mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2026-02-08 05:56:37 +00:00
418 lines
14 KiB
Go
418 lines
14 KiB
Go
// Copyright 2024 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build windows
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package mssql
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import (
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"errors"
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"fmt"
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"github.com/prometheus-community/windows_exporter/internal/pdh"
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"github.com/prometheus-community/windows_exporter/internal/types"
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"github.com/prometheus/client_golang/prometheus"
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)
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type collectorBufferManager struct {
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bufManPerfDataCollectors map[mssqlInstance]*pdh.Collector
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bufManPerfDataObject []perfDataCounterValuesBufMan
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bufManBackgroundwriterpages *prometheus.Desc
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bufManBuffercachehits *prometheus.Desc
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bufManBuffercachelookups *prometheus.Desc
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bufManCheckpointpages *prometheus.Desc
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bufManDatabasepages *prometheus.Desc
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bufManExtensionallocatedpages *prometheus.Desc
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bufManExtensionfreepages *prometheus.Desc
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bufManExtensioninuseaspercentage *prometheus.Desc
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bufManExtensionoutstandingIOcounter *prometheus.Desc
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bufManExtensionpageevictions *prometheus.Desc
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bufManExtensionpagereads *prometheus.Desc
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bufManExtensionpageunreferencedtime *prometheus.Desc
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bufManExtensionpagewrites *prometheus.Desc
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bufManFreeliststalls *prometheus.Desc
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bufManIntegralControllerSlope *prometheus.Desc
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bufManLazywrites *prometheus.Desc
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bufManPagelifeexpectancy *prometheus.Desc
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bufManPagelookups *prometheus.Desc
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bufManPagereads *prometheus.Desc
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bufManPagewrites *prometheus.Desc
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bufManReadaheadpages *prometheus.Desc
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bufManReadaheadtime *prometheus.Desc
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bufManTargetpages *prometheus.Desc
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}
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type perfDataCounterValuesBufMan struct {
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BufManBackgroundWriterPagesPerSec float64 `perfdata:"Background writer pages/sec"`
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BufManBufferCacheHitRatio float64 `perfdata:"Buffer cache hit ratio"`
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BufManBufferCacheHitRatioBase float64 `perfdata:"Buffer cache hit ratio base,secondvalue"`
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BufManCheckpointPagesPerSec float64 `perfdata:"Checkpoint pages/sec"`
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BufManDatabasePages float64 `perfdata:"Database pages"`
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BufManExtensionAllocatedPages float64 `perfdata:"Extension allocated pages"`
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BufManExtensionFreePages float64 `perfdata:"Extension free pages"`
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BufManExtensionInUseAsPercentage float64 `perfdata:"Extension in use as percentage"`
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BufManExtensionOutstandingIOCounter float64 `perfdata:"Extension outstanding IO counter"`
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BufManExtensionPageEvictionsPerSec float64 `perfdata:"Extension page evictions/sec"`
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BufManExtensionPageReadsPerSec float64 `perfdata:"Extension page reads/sec"`
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BufManExtensionPageUnreferencedTime float64 `perfdata:"Extension page unreferenced time"`
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BufManExtensionPageWritesPerSec float64 `perfdata:"Extension page writes/sec"`
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BufManFreeListStallsPerSec float64 `perfdata:"Free list stalls/sec"`
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BufManIntegralControllerSlope float64 `perfdata:"Integral Controller Slope"`
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BufManLazyWritesPerSec float64 `perfdata:"Lazy writes/sec"`
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BufManPageLifeExpectancy float64 `perfdata:"Page life expectancy"`
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BufManPageLookupsPerSec float64 `perfdata:"Page lookups/sec"`
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BufManPageReadsPerSec float64 `perfdata:"Page reads/sec"`
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BufManPageWritesPerSec float64 `perfdata:"Page writes/sec"`
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BufManReadaheadPagesPerSec float64 `perfdata:"Readahead pages/sec"`
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BufManReadaheadTimePerSec float64 `perfdata:"Readahead time/sec"`
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BufManTargetPages float64 `perfdata:"Target pages"`
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}
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func (c *Collector) buildBufferManager() error {
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var err error
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c.bufManPerfDataCollectors = make(map[mssqlInstance]*pdh.Collector, len(c.mssqlInstances))
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errs := make([]error, 0, len(c.mssqlInstances))
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for _, sqlInstance := range c.mssqlInstances {
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c.bufManPerfDataCollectors[sqlInstance], err = pdh.NewCollector[perfDataCounterValuesBufMan](pdh.CounterTypeRaw, c.mssqlGetPerfObjectName(sqlInstance, "Buffer Manager"), nil)
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if err != nil {
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errs = append(errs, fmt.Errorf("failed to create Buffer Manager collector for instance %s: %w", sqlInstance.name, err))
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}
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}
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c.bufManBackgroundwriterpages = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_background_writer_pages"),
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"(BufferManager.Backgroundwriterpages)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManBuffercachehits = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_buffer_cache_hits"),
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"(BufferManager.Buffercachehitratio)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManBuffercachelookups = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_buffer_cache_lookups"),
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"(BufferManager.Buffercachehitratio_Base)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManCheckpointpages = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_checkpoint_pages"),
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"(BufferManager.Checkpointpages)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManDatabasepages = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_database_pages"),
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"(BufferManager.Databasepages)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensionallocatedpages = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_allocated_pages"),
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"(BufferManager.Extensionallocatedpages)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensionfreepages = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_free_pages"),
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"(BufferManager.Extensionfreepages)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensioninuseaspercentage = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_in_use_as_percentage"),
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"(BufferManager.Extensioninuseaspercentage)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensionoutstandingIOcounter = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_outstanding_io"),
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"(BufferManager.ExtensionoutstandingIOcounter)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensionpageevictions = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_page_evictions"),
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"(BufferManager.Extensionpageevictions)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensionpagereads = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_page_reads"),
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"(BufferManager.Extensionpagereads)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensionpageunreferencedtime = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_page_unreferenced_seconds"),
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"(BufferManager.Extensionpageunreferencedtime)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManExtensionpagewrites = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_extension_page_writes"),
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"(BufferManager.Extensionpagewrites)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManFreeliststalls = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_free_list_stalls"),
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"(BufferManager.Freeliststalls)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManIntegralControllerSlope = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_integral_controller_slope"),
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"(BufferManager.IntegralControllerSlope)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManLazywrites = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_lazywrites"),
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"(BufferManager.Lazywrites)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManPagelifeexpectancy = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_page_life_expectancy_seconds"),
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"(BufferManager.Pagelifeexpectancy)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManPagelookups = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_page_lookups"),
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"(BufferManager.Pagelookups)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManPagereads = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_page_reads"),
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"(BufferManager.Pagereads)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManPagewrites = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_page_writes"),
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"(BufferManager.Pagewrites)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManReadaheadpages = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_read_ahead_pages"),
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"(BufferManager.Readaheadpages)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManReadaheadtime = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_read_ahead_issuing_seconds"),
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"(BufferManager.Readaheadtime)",
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[]string{"mssql_instance"},
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nil,
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)
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c.bufManTargetpages = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "bufman_target_pages"),
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"(BufferManager.Targetpages)",
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[]string{"mssql_instance"},
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nil,
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)
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return errors.Join(errs...)
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}
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func (c *Collector) collectBufferManager(ch chan<- prometheus.Metric) error {
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return c.collect(ch, subCollectorBufferManager, c.bufManPerfDataCollectors, c.collectBufferManagerInstance)
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}
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func (c *Collector) collectBufferManagerInstance(ch chan<- prometheus.Metric, sqlInstance mssqlInstance, perfDataCollector *pdh.Collector) error {
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err := perfDataCollector.Collect(&c.bufManPerfDataObject)
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if err != nil {
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return fmt.Errorf("failed to collect %s metrics: %w", c.mssqlGetPerfObjectName(sqlInstance, "Buffer Manager"), err)
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}
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for _, data := range c.bufManPerfDataObject {
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ch <- prometheus.MustNewConstMetric(
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c.bufManBackgroundwriterpages,
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prometheus.CounterValue,
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data.BufManBackgroundWriterPagesPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManBuffercachehits,
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prometheus.GaugeValue,
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data.BufManBufferCacheHitRatio,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManBuffercachelookups,
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prometheus.GaugeValue,
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data.BufManBufferCacheHitRatioBase,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManCheckpointpages,
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prometheus.CounterValue,
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data.BufManCheckpointPagesPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManDatabasepages,
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prometheus.GaugeValue,
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data.BufManDatabasePages,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensionallocatedpages,
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prometheus.GaugeValue,
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data.BufManExtensionAllocatedPages,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensionfreepages,
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prometheus.GaugeValue,
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data.BufManExtensionFreePages,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensioninuseaspercentage,
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prometheus.GaugeValue,
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data.BufManExtensionInUseAsPercentage,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensionoutstandingIOcounter,
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prometheus.GaugeValue,
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data.BufManExtensionOutstandingIOCounter,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensionpageevictions,
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prometheus.CounterValue,
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data.BufManExtensionPageEvictionsPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensionpagereads,
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prometheus.CounterValue,
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data.BufManExtensionPageReadsPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensionpageunreferencedtime,
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prometheus.GaugeValue,
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data.BufManExtensionPageUnreferencedTime,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManExtensionpagewrites,
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prometheus.CounterValue,
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data.BufManExtensionPageWritesPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManFreeliststalls,
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prometheus.CounterValue,
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data.BufManFreeListStallsPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManIntegralControllerSlope,
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prometheus.GaugeValue,
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data.BufManIntegralControllerSlope,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManLazywrites,
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prometheus.CounterValue,
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data.BufManLazyWritesPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManPagelifeexpectancy,
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prometheus.GaugeValue,
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data.BufManPageLifeExpectancy,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManPagelookups,
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prometheus.CounterValue,
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data.BufManPageLookupsPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManPagereads,
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prometheus.CounterValue,
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data.BufManPageReadsPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManPagewrites,
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prometheus.CounterValue,
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data.BufManPageWritesPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManReadaheadpages,
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prometheus.CounterValue,
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data.BufManReadaheadPagesPerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManReadaheadtime,
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prometheus.CounterValue,
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data.BufManReadaheadTimePerSec,
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sqlInstance.name,
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)
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ch <- prometheus.MustNewConstMetric(
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c.bufManTargetpages,
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prometheus.GaugeValue,
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data.BufManTargetPages,
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sqlInstance.name,
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)
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}
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return nil
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}
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func (c *Collector) closeBufferManager() {
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for _, perfDataCollectors := range c.bufManPerfDataCollectors {
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perfDataCollectors.Close()
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}
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}
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