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Conditional query for wmi fields added in IIS 8

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This commit is contained in:
Calle Pettersson
2017-07-15 13:56:09 +01:00
parent e8cfeef26c
commit f4195aa435
2 changed files with 180 additions and 90 deletions
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235
collector/iis.go
View File

@@ -9,15 +9,50 @@ package collector
import (
"flag"
"fmt"
"log"
"regexp"
"golang.org/x/sys/windows/registry"
"github.com/StackExchange/wmi"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/log"
)
func init() {
Factories["iis"] = NewIISCollector
iis_version = getIISVersion()
}
type simple_version struct {
major uint64
minor uint64
}
func getIISVersion() simple_version {
k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\InetStp\`, registry.QUERY_VALUE)
if err != nil {
log.Warnf("Couldn't open registry to determine IIS version: %v\n", err)
return simple_version{}
}
defer k.Close()
major, _, err := k.GetIntegerValue("MajorVersion")
if err != nil {
log.Warnf("Couldn't open registry to determine IIS version: %v\n", err)
return simple_version{}
}
minor, _, err := k.GetIntegerValue("MinorVersion")
if err != nil {
log.Warnf("Couldn't open registry to determine IIS version: %v\n", err)
return simple_version{}
}
log.Debugf("Detected IIS %d.%d\n", major, minor)
return simple_version{
major: major,
minor: minor,
}
}
var (
@@ -25,6 +60,8 @@ var (
siteBlacklist = flag.String("collector.iis.site-blacklist", "", "Regexp of sites to blacklist. Site name must both match whitelist and not match blacklist to be included.")
appWhitelist = flag.String("collector.iis.app-whitelist", ".+", "Regexp of apps to whitelist. App name must both match whitelist and not match blacklist to be included.")
appBlacklist = flag.String("collector.iis.app-blacklist", "", "Regexp of apps to blacklist. App name must both match whitelist and not match blacklist to be included.")
iis_version = simple_version{}
)
type IISCollector struct {
@@ -778,7 +815,7 @@ func NewIISCollector() (Collector, error) {
// to the provided prometheus Metric channel.
func (c *IISCollector) Collect(ch chan<- prometheus.Metric) error {
if desc, err := c.collect(ch); err != nil {
log.Println("[ERROR] failed collecting iis metrics:", desc, err)
log.Errorf("[ERROR] failed collecting iis metrics:", desc, err)
return err
}
return nil
@@ -851,41 +888,45 @@ type Win32_PerfRawData_APPPOOLCountersProvider_APPPOOLWAS struct {
type Win32_PerfRawData_W3SVCW3WPCounterProvider_W3SVCW3WP struct {
Name string
ActiveFlushedEntries uint64
CurrentFileCacheMemoryUsage uint64
CurrentFilesCached uint64
CurrentMetadataCached uint64
CurrentURIsCached uint64
FileCacheFlushes uint64
FileCacheHits uint64
FileCacheMisses uint64
MaximumFileCacheMemoryUsage uint64
MetadataCacheFlushes uint64
MetadataCacheHits uint64
MetadataCacheMisses uint64
OutputCacheCurrentFlushedItems uint64
OutputCacheCurrentItems uint64
OutputCacheCurrentMemoryUsage uint64
OutputCacheHitsPersec uint64
OutputCacheMissesPersec uint64
OutputCacheTotalFlushedItems uint64
OutputCacheTotalFlushes uint64
OutputCacheTotalHits uint64
OutputCacheTotalMisses uint64
TotalFilesCached uint64
TotalFlushedFiles uint64
TotalFlushedMetadata uint64
TotalFlushedURIs uint64
TotalMetadataCached uint64
TotalURIsCached uint64
URICacheFlushes uint64
URICacheHits uint64
URICacheMisses uint64
ActiveThreadsCount uint64
TotalThreads uint64
MaximumThreadsCount uint64
TotalHTTPRequestsServed uint64
ActiveRequests uint64
ActiveFlushedEntries uint64
CurrentFileCacheMemoryUsage uint64
CurrentFilesCached uint64
CurrentMetadataCached uint64
CurrentURIsCached uint64
FileCacheFlushes uint64
FileCacheHits uint64
FileCacheMisses uint64
MaximumFileCacheMemoryUsage uint64
MetadataCacheFlushes uint64
MetadataCacheHits uint64
MetadataCacheMisses uint64
OutputCacheCurrentFlushedItems uint64
OutputCacheCurrentItems uint64
OutputCacheCurrentMemoryUsage uint64
OutputCacheHitsPersec uint64
OutputCacheMissesPersec uint64
OutputCacheTotalFlushedItems uint64
OutputCacheTotalFlushes uint64
OutputCacheTotalHits uint64
OutputCacheTotalMisses uint64
TotalFilesCached uint64
TotalFlushedFiles uint64
TotalFlushedMetadata uint64
TotalFlushedURIs uint64
TotalMetadataCached uint64
TotalURIsCached uint64
URICacheFlushes uint64
URICacheHits uint64
URICacheMisses uint64
ActiveThreadsCount uint64
TotalThreads uint64
MaximumThreadsCount uint64
TotalHTTPRequestsServed uint64
ActiveRequests uint64
}
type Win32_PerfRawData_W3SVCW3WPCounterProvider_W3SVCW3WP_IIS8 struct {
Name string
Percent401HTTPResponseSent uint64
Percent403HTTPResponseSent uint64
Percent404HTTPResponseSent uint64
@@ -1567,64 +1608,80 @@ func (c *IISCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, e
float64(app.ActiveRequests),
name,
)
}
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent401HTTPResponseSent),
name,
"401",
)
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent403HTTPResponseSent),
name,
"403",
)
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent404HTTPResponseSent),
name,
"404",
)
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent500HTTPResponseSent),
name,
"500",
)
if iis_version.major >= 8 {
var dst_worker_iis8 []Win32_PerfRawData_W3SVCW3WPCounterProvider_W3SVCW3WP_IIS8
q = createQuery(&dst_worker_iis8, "Win32_PerfRawData_W3SVCW3WPCounterProvider_W3SVCW3WP", "")
if err := wmi.Query(q, &dst_worker_iis8); err != nil {
return nil, err
}
for _, app := range dst_worker_iis8 {
// Extract the apppool name from the format <PID>_<NAME>
name := workerProcessNameExtractor.ReplaceAllString(app.Name, "$1")
if name == "_Total" ||
c.appBlacklistPattern.MatchString(name) ||
!c.appWhitelistPattern.MatchString(name) {
continue
}
ch <- prometheus.MustNewConstMetric(
c.WebSocketRequestsActive,
prometheus.CounterValue,
float64(app.WebSocketActiveRequests),
name,
)
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent401HTTPResponseSent),
name,
"401",
)
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent403HTTPResponseSent),
name,
"403",
)
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent404HTTPResponseSent),
name,
"404",
)
ch <- prometheus.MustNewConstMetric(
c.RequestErrorsTotal,
prometheus.CounterValue,
float64(app.Percent500HTTPResponseSent),
name,
"500",
)
ch <- prometheus.MustNewConstMetric(
c.WebSocketConnectionAttempts,
prometheus.CounterValue,
float64(app.WebSocketConnectionAttemptsPerSec),
name,
)
ch <- prometheus.MustNewConstMetric(
c.WebSocketRequestsActive,
prometheus.CounterValue,
float64(app.WebSocketActiveRequests),
name,
)
ch <- prometheus.MustNewConstMetric(
c.WebSocketConnectionsAccepted,
prometheus.CounterValue,
float64(app.WebSocketConnectionsAcceptedPerSec),
name,
)
ch <- prometheus.MustNewConstMetric(
c.WebSocketConnectionAttempts,
prometheus.CounterValue,
float64(app.WebSocketConnectionAttemptsPerSec),
name,
)
ch <- prometheus.MustNewConstMetric(
c.WebSocketConnectionsRejected,
prometheus.CounterValue,
float64(app.WebSocketConnectionsRejectedPerSec),
name,
)
ch <- prometheus.MustNewConstMetric(
c.WebSocketConnectionsAccepted,
prometheus.CounterValue,
float64(app.WebSocketConnectionsAcceptedPerSec),
name,
)
ch <- prometheus.MustNewConstMetric(
c.WebSocketConnectionsRejected,
prometheus.CounterValue,
float64(app.WebSocketConnectionsRejectedPerSec),
name,
)
}
}
var dst_cache []Win32_PerfRawData_W3SVC_WebServiceCache

35
collector/wmi.go
View File

@@ -1,6 +1,12 @@
package collector
import "github.com/prometheus/client_golang/prometheus"
import (
"bytes"
"reflect"
"strings"
"github.com/prometheus/client_golang/prometheus"
)
// ...
const (
@@ -18,3 +24,30 @@ type Collector interface {
// Get new metrics and expose them via prometheus registry.
Collect(ch chan<- prometheus.Metric) (err error)
}
// This is adapted from StackExchange/wmi/wmi.go, and lets us change the class
// name being queried for:
// CreateQuery returns a WQL query string that queries all columns of src. where
// is an optional string that is appended to the query, to be used with WHERE
// clauses. In such a case, the "WHERE" string should appear at the beginning.
func createQuery(src interface{}, class, where string) string {
var b bytes.Buffer
b.WriteString("SELECT ")
s := reflect.Indirect(reflect.ValueOf(src))
t := s.Type()
if s.Kind() == reflect.Slice {
t = t.Elem()
}
if t.Kind() != reflect.Struct {
return ""
}
var fields []string
for i := 0; i < t.NumField(); i++ {
fields = append(fields, t.Field(i).Name)
}
b.WriteString(strings.Join(fields, ", "))
b.WriteString(" FROM ")
b.WriteString(class)
b.WriteString(" " + where)
return b.String()
}