+		return "UTF32LittleEndian"
+	default:
+		return "Unknown"
+	}
+}
+
+const maxConsecutiveEmptyReads = 100
+
+// Skip creates Reader which automatically detects BOM (Unicode Byte Order Mark) and removes it as necessary.
+// It also returns the encoding detected by the BOM.
+// If the detected encoding is not needed, you can call the SkipOnly function.
+func Skip(rd io.Reader) (*Reader, Encoding) {
+	// Is it already a Reader?
+	b, ok := rd.(*Reader)
+	if ok {
+		return b, Unknown
+	}
+
+	enc, left, err := detectUtf(rd)
+	return &Reader{
+		rd:  rd,
+		buf: left,
+		err: err,
+	}, enc
+}
+
+// SkipOnly creates Reader which automatically detects BOM (Unicode Byte Order Mark) and removes it as necessary.
+func SkipOnly(rd io.Reader) *Reader {
+	r, _ := Skip(rd)
+	return r
+}
+
+// Reader implements automatic BOM (Unicode Byte Order Mark) checking and
+// removing as necessary for an io.Reader object.
+type Reader struct {
+	rd  io.Reader // reader provided by the client
+	buf []byte    // buffered data
+	err error     // last error
+}
+
+// Read is an implementation of io.Reader interface.
+// The bytes are taken from the underlying Reader, but it checks for BOMs, removing them as necessary.
+func (r *Reader) Read(p []byte) (n int, err error) {
+	if len(p) == 0 {
+		return 0, nil
+	}
+
+	if r.buf == nil {
+		if r.err != nil {
+			return 0, r.readErr()
+		}
+
+		return r.rd.Read(p)
+	}
+
+	// copy as much as we can
+	n = copy(p, r.buf)
+	r.buf = nilIfEmpty(r.buf[n:])
+	return n, nil
+}
+
+func (r *Reader) readErr() error {
+	err := r.err
+	r.err = nil
+	return err
+}
+
+var errNegativeRead = errors.New("utfbom: reader returned negative count from Read")
+
+func detectUtf(rd io.Reader) (enc Encoding, buf []byte, err error) {
+	buf, err = readBOM(rd)
+
+	if len(buf) >= 4 {
+		if isUTF32BigEndianBOM4(buf) {
+			return UTF32BigEndian, nilIfEmpty(buf[4:]), err
+		}
+		if isUTF32LittleEndianBOM4(buf) {
+			return UTF32LittleEndian, nilIfEmpty(buf[4:]), err
+		}
+	}
+
+	if len(buf) > 2 && isUTF8BOM3(buf) {
+		return UTF8, nilIfEmpty(buf[3:]), err
+	}
+
+	if (err != nil && err != io.EOF) || (len(buf) < 2) {
+		return Unknown, nilIfEmpty(buf), err
+	}
+
+	if isUTF16BigEndianBOM2(buf) {
+		return UTF16BigEndian, nilIfEmpty(buf[2:]), err
+	}
+	if isUTF16LittleEndianBOM2(buf) {
+		return UTF16LittleEndian, nilIfEmpty(buf[2:]), err
+	}
+
+	return Unknown, nilIfEmpty(buf), err
+}
+
+func readBOM(rd io.Reader) (buf []byte, err error) {
+	const maxBOMSize = 4
+	var bom [maxBOMSize]byte // used to read BOM
+
+	// read as many bytes as possible
+	for nEmpty, n := 0, 0; err == nil && len(buf) < maxBOMSize; buf = bom[:len(buf)+n] {
+		if n, err = rd.Read(bom[len(buf):]); n < 0 {
+			panic(errNegativeRead)
+		}
+		if n > 0 {
+			nEmpty = 0
+		} else {
+			nEmpty++
+			if nEmpty >= maxConsecutiveEmptyReads {
+				err = io.ErrNoProgress
+			}
+		}
+	}
+	return
+}
+
+func isUTF32BigEndianBOM4(buf []byte) bool {
+	return buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0xFE && buf[3] == 0xFF
+}
+
+func isUTF32LittleEndianBOM4(buf []byte) bool {
+	return buf[0] == 0xFF && buf[1] == 0xFE && buf[2] == 0x00 && buf[3] == 0x00
+}
+
+func isUTF8BOM3(buf []byte) bool {
+	return buf[0] == 0xEF && buf[1] == 0xBB && buf[2] == 0xBF
+}
+
+func isUTF16BigEndianBOM2(buf []byte) bool {
+	return buf[0] == 0xFE && buf[1] == 0xFF
+}
+
+func isUTF16LittleEndianBOM2(buf []byte) bool {
+	return buf[0] == 0xFF && buf[1] == 0xFE
+}
+
+func nilIfEmpty(buf []byte) (res []byte) {
+	if len(buf) > 0 {
+		res = buf
+	}
+	return
+}
--- a/vendor/gopkg.in/alecthomas/kingpin.v2/README.md
+++ b/vendor/gopkg.in/alecthomas/kingpin.v2/README.md
@@ -1,674 +0,0 @@
-# Kingpin - A Go (golang) command line and flag parser
-[![](https://godoc.org/github.com/alecthomas/kingpin?status.svg)](http://godoc.org/github.com/alecthomas/kingpin) [![Build Status](https://travis-ci.org/alecthomas/kingpin.svg?branch=master)](https://travis-ci.org/alecthomas/kingpin) [![Gitter chat](https://badges.gitter.im/alecthomas.png)](https://gitter.im/alecthomas/Lobby)
-
-
-
-<!-- MarkdownTOC -->
-
- [Overview](#overview)
- [Features](#features)
- [User-visible changes between v1 and v2](#user-visible-changes-between-v1-and-v2)
-  - [Flags can be used at any point after their definition.](#flags-can-be-used-at-any-point-after-their-definition)
-  - [Short flags can be combined with their parameters](#short-flags-can-be-combined-with-their-parameters)
- [API changes between v1 and v2](#api-changes-between-v1-and-v2)
- [Versions](#versions)
-  - [V2 is the current stable version](#v2-is-the-current-stable-version)
-  - [V1 is the OLD stable version](#v1-is-the-old-stable-version)
- [Change History](#change-history)
- [Examples](#examples)
-  - [Simple Example](#simple-example)
-  - [Complex Example](#complex-example)
- [Reference Documentation](#reference-documentation)
-  - [Displaying errors and usage information](#displaying-errors-and-usage-information)
-  - [Sub-commands](#sub-commands)
-  - [Custom Parsers](#custom-parsers)
-  - [Repeatable flags](#repeatable-flags)
-  - [Boolean Values](#boolean-values)
-  - [Default Values](#default-values)
-  - [Place-holders in Help](#place-holders-in-help)
-  - [Consuming all remaining arguments](#consuming-all-remaining-arguments)
-  - [Bash/ZSH Shell Completion](#bashzsh-shell-completion)
-  - [Supporting -h for help](#supporting--h-for-help)
-  - [Custom help](#custom-help)
-
-<!-- /MarkdownTOC -->
-
-## Overview
-
-Kingpin is a [fluent-style](http://en.wikipedia.org/wiki/Fluent_interface),
-type-safe command-line parser. It supports flags, nested commands, and
-positional arguments.
-
-Install it with:
-
-    $ go get gopkg.in/alecthomas/kingpin.v2
-
-It looks like this:
-
-```go
-var (
-  verbose = kingpin.Flag("verbose", "Verbose mode.").Short('v').Bool()
-  name    = kingpin.Arg("name", "Name of user.").Required().String()
-)
-
-func main() {
-  kingpin.Parse()
-  fmt.Printf("%v, %s\n", *verbose, *name)
-}
-```
-
-More [examples](https://github.com/alecthomas/kingpin/tree/master/_examples) are available.
-
-Second to parsing, providing the user with useful help is probably the most
-important thing a command-line parser does. Kingpin tries to provide detailed
-contextual help if `--help` is encountered at any point in the command line
-(excluding after `--`).
-
-## Features
-
- Help output that isn't as ugly as sin.
- Fully [customisable help](#custom-help), via Go templates.
- Parsed, type-safe flags (`kingpin.Flag("f", "help").Int()`)
- Parsed, type-safe positional arguments (`kingpin.Arg("a", "help").Int()`).
- Parsed, type-safe, arbitrarily deep commands (`kingpin.Command("c", "help")`).
- Support for required flags and required positional arguments (`kingpin.Flag("f", "").Required().Int()`).
- Support for arbitrarily nested default commands (`command.Default()`).
- Callbacks per command, flag and argument (`kingpin.Command("c", "").Action(myAction)`).
- POSIX-style short flag combining (`-a -b` -> `-ab`).
- Short-flag+parameter combining (`-a parm` -> `-aparm`).
- Read command-line from files (`@<file>`).
- Automatically generate man pages (`--help-man`).
-
-## User-visible changes between v1 and v2
-
-### Flags can be used at any point after their definition.
-
-Flags can be specified at any point after their definition, not just
-*immediately after their associated command*. From the chat example below, the
-following used to be required:
-
-```
-$ chat --server=chat.server.com:8080 post --image=~/Downloads/owls.jpg pics
-```
-
-But the following will now work:
-
-```
-$ chat post --server=chat.server.com:8080 --image=~/Downloads/owls.jpg pics
-```
-
-### Short flags can be combined with their parameters
-
-Previously, if a short flag was used, any argument to that flag would have to
-be separated by a space. That is no longer the case.
-
-## API changes between v1 and v2
-
- `ParseWithFileExpansion()` is gone. The new parser directly supports expanding `@<file>`.
- Added `FatalUsage()` and `FatalUsageContext()` for displaying an error + usage and terminating.
- `Dispatch()` renamed to `Action()`.
- Added `ParseContext()` for parsing a command line into its intermediate context form without executing.
- Added `Terminate()` function to override the termination function.
- Added `UsageForContextWithTemplate()` for printing usage via a custom template.
- Added `UsageTemplate()` for overriding the default template to use. Two templates are included:
-    1. `DefaultUsageTemplate` - default template.
-    2. `CompactUsageTemplate` - compact command template for larger applications.
-
-## Versions
-
-Kingpin uses [gopkg.in](https://gopkg.in/alecthomas/kingpin) for versioning.
-
-The current stable version is [gopkg.in/alecthomas/kingpin.v2](https://gopkg.in/alecthomas/kingpin.v2). The previous version, [gopkg.in/alecthomas/kingpin.v1](https://gopkg.in/alecthomas/kingpin.v1), is deprecated and in maintenance mode.
-
-### [V2](https://gopkg.in/alecthomas/kingpin.v2) is the current stable version
-
-Installation:
-
-```sh
-$ go get gopkg.in/alecthomas/kingpin.v2
-```
-
-### [V1](https://gopkg.in/alecthomas/kingpin.v1) is the OLD stable version
-
-Installation:
-
-```sh
-$ go get gopkg.in/alecthomas/kingpin.v1
-```
-
-## Change History
-
- *2015-09-19* -- Stable v2.1.0 release.
-    - Added `command.Default()` to specify a default command to use if no other
-      command matches. This allows for convenient user shortcuts.
-    - Exposed `HelpFlag` and `VersionFlag` for further customisation.
-    - `Action()` and `PreAction()` added and both now support an arbitrary
-      number of callbacks.
-    - `kingpin.SeparateOptionalFlagsUsageTemplate`.
-    - `--help-long` and `--help-man` (hidden by default) flags.
-    - Flags are "interspersed" by default, but can be disabled with `app.Interspersed(false)`.
-    - Added flags for all simple builtin types (int8, uint16, etc.) and slice variants.
-    - Use `app.Writer(os.Writer)` to specify the default writer for all output functions.
-    - Dropped `os.Writer` prefix from all printf-like functions.
-
- *2015-05-22* -- Stable v2.0.0 release.
-    - Initial stable release of v2.0.0.
-    - Fully supports interspersed flags, commands and arguments.
-    - Flags can be present at any point after their logical definition.
-    - Application.Parse() terminates if commands are present and a command is not parsed.
-    - Dispatch() -> Action().
-    - Actions are dispatched after all values are populated.
-    - Override termination function (defaults to os.Exit).
-    - Override output stream (defaults to os.Stderr).
-    - Templatised usage help, with default and compact templates.
-    - Make error/usage functions more consistent.
-    - Support argument expansion from files by default (with @<file>).
-    - Fully public data model is available via .Model().
-    - Parser has been completely refactored.
-    - Parsing and execution has been split into distinct stages.
-    - Use `go generate` to generate repeated flags.
-    - Support combined short-flag+argument: -fARG.
-
- *2015-01-23* -- Stable v1.3.4 release.
-    - Support "--" for separating flags from positional arguments.
-    - Support loading flags from files (ParseWithFileExpansion()). Use @FILE as an argument.
-    - Add post-app and post-cmd validation hooks. This allows arbitrary validation to be added.
-    - A bunch of improvements to help usage and formatting.
-    - Support arbitrarily nested sub-commands.
-
- *2014-07-08* -- Stable v1.2.0 release.
-    - Pass any value through to `Strings()` when final argument.
-      Allows for values that look like flags to be processed.
-    - Allow `--help` to be used with commands.
-    - Support `Hidden()` flags.
-    - Parser for [units.Base2Bytes](https://github.com/alecthomas/units)
-      type. Allows for flags like `--ram=512MB` or `--ram=1GB`.
-    - Add an `Enum()` value, allowing only one of a set of values
-      to be selected. eg. `Flag(...).Enum("debug", "info", "warning")`.
-
- *2014-06-27* -- Stable v1.1.0 release.
-    - Bug fixes.
-    - Always return an error (rather than panicing) when misconfigured.
-    - `OpenFile(flag, perm)` value type added, for finer control over opening files.
-    - Significantly improved usage formatting.
-
- *2014-06-19* -- Stable v1.0.0 release.
-    - Support [cumulative positional](#consuming-all-remaining-arguments) arguments.
-    - Return error rather than panic when there are fatal errors not caught by
-      the type system. eg. when a default value is invalid.
-    - Use gokpg.in.
-
- *2014-06-10* -- Place-holder streamlining.
-    - Renamed `MetaVar` to `PlaceHolder`.
-    - Removed `MetaVarFromDefault`. Kingpin now uses [heuristics](#place-holders-in-help)
-      to determine what to display.
-
-## Examples
-
-### Simple Example
-
-Kingpin can be used for simple flag+arg applications like so:
-
-```
-$ ping --help
-usage: ping [<flags>] <ip> [<count>]
-
-Flags:
-  --debug            Enable debug mode.
-  --help             Show help.
-  -t, --timeout=5s   Timeout waiting for ping.
-
-Args:
-  <ip>        IP address to ping.
-  [<count>]   Number of packets to send
-$ ping 1.2.3.4 5
-Would ping: 1.2.3.4 with timeout 5s and count 0
-```
-
-From the following source:
-
-```go
-package main
-
-import (
-  "fmt"
-
-  "gopkg.in/alecthomas/kingpin.v2"
-)
-
-var (
-  debug   = kingpin.Flag("debug", "Enable debug mode.").Bool()
-  timeout = kingpin.Flag("timeout", "Timeout waiting for ping.").Default("5s").OverrideDefaultFromEnvar("PING_TIMEOUT").Short('t').Duration()
-  ip      = kingpin.Arg("ip", "IP address to ping.").Required().IP()
-  count   = kingpin.Arg("count", "Number of packets to send").Int()
-)
-
-func main() {
-  kingpin.Version("0.0.1")
-  kingpin.Parse()
-  fmt.Printf("Would ping: %s with timeout %s and count %d\n", *ip, *timeout, *count)
-}
-```
-
-### Complex Example
-
-Kingpin can also produce complex command-line applications with global flags,
-subcommands, and per-subcommand flags, like this:
-
-```
-$ chat --help
-usage: chat [<flags>] <command> [<flags>] [<args> ...]
-
-A command-line chat application.
-
-Flags:
-  --help              Show help.
-  --debug             Enable debug mode.
-  --server=127.0.0.1  Server address.
-
-Commands:
-  help [<command>]
-    Show help for a command.
-
-  register <nick> <name>
-    Register a new user.
-
-  post [<flags>] <channel> [<text>]
-    Post a message to a channel.
-
-$ chat help post
-usage: chat [<flags>] post [<flags>] <channel> [<text>]
-
-Post a message to a channel.
-
-Flags:
-  --image=IMAGE  Image to post.
-
-Args:
-  <channel>  Channel to post to.
-  [<text>]   Text to post.
-
-$ chat post --image=~/Downloads/owls.jpg pics
-...
-```
-
-From this code:
-
-```go
-package main
-
-import (
-  "os"
-  "strings"
-  "gopkg.in/alecthomas/kingpin.v2"
-)
-
-var (
-  app      = kingpin.New("chat", "A command-line chat application.")
-  debug    = app.Flag("debug", "Enable debug mode.").Bool()
-  serverIP = app.Flag("server", "Server address.").Default("127.0.0.1").IP()
-
-  register     = app.Command("register", "Register a new user.")
-  registerNick = register.Arg("nick", "Nickname for user.").Required().String()
-  registerName = register.Arg("name", "Name of user.").Required().String()
-
-  post        = app.Command("post", "Post a message to a channel.")
-  postImage   = post.Flag("image", "Image to post.").File()
-  postChannel = post.Arg("channel", "Channel to post to.").Required().String()
-  postText    = post.Arg("text", "Text to post.").Strings()
-)
-
-func main() {
-  switch kingpin.MustParse(app.Parse(os.Args[1:])) {
-  // Register user
-  case register.FullCommand():
-    println(*registerNick)
-
-  // Post message
-  case post.FullCommand():
-    if *postImage != nil {
-    }
-    text := strings.Join(*postText, " ")
-    println("Post:", text)
-  }
-}
-```
-
-## Reference Documentation
-
-### Displaying errors and usage information
-
-Kingpin exports a set of functions to provide consistent errors and usage
-information to the user.
-
-Error messages look something like this:
-
-    <app>: error: <message>
-
-The functions on `Application` are:
-
-Function | Purpose
---------|--------------
-`Errorf(format, args)` | Display a printf formatted error to the user.
-`Fatalf(format, args)` | As with Errorf, but also call the termination handler.
-`FatalUsage(format, args)` | As with Fatalf, but also print contextual usage information.
-`FatalUsageContext(context, format, args)` | As with Fatalf, but also print contextual usage information from a `ParseContext`.
-`FatalIfError(err, format, args)` | Conditionally print an error prefixed with format+args, then call the termination handler
-
-There are equivalent global functions in the kingpin namespace for the default
-`kingpin.CommandLine` instance.
-
-### Sub-commands
-
-Kingpin supports nested sub-commands, with separate flag and positional
-arguments per sub-command. Note that positional arguments may only occur after
-sub-commands.
-
-For example:
-
-```go
-var (
-  deleteCommand     = kingpin.Command("delete", "Delete an object.")
-  deleteUserCommand = deleteCommand.Command("user", "Delete a user.")
-  deleteUserUIDFlag = deleteUserCommand.Flag("uid", "Delete user by UID rather than username.")
-  deleteUserUsername = deleteUserCommand.Arg("username", "Username to delete.")
-  deletePostCommand = deleteCommand.Command("post", "Delete a post.")
-)
-
-func main() {
-  switch kingpin.Parse() {
-  case "delete user":
-  case "delete post":
-  }
-}
-```
-
-### Custom Parsers
-
-Kingpin supports both flag and positional argument parsers for converting to
-Go types. For example, some included parsers are `Int()`, `Float()`,
-`Duration()` and `ExistingFile()` (see [parsers.go](./parsers.go) for a complete list of included parsers).
-
-Parsers conform to Go's [`flag.Value`](http://godoc.org/flag#Value)
-interface, so any existing implementations will work.
-
-For example, a parser for accumulating HTTP header values might look like this:
-
-```go
-type HTTPHeaderValue http.Header
-
-func (h *HTTPHeaderValue) Set(value string) error {
-  parts := strings.SplitN(value, ":", 2)
-  if len(parts) != 2 {
-    return fmt.Errorf("expected HEADER:VALUE got '%s'", value)
-  }
-  (*http.Header)(h).Add(parts[0], parts[1])
-  return nil
-}
-
-func (h *HTTPHeaderValue) String() string {
-  return ""
-}
-```
-
-As a convenience, I would recommend something like this:
-
-```go
-func HTTPHeader(s Settings) (target *http.Header) {
-  target = &http.Header{}
-  s.SetValue((*HTTPHeaderValue)(target))
-  return
-}
-```
-
-You would use it like so:
-
-```go
-headers = HTTPHeader(kingpin.Flag("header", "Add a HTTP header to the request.").Short('H'))
-```
-
-### Repeatable flags
-
-Depending on the `Value` they hold, some flags may be repeated. The
-`IsCumulative() bool` function on `Value` tells if it's safe to call `Set()`
-multiple times or if an error should be raised if several values are passed.
-
-The built-in `Value`s returning slices and maps, as well as `Counter` are
-examples of `Value`s that make a flag repeatable.
-
-### Boolean values
-
-Boolean values are uniquely managed by Kingpin. Each boolean flag will have a negative complement:
-`--<name>` and `--no-<name>`.
-
-### Default Values
-
-The default value is the zero value for a type. This can be overridden with
-the `Default(value...)` function on flags and arguments. This function accepts
-one or several strings, which are parsed by the value itself, so they *must*
-be compliant with the format expected.
-
-### Place-holders in Help
-
-The place-holder value for a flag is the value used in the help to describe
-the value of a non-boolean flag.
-
-The value provided to PlaceHolder() is used if provided, then the value
-provided by Default() if provided, then finally the capitalised flag name is
-used.
-
-Here are some examples of flags with various permutations:
-
-    --name=NAME           // Flag(...).String()
-    --name="Harry"        // Flag(...).Default("Harry").String()
-    --name=FULL-NAME      // flag(...).PlaceHolder("FULL-NAME").Default("Harry").String()
-
-### Consuming all remaining arguments
-
-A common command-line idiom is to use all remaining arguments for some
-purpose. eg. The following command accepts an arbitrary number of
-IP addresses as positional arguments:
-
-    ./cmd ping 10.1.1.1 192.168.1.1
-
-Such arguments are similar to [repeatable flags](#repeatable-flags), but for
-arguments. Therefore they use the same `IsCumulative() bool` function on the
-underlying `Value`, so the built-in `Value`s for which the `Set()` function
-can be called several times will consume multiple arguments.
-
-To implement the above example with a custom `Value`, we might do something
-like this:
-
-```go
-type ipList []net.IP
-
-func (i *ipList) Set(value string) error {
-  if ip := net.ParseIP(value); ip == nil {
-    return fmt.Errorf("'%s' is not an IP address", value)
-  } else {
-    *i = append(*i, ip)
-    return nil
-  }
-}
-
-func (i *ipList) String() string {
-  return ""
-}
-
-func (i *ipList) IsCumulative() bool {
-  return true
-}
-
-func IPList(s Settings) (target *[]net.IP) {
-  target = new([]net.IP)
-  s.SetValue((*ipList)(target))
-  return
-}
-```
-
-And use it like so:
-
-```go
-ips := IPList(kingpin.Arg("ips", "IP addresses to ping."))
-```
-
-### Bash/ZSH Shell Completion
-
-By default, all flags and commands/subcommands generate completions 
-internally.
-
-Out of the box, CLI tools using kingpin should be able to take advantage 
-of completion hinting for flags and commands. By specifying 
-`--completion-bash` as the first argument, your CLI tool will show 
-possible subcommands. By ending your argv with `--`, hints for flags 
-will be shown.
-
-To allow your end users to take advantage you must package a 
-`/etc/bash_completion.d` script with your distribution (or the equivalent 
-for your target platform/shell). An alternative is to instruct your end 
-user to source a script from their `bash_profile` (or equivalent).
-
-Fortunately Kingpin makes it easy to generate or source a script for use
-with end users shells. `./yourtool --completion-script-bash` and 
-`./yourtool --completion-script-zsh` will generate these scripts for you.
-
-**Installation by Package**
-
-For the best user experience, you should bundle your pre-created 
-completion script with your CLI tool and install it inside 
-`/etc/bash_completion.d` (or equivalent). A good suggestion is to add 
-this as an automated step to your build pipeline, in the implementation 
-is improved for bug fixed.
-
-**Installation by `bash_profile`**
-
-Alternatively, instruct your users to add an additional statement to 
-their `bash_profile` (or equivalent):
-
-```
-eval "$(your-cli-tool --completion-script-bash)"
-```
-
-Or for ZSH
-
-```
-eval "$(your-cli-tool --completion-script-zsh)"
-```
-
-#### Additional API
-To provide more flexibility, a completion option API has been
-exposed for flags to allow user defined completion options, to extend
-completions further than just EnumVar/Enum. 
-
-
-**Provide Static Options**
-
-When using an `Enum` or `EnumVar`, users are limited to only the options 
-given. Maybe we wish to hint possible options to the user, but also 
-allow them to provide their own custom option. `HintOptions` gives
-this functionality to flags.
-
-```
-app := kingpin.New("completion", "My application with bash completion.")
-app.Flag("port", "Provide a port to connect to").
-    Required().
-    HintOptions("80", "443", "8080").
-    IntVar(&c.port)
-```
-
-**Provide Dynamic Options**
-Consider the case that you needed to read a local database or a file to 
-provide suggestions. You can dynamically generate the options
-
-```
-func listHosts() []string {
-  // Provide a dynamic list of hosts from a hosts file or otherwise
-  // for bash completion. In this example we simply return static slice.
-
-  // You could use this functionality to reach into a hosts file to provide
-  // completion for a list of known hosts.
-  return []string{"sshhost.example", "webhost.example", "ftphost.example"}
-}
-
-app := kingpin.New("completion", "My application with bash completion.")
-app.Flag("flag-1", "").HintAction(listHosts).String()
-```
-
-**EnumVar/Enum**
-When using `Enum` or `EnumVar`, any provided options will be automatically
-used for bash autocompletion. However, if you wish to provide a subset or 
-different options, you can use `HintOptions` or `HintAction` which will override
-the default completion options for `Enum`/`EnumVar`.
-
-
-**Examples**
-You can see an in depth example of the completion API within 
-`examples/completion/main.go`
-
-
-### Supporting -h for help
-
-`kingpin.CommandLine.HelpFlag.Short('h')`
-
-### Custom help
-
-Kingpin v2 supports templatised help using the text/template library (actually, [a fork](https://github.com/alecthomas/template)).
-
-You can specify the template to use with the [Application.UsageTemplate()](http://godoc.org/gopkg.in/alecthomas/kingpin.v2#Application.UsageTemplate) function.
-
-There are four included templates: `kingpin.DefaultUsageTemplate` is the default,
-`kingpin.CompactUsageTemplate` provides a more compact representation for more complex command-line structures,
-`kingpin.SeparateOptionalFlagsUsageTemplate` looks like the default template, but splits required
-and optional command flags into separate lists, and `kingpin.ManPageTemplate` is used to generate man pages.
-
-See the above templates for examples of usage, and the the function [UsageForContextWithTemplate()](https://github.com/alecthomas/kingpin/blob/master/usage.go#L198) method for details on the context.
-
-#### Default help template
-
-```
-$ go run ./examples/curl/curl.go --help
-usage: curl [<flags>] <command> [<args> ...]
-
-An example implementation of curl.
-
-Flags:
-  --help            Show help.
-  -t, --timeout=5s  Set connection timeout.
-  -H, --headers=HEADER=VALUE
-                    Add HTTP headers to the request.
-
-Commands:
-  help [<command>...]
-    Show help.
-
-  get url <url>
-    Retrieve a URL.
-
-  get file <file>
-    Retrieve a file.
-
-  post [<flags>] <url>
-    POST a resource.
-```
-
-#### Compact help template
-
-```
-$ go run ./examples/curl/curl.go --help
-usage: curl [<flags>] <command> [<args> ...]
-
-An example implementation of curl.
-
-Flags:
-  --help            Show help.
-  -t, --timeout=5s  Set connection timeout.
-  -H, --headers=HEADER=VALUE
-                    Add HTTP headers to the request.
-
-Commands:
-  help [<command>...]
-  get [<flags>]
-    url <url>
-    file <file>
-  post [<flags>] <url>
-```
--- a/vendor/gopkg.in/alecthomas/kingpin.v2/values.json
+++ b/vendor/gopkg.in/alecthomas/kingpin.v2/values.json
@@ -1,25 +0,0 @@
-[
-  {"type": "bool", "parser": "strconv.ParseBool(s)"},
-  {"type": "string", "parser": "s, error(nil)", "format": "string(*f.v)", "plural": "Strings"},
-  {"type": "uint", "parser": "strconv.ParseUint(s, 0, 64)", "plural": "Uints"},
-  {"type": "uint8", "parser": "strconv.ParseUint(s, 0, 8)"},
-  {"type": "uint16", "parser": "strconv.ParseUint(s, 0, 16)"},
-  {"type": "uint32", "parser": "strconv.ParseUint(s, 0, 32)"},
-  {"type": "uint64", "parser": "strconv.ParseUint(s, 0, 64)"},
-  {"type": "int", "parser": "strconv.ParseFloat(s, 64)", "plural": "Ints"},
-  {"type": "int8", "parser": "strconv.ParseInt(s, 0, 8)"},
-  {"type": "int16", "parser": "strconv.ParseInt(s, 0, 16)"},
-  {"type": "int32", "parser": "strconv.ParseInt(s, 0, 32)"},
-  {"type": "int64", "parser": "strconv.ParseInt(s, 0, 64)"},
-  {"type": "float64", "parser": "strconv.ParseFloat(s, 64)"},
-  {"type": "float32", "parser": "strconv.ParseFloat(s, 32)"},
-  {"name": "Duration", "type": "time.Duration", "no_value_parser": true},
-  {"name": "IP", "type": "net.IP", "no_value_parser": true},
-  {"name": "TCPAddr", "Type": "*net.TCPAddr", "plural": "TCPList", "no_value_parser": true},
-  {"name": "ExistingFile", "Type": "string", "plural": "ExistingFiles", "no_value_parser": true},
-  {"name": "ExistingDir", "Type": "string", "plural": "ExistingDirs", "no_value_parser": true},
-  {"name": "ExistingFileOrDir", "Type": "string", "plural": "ExistingFilesOrDirs", "no_value_parser": true},
-  {"name": "Regexp", "Type": "*regexp.Regexp", "parser": "regexp.Compile(s)"},
-  {"name": "ResolvedIP", "Type": "net.IP", "parser": "resolveHost(s)", "help": "Resolve a hostname or IP to an IP."},
-  {"name": "HexBytes", "Type": "[]byte", "parser": "hex.DecodeString(s)", "help": "Bytes as a hex string."}
-]
Author	SHA1	Message	Date
Calle Pettersson	517cd3b04b	Merge pull request #263 from martinlindhe/linting Add linting	2019-01-27 21:28:50 +01:00
Calle Pettersson	9daa8c8775	Don't shadow err	2019-01-23 10:02:13 +01:00
Calle Pettersson	e04d3f414d	Explicitly set which linters are enabled	2019-01-23 10:01:31 +01:00
Calle Pettersson	4c69ed1610	Lint-fix: errcheck not found on local run(?)	2019-01-23 10:01:31 +01:00
Calle Pettersson	a171401f57	Lint-fix: errcheck. Partial fix to #261	2019-01-23 10:00:52 +01:00
Calle Pettersson	e24e0dc9f5	Lint-fix: Ignore goconst	2019-01-23 09:57:08 +01:00
Calle Pettersson	0eab86c731	Lint-fix: vet. Fixes potential overflow in AD collector	2019-01-23 09:56:24 +01:00
Calle Pettersson	13c68634ce	Lint-fix: varcheck	2019-01-23 09:56:24 +01:00
Calle Pettersson	73ad1ba960	Lint-fix: vetshadow	2019-01-23 09:56:24 +01:00
Calle Pettersson	0121fd6471	Lint-fix: Final golint, ignore capitalisation rules	2019-01-23 09:56:24 +01:00
Calle Pettersson	93904954f4	Lint-fix: Dead code. Fixes bug with IIS app white/blacklisting	2019-01-23 09:56:24 +01:00
Calle Pettersson	f2462b26c8	Lint-fix: Package comments	2019-01-23 09:56:24 +01:00
Calle Pettersson	7e05621b26	Move to makefile, do initial excludes	2019-01-23 09:56:24 +01:00
Calle Pettersson	76ddad34b8	Add linting	2019-01-23 09:55:26 +01:00
Calle Pettersson	2053dea3ac	Fix log message source (#312 )	2019-01-23 02:25:23 +01:00
Calle Pettersson	35b81dcdd0	Change AppVeyor build to cross-compile instead of having two runs (#311 )	2019-01-23 02:24:59 +01:00
Calle Pettersson	39b0000514	Merge pull request #303 from monitoring-tools/failed_querying_wp There was added the checking and logging of query worker processes.	2019-01-20 21:24:14 +01:00
Calle Pettersson	76ec763c42	Merge pull request #307 from giuliov/master Added an example for textfile collector	2019-01-18 09:10:33 +01:00
Giulio Vian	7ccc47cc51	Added an example for textfile collector Added a practical example for textfile collector using a Powershell snippet that generates a valid file.	2019-01-16 13:15:57 +00:00
vlamug	ad29ac0792	There was added the checking and logging of query worker processes	2018-12-21 15:16:08 +04:00
Calle Pettersson	d58ce114d9	Merge pull request #299 from hairyhenderson/update-utfbom-dep textfile collector: updating utfbom dependency and simplifying code	2018-12-12 20:05:44 +01:00
Dave Henderson	5f9dfcc378	textfile collector: updating utfbom dependency and simplifying code Signed-off-by: Dave Henderson <dhenderson@gmail.com>	2018-12-12 12:30:25 -05:00
Calle Pettersson	f4e5bc3d29	Merge pull request #296 from amitsaha/update_readmelinks Update main README and docs/README	2018-12-05 07:10:31 +01:00
Amit Saha	f4362c5987	Update README	2018-12-05 11:48:23 +11:00
Amit Saha	f691b48304	Update README	2018-12-05 11:42:30 +11:00
Calle Pettersson	d12d31a17f	Merge pull request #294 from hairyhenderson/windows-build-constraints Adding windows build constraints	2018-11-30 18:57:56 +01:00
Calle Pettersson	48d23cfb12	Merge pull request #295 from h3po/patch-1 Update collector.textfile.md	2018-11-30 18:55:42 +01:00
Daniel	17039b8206	Update collector.textfile.md Had to read the code to find out why my `.txt` textfiles weren't being read	2018-11-30 13:48:34 +01:00
Calle Pettersson	2993552e19	Merge pull request #293 from hairyhenderson/ensure-utf8-textfiles textfile collector: Ensure that only UTF8 textfiles are parsed	2018-11-30 07:44:32 +01:00
Dave Henderson	5d4cafc0a1	Adding windows build constraints Signed-off-by: Dave Henderson <dhenderson@gmail.com>	2018-11-29 19:51:12 -05:00
Dave Henderson	a70c57ffd1	textfile collector: Ensure that only UTF8 textfiles are parsed Signed-off-by: Dave Henderson <dhenderson@gmail.com>	2018-11-29 16:41:24 -05:00
Kevin Pettijohn	b2cb04834a	MSI parameter - EXTRA_FLAGS (#291 ) Added the parameter called EXTRA_FLAGS to handle additional unspecified flags within the MSI installer.	2018-11-29 20:14:37 +01:00
Calle Pettersson	f27fdbbbf5	Merge pull request #287 from coalfire/add-console_template add wmi-overview console template	2018-11-20 09:51:41 +01:00
Noah Birnel	7dda8eba03	add wmi-overview console template	2018-11-19 15:12:22 -08:00
Calle Pettersson	080f80eb26	Fix broken summary table in collector docs (#286 )	2018-11-18 22:26:38 +01:00
Calle Pettersson	2766f0e3af	Merge pull request #266 from aswhit1/os_memory Win32_PerfRawData_PerfOS_Memory module	2018-11-18 18:29:42 +01:00
Calle Pettersson	939f4832ee	Add docs	2018-11-18 18:26:58 +01:00
Calle Pettersson	9e1d4bbaed	Fix naming	2018-11-18 18:26:15 +01:00
aswhit1	8ef341a51c	commented out 'Name' variable in struct declaration	2018-11-18 18:26:15 +01:00
aswhit1	1fde8bae5b	Win32_PerfRawData_PerfOS_Memory module Initial commit	2018-11-18 18:26:15 +01:00
Calle Pettersson	48220d825e	Merge pull request #285 from hairyhenderson/skip-bom textfile collector: Skip BOM when present	2018-11-18 17:25:27 +01:00
Calle Pettersson	9ed68ae86c	Collector documentation (#113 ) * Initial draft of collector documentation * Add docs for all collectors * Update main README with links to docs * Fix link syntax	2018-11-18 17:05:37 +01:00
Dave Henderson	700bbb37c5	textfile collector: Skip BOM when present Signed-off-by: Dave Henderson <dhenderson@gmail.com>	2018-11-18 10:23:15 -05:00
Calle Pettersson	cb9da1ae22	Merge pull request #256 from martinlindhe/mssql-clean-instance-names Strip special chars from instance names	2018-08-31 18:16:43 +02:00
Calle Pettersson	7de316af9f	Strip special chars from instance names	2018-08-31 17:21:32 +02:00
Calle Pettersson	263ab8c444	Merge pull request #253 from kafecho/wildcard_query_escape Clarified that the % character has to be escaped	2018-08-28 12:19:36 +02:00
Guillaume Belrose	57449c4768	Clarified that the % character has to be escaped when using the wmi_exporter from the command prompt or batch files.	2018-08-28 08:58:08 +02:00
Calle Pettersson	fe7e5cb4d8	Merge pull request #241 from szook/protect-against-empty-result-set protect against empty wmi query result sets	2018-08-08 09:14:27 +02:00
Steve Zook	c156f2bcbe	protect against emtpy wmi query result sets If an WMI query were to return an empty result set, trying to access the first element in the result set would result in a `panic: runtime error: index out of range` error. add logic to explicitly check if the result set size is 0 and return an error rather. Fixes https://github.com/martinlindhe/wmi_exporter/issues/240	2018-08-07 15:47:39 -04:00
Calle Pettersson	832771b4a2	Merge pull request #238 from bbigras/patch-1 fix typo in exporter.go	2018-08-06 11:41:43 +02:00
Bruno Bigras	16fecfbc67	fix typo in exporter.go	2018-08-05 21:39:43 -04:00
Calle Pettersson	bad1e7f7b0	Merge pull request #237 from szook/fix-mssql-for-non-default-instances fix mssql for non-default sql instances	2018-08-04 08:33:23 +02:00
Steve Zook	c868c00e89	fix mssql for non-default sql instances the only sql servers I have access to are using the default `MSSQLSERVER` instance names. I was contacted by someone using a different instance name and it was failing. Found 2 bugs in the code: 1) I was returning the default `MSSQLSERVER` as an instance even if it wasn't found in the registry 2) learned that the WMI class naming scheme for non-default instances was not what I had coded. Changed to incorproate new knowledge.	2018-08-03 16:31:19 -04:00
Calle Pettersson	5035e97369	Merge pull request #236 from szook/add-mssql-accessmethod-class add mssql accessmethod class	2018-08-03 22:16:08 +02:00
Steve Zook	144715e3d2	remove persec from variable names removed persec from variable names but when I did that, there was some variable name collisions, so I went through and name-spaced the class variables. 1	2018-08-03 15:39:26 -04:00
Steve Zook	a20cf1274a	add mssql accessmethod class in the process of trying to build a grafana dashboard with "useful" mssql metrics, I was looking around for what metrics might be useful and came across an article of [15 SQL Server Performace Counters to Monitor](https://blogs.sentryone.com/allenwhite/sql-server-performance-counters-to-monitor/) two of the suggested metrics are provided by the AccessMethod class, which I was not yet capturing. So I added metrics for the Win32_PerfRawData_MSSQLSERVER_SQLServerAccessMethods class.	2018-08-03 13:45:51 -04:00
Calle Pettersson	626a25cd00	Merge pull request #235 from szook/reorder-functions reorder functions	2018-08-03 16:42:32 +02:00
Calle Pettersson	96dd456bb1	Merge pull request #234 from szook/fix-mssql-metric-name-typo fix mssql metric name type	2018-08-03 16:27:40 +02:00
Steve Zook	af1b8bf4d0	fix mssql metric name type found that I had one metric with an extra `s` in `_genstatss_`, making it inconsistent with it's siblings.	2018-08-03 09:52:15 -04:00
Steve Zook	d83615a818	reorder functions so that the two functions that list available child collectors are next to each other - should make less likely to not miss editing one of those when adding additional wmi classes also removed the 'filter' from the `mssqlFilterAvailableClassCollectors` function as it's not filtering anyting.	2018-08-03 09:48:32 -04:00
szook	fe4c61a70e	Add mssql collector (#230 ) add mssql collector	2018-08-02 08:42:02 +02:00
Calle Pettersson	143705bbf6	Merge pull request #227 from szook/add-worker-process-name-to-w3wp-processes append IIS worker process name to corresponding w3wp processes	2018-07-23 16:20:07 +02:00
Steve Zook	e8ffb736d0	add worker process name to w3wp processes modify the `process` collector so that the IIS worker process name is appended to the corresponding `w3wp` process. before: ``` wmi_process_private_bytes{creating_process_id="2068",process="w3wp",process_id="12308"} 7.18204928e+08 ``` after: ``` wmi_process_private_bytes{creating_process_id="2068",process="w3wp_our.website.com",process_id="12308"} 7.18204928e+08 ``` reason: We have some IIS servers hosting many .NET applications. When there is resource contention on one of those servers, it's nice to know which IIS application pool is the culprit. Having only the process_id to differentiate between w3wp processes requires additional work to figure out which is which. Also it does not allow for historial trending as the process_id can change across restarts.	2018-07-23 07:53:50 -04:00