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mirror_zfs/cmd/zpool_influxdb/dashboards/grafana/ZFS-pool-latency-heatmaps-influxdb.json

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Add zpool_influxdb command A zpool_influxdb command is introduced to ease the collection of zpool statistics into the InfluxDB time-series database. Examples are given on how to integrate with the telegraf statistics aggregator, a companion to influxdb. Finally, a grafana dashboard template is included to show how pool latency distributions can be visualized in a ZFS + telegraf + influxdb + grafana environment. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Richard Elling <Richard.Elling@RichardElling.com> Closes #10786
2020-10-09 19:29:21 +03:00
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"operator": "=~",
"value": "/^$poolname$/"
}
]
}
],
"timeFrom": null,
"timeShift": null,
"title": "Trim Write Queue",
"tooltip": {
"show": true,
"showHistogram": true
},
"type": "heatmap",
"xAxis": {
"show": true
},
"xBucketNumber": null,
"xBucketSize": null,
"yAxis": {
"decimals": 0,
"format": "s",
"logBase": 1,
"max": null,
"min": null,
"show": true,
"splitFactor": null
},
"yBucketBound": "auto",
"yBucketNumber": null,
"yBucketSize": null
},
{
"cards": {
"cardPadding": null,
"cardRound": null
},
"color": {
"cardColor": "#b4ff00",
"colorScale": "sqrt",
"colorScheme": "interpolateOranges",
"exponent": 0.5,
"mode": "spectrum"
},
"dataFormat": "tsbuckets",
"datasource": "${DS_MACBOOK-INFLUX}",
"description": "Latency histogram for the disk write operations of a ZFS pool",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"gridPos": {
"h": 8,
"w": 9,
"x": 15,
"y": 20
},
"heatmap": {},
"hideZeroBuckets": false,
"highlightCards": true,
"id": 17,
"legend": {
"show": false
},
"reverseYBuckets": false,
"targets": [
{
"alias": "$tag_le",
"groupBy": [
{
"params": [
"$__interval"
],
"type": "time"
},
{
"params": [
"le"
],
"type": "tag"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "zpool_latency",
"orderByTime": "ASC",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"disk_write"
],
"type": "field"
},
{
"params": [],
"type": "last"
},
{
"params": [
"1s"
],
"type": "non_negative_derivative"
}
]
],
"tags": [
{
"key": "host",
"operator": "=~",
"value": "/^$hostname$/"
},
{
"condition": "AND",
"key": "name",
"operator": "=~",
"value": "/^$poolname$/"
}
]
}
],
"timeFrom": null,
"timeShift": null,
"title": "Disk Write Queue",
"tooltip": {
"show": true,
"showHistogram": true
},
"type": "heatmap",
"xAxis": {
"show": true
},
"xBucketNumber": null,
"xBucketSize": null,
"yAxis": {
"decimals": 0,
"format": "s",
"logBase": 1,
"max": null,
"min": null,
"show": true,
"splitFactor": null
},
"yBucketBound": "auto",
"yBucketNumber": null,
"yBucketSize": null
},
{
"collapsed": false,
"datasource": "${DS_MACBOOK-INFLUX}",
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 28
},
"id": 19,
"panels": [],
"title": "About",
"type": "row"
},
{
"content": "I/O requests that are satisfied by accessing pool devices are managed by the ZIO scheduler.\nThe total latency is measured from the start of the I/O to completion by the disk.\nLatency through each queue is shown prior to its submission to the disk queue.\n\nThis view is useful for observing the effects of tuning the ZIO scheduler min and max values\n(see zfs-module-parameters(5) and [ZFS on Linux Module Parameters](https://openzfs.github.io/openzfs-docs/Performance%20and%20tuning/ZFS%20on%20Linux%20Module%20Parameters.html)):\n+ *zfs_vdev_max_active* controls the ZIO scheduler's disk queue depth (do not confuse with the block device's nr_requests)\n+ *zfs_vdev_sync_read_min_active* and *zfs_vdev_sync_read_max_active* control the synchronous queue for reads: most reads are sync\n+ *zfs_vdev_sync_write_min_active* and *zfs_vdev_sync_write_max_active* control the synchronous queue for writes: \nusually metadata or user data depending on the \"sync\" property setting or I/Os that are requested to be flushed\n+ *zfs_vdev_async_read_min_active* and *zfs_vdev_async_read_max_active* control the asynchronous queue for reads: usually prefetches\n+ *zfs_vdev_async_write_min_active* and *zfs_vdev_async_write_max_active* control the asynchronous queue for writes: \nusually the bulk of all writes at transaction group (txg) commit\n+ *zfs_vdev_scrub_min_active* and *zfs_vdev_scrub_max_active* controls the scan reads: usually scrub or resilver\n\n",
"datasource": "${DS_MACBOOK-INFLUX}",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"gridPos": {
"h": 15,
"w": 16,
"x": 0,
"y": 29
},
"id": 21,
"mode": "markdown",
"targets": [
{
"groupBy": [
{
"params": [
"$__interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"orderByTime": "ASC",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"value"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
}
],
"timeFrom": null,
"timeShift": null,
"title": "About ZFS Pool All Queues Read/Write Latency Histograms",
"type": "text"
},
{
"colors": [
"rgba(50, 172, 45, 0.97)",
"rgba(237, 129, 40, 0.89)",
"rgba(245, 54, 54, 0.9)"
],
"composites": [],
"content": "graph LR\nIO((I/O request)) --> SR(sync read queue)\nIO --> SW(sync write queue)\nIO --> AR(async read queue)\nIO --> AW(async write queue)\nIO --> SCRUB(scrub queue)\nIO --> TRIM(trim queue)\nSR --> DISKQ(disk queue)\nSW --> DISKQ\nAR --> DISKQ\nAW --> DISKQ\nSCRUB --> DISKQ\nTRIM --> DISKQ\nDISKQ --> DISK((disk))\n",
"datasource": "${DS_MACBOOK-INFLUX}",
"decimals": 2,
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"format": "none",
"graphId": "diagram_23",
"gridPos": {
"h": 15,
"w": 7,
"x": 16,
"y": 29
},
"id": 23,
"init": {
"arrowMarkerAbsolute": true,
"cloneCssStyles": true,
"flowchart": {
"htmlLabels": true,
"useMaxWidth": true
},
"gantt": {
"barGap": 4,
"barHeight": 20,
"fontFamily": "\"Open-Sans\", \"sans-serif\"",
"fontSize": 11,
"gridLineStartPadding": 35,
"leftPadding": 75,
"numberSectionStyles": 3,
"titleTopMargin": 25,
"topPadding": 50
},
"logLevel": 3,
"securityLevel": "loose",
"sequence": {
"actorMargin": 50,
"bottomMarginAdj": 1,
"boxMargin": 10,
"boxTextMargin": 5,
"diagramMarginX": 50,
"diagramMarginY": 10,
"height": 65,
"messageMargin": 35,
"mirrorActors": true,
"noteMargin": 10,
"useMaxWidth": true,
"width": 150
},
"startOnLoad": false,
"theme": "dark"
},
"legend": {
"avg": true,
"current": true,
"gradient": {
"enabled": true,
"show": true
},
"max": true,
"min": true,
"show": false,
"total": true
},
"mappingType": 1,
"mappingTypes": [
{
"$$hashKey": "object:155",
"name": "value to text",
"value": 1
},
{
"$$hashKey": "object:156",
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"maxWidth": false,
"mermaidServiceUrl": "",
"metricCharacterReplacements": [],
"moddedSeriesVal": 0,
"mode": "content",
"nullPointMode": "connected",
"seriesOverrides": [],
"style": "",
"styleValues": {},
"targets": [
{
"groupBy": [
{
"params": [
"$__interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"hide": true,
"orderByTime": "ASC",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"value"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
}
],
"themes": [
"default",
"dark",
"forest",
"neutral"
],
"thresholds": "0,10",
"timeFrom": null,
"timeShift": null,
"title": "Panel Title",
"type": "jdbranham-diagram-panel",
"valueMaps": [
{
"$$hashKey": "object:151",
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "avg",
"valueOptions": [
"avg",
"min",
"max",
"total",
"current"
]
}
],
"refresh": false,
"schemaVersion": 22,
"style": "dark",
"tags": [
"ZFS",
"Latency",
"Histogram"
],
"templating": {
"list": [
{
"allValue": null,
"current": {},
"datasource": "${DS_MACBOOK-INFLUX}",
"definition": "show tag values from \"zpool_latency\" with key = \"host\"",
"hide": 0,
"includeAll": false,
"index": -1,
"label": null,
"multi": false,
"name": "hostname",
"options": [],
"query": "show tag values from \"zpool_latency\" with key = \"host\"",
"refresh": 1,
"regex": "/([-a-zA-Z-0-9]+)/",
"skipUrlSync": false,
"sort": 5,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
},
{
"allValue": null,
"current": {},
"datasource": "${DS_MACBOOK-INFLUX}",
"definition": "show tag values from \"zpool_latency\" with key = \"name\" where \"host\" =~ /^$hostname/",
"hide": 0,
"includeAll": false,
"index": -1,
"label": null,
"multi": false,
"name": "poolname",
"options": [],
"query": "show tag values from \"zpool_latency\" with key = \"name\" where \"host\" =~ /^$hostname/",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"sort": 5,
"tagValuesQuery": "",
"tags": [],
"tagsQuery": "",
"type": "query",
"useTags": false
}
]
},
"time": {
"from": "2020-05-25T21:34:30.137Z",
"to": "2020-05-25T21:39:54.445Z"
},
"timepicker": {
"refresh_intervals": [
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
]
},
"timezone": "",
"title": "ZFS Pool Latency Heatmaps Influxdb",
"uid": "TbB4-DkGz",
"variables": {
"list": []
},
"version": 2
}
Reference in New Issue Copy Permalink