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Merge pull request #1113 from tehseenshahab/tesh-logical-disk-collector-extension

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Add Avg logical disk RW Queue metrics
This commit is contained in:
Ben Reedy 2023-01-03 10:12:42 +10:00 committed by GitHub
commit 260e34394a
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3 changed files with 53 additions and 15 deletions
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32
collector/logical_disk.go
View File

@ -30,6 +30,8 @@ var (
// A LogicalDiskCollector is a Prometheus collector for perflib logicalDisk metrics
type LogicalDiskCollector struct {
RequestsQueued *prometheus.Desc
AvgReadQueue *prometheus.Desc
AvgWriteQueue *prometheus.Desc
ReadBytesTotal *prometheus.Desc
ReadsTotal *prometheus.Desc
WriteBytesTotal *prometheus.Desc
@ -60,6 +62,20 @@ func NewLogicalDiskCollector() (Collector, error) {
nil,
),
AvgReadQueue: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "avg_read_requests_queued"),
"Average number of read requests that were queued for the selected disk during the sample interval (LogicalDisk.AvgDiskReadQueueLength)",
[]string{"volume"},
nil,
),
AvgWriteQueue: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "avg_write_requests_queued"),
"Average number of write requests that were queued for the selected disk during the sample interval (LogicalDisk.AvgDiskWriteQueueLength)",
[]string{"volume"},
nil,
),
ReadBytesTotal: prometheus.NewDesc(
prometheus.BuildFQName(Namespace, subsystem, "read_bytes_total"),
"The number of bytes transferred from the disk during read operations (LogicalDisk.DiskReadBytesPerSec)",
@ -172,6 +188,8 @@ func (c *LogicalDiskCollector) Collect(ctx *ScrapeContext, ch chan<- prometheus.
type logicalDisk struct {
Name string
CurrentDiskQueueLength float64 `perflib:"Current Disk Queue Length"`
AvgDiskReadQueueLength float64 `perflib:"Avg. Disk Read Queue Length"`
AvgDiskWriteQueueLength float64 `perflib:"Avg. Disk Write Queue Length"`
DiskReadBytesPerSec float64 `perflib:"Disk Read Bytes/sec"`
DiskReadsPerSec float64 `perflib:"Disk Reads/sec"`
DiskWriteBytesPerSec float64 `perflib:"Disk Write Bytes/sec"`
@ -207,6 +225,20 @@ func (c *LogicalDiskCollector) collect(ctx *ScrapeContext, ch chan<- prometheus.
volume.Name,
)
ch <- prometheus.MustNewConstMetric(
c.AvgReadQueue,
prometheus.GaugeValue,
volume.AvgDiskReadQueueLength*ticksToSecondsScaleFactor,
volume.Name,
)
ch <- prometheus.MustNewConstMetric(
c.AvgWriteQueue,
prometheus.GaugeValue,
volume.AvgDiskWriteQueueLength*ticksToSecondsScaleFactor,
volume.Name,
)
ch <- prometheus.MustNewConstMetric(
c.ReadBytesTotal,
prometheus.CounterValue,

2
docs/collector.logical_disk.md
View File

@ -24,6 +24,8 @@ If given, a disk needs to *not* match the blacklist regexp in order for the corr
Name | Description | Type | Labels
-----|-------------|------|-------
`requests_queued` | Number of requests outstanding on the disk at the time the performance data is collected | gauge | `volume`
`avg_read_requests_queued` | Average number of read requests that were queued for the selected disk during the sample interval | gauge | `volume`
`avg_write_requests_queued` | Average number of write requests that were queued for the selected disk during the sample interval | gauge | `volume`
`read_bytes_total` | Rate at which bytes are transferred from the disk during read operations | counter | `volume`
`reads_total` | Rate of read operations on the disk | counter | `volume`
`write_bytes_total` | Rate at which bytes are transferred to the disk during write operations | counter | `volume`

4
tools/e2e-output.txt
View File

@ -141,6 +141,10 @@ windows_exporter_collector_timeout{collector="textfile"} 0
# TYPE windows_logical_disk_reads_total counter
# HELP windows_logical_disk_requests_queued The number of requests queued to the disk (LogicalDisk.CurrentDiskQueueLength)
# TYPE windows_logical_disk_requests_queued gauge
# HELP windows_logical_disk_avg_read_requests_queued Average number of read requests that were queued for the selected disk during the sample interval (LogicalDisk.AvgDiskReadQueueLength)
# TYPE windows_logical_disk_avg_read_requests_queued gauge
# HELP windows_logical_disk_avg_write_requests_queued Average number of write requests that were queued for the selected disk during the sample interval (LogicalDisk.AvgDiskWriteQueueLength)
# TYPE windows_logical_disk_avg_write_requests_queued gauge
# HELP windows_logical_disk_size_bytes Total space in bytes, updates every 10-15 min (LogicalDisk.PercentFreeSpace_Base)
# TYPE windows_logical_disk_size_bytes gauge
# HELP windows_logical_disk_split_ios_total The number of I/Os to the disk were split into multiple I/Os (LogicalDisk.SplitIOPerSec)