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It is recommended to always keep an eye on this metric to avoid unexpected cardinality \"explosions\".\n\nThe higher churn rate is, the more resources required to handle it. Consider to keep the churn rate as low as possible.\n\nTo investigate stats about most expensive series use `api/v1/status/tsdb` handler. More details here https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#url-format\n\nGood references to read:\n* https://www.robustperception.io/cardinality-is-key\n* https://valyala.medium.com/high-cardinality-tsdb-benchmarks-victoriametrics-vs-timescaledb-vs-influxdb-13e6ee64dd6b", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [ { "matcher": { "id": "byName", "options": "new series over 24h" }, "properties": [ { "id": "custom.axisPlacement", "value": "right" }, { "id": "custom.axisSoftMin", "value": 0 } ] } ] }, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 31 }, "id": 102, "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "exemplar": true, "expr": "sum(rate(vm_new_timeseries_created_total{job=~\"$job_storage\", instance=~\"$instance\"}[$__rate_interval]))", "interval": "", "legendFormat": "churn rate", "refId": "A" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "exemplar": true, "expr": "sum(increase(vm_new_timeseries_created_total{job=~\"$job_storage\", instance=~\"$instance\"}[24h]))", "hide": false, "interval": "", "legendFormat": "new series over 24h", "refId": "B" } ], "title": "Churn rate ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "The percentage of slow inserts comparing to total insertion rate during the last 5 minutes. \n\nThe less value is better. If percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of active time series. \n\nIn general, VictoriaMetrics requires ~1KB or RAM per active time series, so it should be easy calculating the required amounts of RAM for the current workload according to capacity planning docs. But the resulting number may be far from the real number because the required amounts of memory depends on many other factors such as the number of labels per time series and the length of label values. See also https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 10, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "line+area" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "transparent" }, { "color": "red", "value": 0.1 } ] }, "unit": "percentunit" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 31 }, "id": 108, "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "max(\n rate(vm_slow_row_inserts_total{job=~\"$job_storage\"}[$__rate_interval]) \n / rate(vm_rows_added_to_storage_total{job=~\"$job_storage\"}[$__rate_interval])\n)", "interval": "", "legendFormat": "slow inserts", "range": true, "refId": "A" } ], "title": "Slow inserts", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "The value is above 0 when the vmstorage at the given `addr` communicates to the given vminsert node that it cannot accept new data because it is in the read-only mode.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": 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"prometheus", "uid": "$ds" }, "editorMode": "code", "exemplar": true, "expr": "sum(vm_rpc_vmstorage_is_read_only{job=~\"$job_insert\", instance=~\"$instance\"}) by(instance, addr) > 0", "format": "time_series", "interval": "", "intervalFactor": 1, "legendFormat": "{{instance}} => {{addr}}", "range": true, "refId": "A" } ], "title": "Storage in readonly status for vminsert ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Slow queries according to `search.logSlowQueryDuration` flag, which is `5s` by default.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 10, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 39 }, "id": 107, "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "expr": "sum(rate(vm_slow_queries_total{job=~\"$job_select\", instance=~\"$instance\"}[$__rate_interval]))", "interval": "", "legendFormat": "slow queries rate", "refId": "A" } ], "title": "Slow queries rate ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Merge assist happens when vmstorage can't keep up with merging parts. This is usually a sign of overload for vmstorage.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "bars", "fillOpacity": 100, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 47 }, "id": 170, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true }, "tooltip": { "mode": "multi", "sort": "desc" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "exemplar": true, "expr": "sum(increase(vm_assisted_merges_total{job=~\"$job_storage\", instance=~\"$instance\"}[$__rate_interval])) by(type) > 0", "format": "time_series", "interval": "5m", "intervalFactor": 1, "legendFormat": "__auto", "range": true, "refId": "A" } ], "title": "Assisted merges ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "VictoriaMetrics limits the number of labels per each metric with `-maxLabelsPerTimeseries` command-line flag.\n\nThis prevents from ingesting metrics with too many labels. The value of `maxLabelsPerTimeseries` must be adjusted for your workload.\n\nWhen limit is exceeded (graph is > 0) - extra labels are dropped, which could result in unexpected identical time series.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 10, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "decimals": 2, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 47 }, "id": 116, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "exemplar": true, "expr": "sum(increase(vm_metrics_with_dropped_labels_total{job=~\"$job_insert\", instance=~\"$instance\"}[$__rate_interval]))", "format": "time_series", "hide": false, "interval": "", "intervalFactor": 1, "legendFormat": "metrics with dropped labels", "refId": "A" } ], "title": "Labels limit exceeded ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Shows the percentage of used cache size from the allowed size by type. \nValues close to 100% show the maximum potential utilization.\nValues close to 0% show that cache is underutilized.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "mappings": [], "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "percentunit" }, "overrides": [] }, "gridPos": { "h": 9, "w": 12, "x": 0, "y": 55 }, "id": 144, "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true }, "tooltip": { "mode": "multi", "sort": "desc" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "exemplar": true, "expr": "max(\n vm_cache_size_bytes{job=~\"$job_storage\", instance=~\"$instance\"} \n /\n vm_cache_size_max_bytes{job=~\"$job\", instance=~\"$instance\"}\n) by(type)", "interval": "", "legendFormat": "__auto", "range": true, "refId": "A" } ], "title": "Cache usage % by type ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Shows cache miss ratio. Lower is better.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "max": 1, "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "percentunit" }, "overrides": [] }, "gridPos": { "h": 9, "w": 12, "x": 12, "y": 55 }, "id": 58, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last 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"Value" }, "properties": [ { "id": "custom.hidden", "value": true } ] }, { "matcher": { "id": "byName", "options": "Time" }, "properties": [ { "id": "custom.hidden", "value": true } ] } ] }, "gridPos": { "h": 7, "w": 24, "x": 0, "y": 64 }, "id": 183, "options": { "footer": { "fields": "", "reducer": [ "sum" ], "show": false }, "showHeader": true, "sortBy": [ { "desc": true, "displayName": "job" } ] }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "exemplar": false, "expr": "sum(flag{is_set=\"true\", job=~\"$job\", instance=~\"$instance\"}) by(job, instance, name, value)", "format": "table", "instant": true, "legendFormat": "__auto", "range": false, "refId": "A" } ], "title": "Non-default flags", "transformations": [ { "id": "groupBy", "options": { "fields": { "instance": { "aggregations": [ "uniqueValues" ], "operation": "aggregate" }, "job": { "aggregations": [], "operation": "groupby" }, "name": { "aggregations": 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"lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [] }, "gridPos": { "h": 9, "w": 12, "x": 0, "y": 21 }, "id": 76, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "sum(rate(vm_rpc_rows_pushed_total{job=~\"$job\",instance=~\"$instance\"}[$__rate_interval]))", "format": "time_series", "intervalFactor": 1, "legendFormat": "Pushed", "range": true, "refId": "B" }, { "datasource": { "type": 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It is always equal to the number of CPUs. \n\nWhen `current` hits `max` constantly, it means storage is overloaded and requires more CPU or faster disk.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "mappings": [], "thresholds": { "mode": "absolute", "steps": [ { "color": "green", "value": null }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [ { "matcher": { "id": "byName", "options": "max" }, "properties": [ { "id": "color", "value": { "fixedColor": "#C4162A", "mode": "fixed" } } ] } ] }, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 21 }, "id": 133, "links": [ { "targetBlank": true, "title": "Related discussion", "url": "https://github.com/VictoriaMetrics/VictoriaMetrics/issues/632" } ], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "exemplar": true, "expr": "max(\n max_over_time(vm_concurrent_insert_current{job=~\"$job_storage\", \n instance=~\"$instance\"}[$__rate_interval])\n)", "interval": "", "legendFormat": "current", "range": true, "refId": "A" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "exemplar": true, "expr": "min(vm_concurrent_insert_capacity{job=~\"$job_storage\", instance=~\"$instance\"})", "hide": false, "interval": "", "legendFormat": "max", "range": true, "refId": "B" } ], "title": "Concurrent flushes on disk ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "The number of on-going merges in storage nodes. 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It is recommended to have at least 20% of free disk space for the best performance.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "line" } }, "links": [ { "targetBlank": true, "title": "Drilldown", "url": "/d/oS7Bi_0Wz?viewPanel=200&var-ds=$ds&var-instance=$instance&${__url_time_range}" } ], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green", "value": null }, { "color": "red", "value": 80 } ] }, "unit": "percentunit" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 37 }, "id": 20, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "desc" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "max(\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n (\n sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n ) \n)", "format": "time_series", "intervalFactor": 1, "legendFormat": "max", "range": true, "refId": "A" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "min(\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n (\n sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n ) \n)", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "min", "range": true, "refId": "B" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "quantile(0.5,\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) /\n (\n sum(vm_free_disk_space_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance) +\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n ) \n)", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "median", "range": true, "refId": "C" } ], "title": "Disk space usage % ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "The max number of data parts of LSM tree across all storage nodes.\nHigh number of parts (the hard limit is 512) is an evidence of slow merge performance - check the resource utilization.\n* `indexdb` - inverted index\n* `storage/small` - recently added parts of data ingested into storage (hot data)\n* `storage/big` - small parts gradually merged into big parts (cold data)", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green", "value": null }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 37 }, "id": 22, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "desc" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "max(vm_parts{job=~\"$job_storage\", instance=~\"$instance\"}) by(type)", "format": "time_series", "interval": "", "intervalFactor": 1, "legendFormat": "__auto", "range": true, "refId": "A" } ], "title": "LSM parts max by type ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Shows the percentage of used disk space by type: datapoints or indexdb. Normally, indexdb takes much less space comparing to datapoints. But with high churn rate the size of the indexdb could grow significantly.\n\nThe sum of the % can be > 100% since panel shows max % per-job and per-instance. It means different instance can have different ratio between datapoints and indexdb size.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "line" } }, "links": [ { "targetBlank": true, "title": "Drilldown", "url": "/d/oS7Bi_0Wz?viewPanel=201&var-ds=$ds&var-instance=$instance&${__url_time_range}" } ], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green", "value": null } ] }, "unit": "percentunit" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 45 }, "id": 202, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "desc" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "max(\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\", type=~\"indexdb.*\"}) by(job, instance)\n / \n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n)", "format": "time_series", "intervalFactor": 1, "legendFormat": "indexdb", "range": true, "refId": "A" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "max(\n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\", type!~\"indexdb.*\"}) by(job, instance)\n / \n sum(vm_data_size_bytes{job=~\"$job\", instance=~\"$instance\"}) by(job, instance)\n)", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "datapoints", "range": true, "refId": "B" } ], "title": "Disk space usage % by type ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "How many datapoints are in RAM queue waiting to be written into storage. The number of pending data points should be in the range from 0 to `2*`, since VictoriaMetrics pushes pending data to persistent storage every second. The index datapoints value in general is much lower.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green", "value": null }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [ { "matcher": { "id": "byName", "options": "pending index entries" }, "properties": [ { "id": "unit", "value": "none" }, { "id": "decimals", "value": 3 } ] } ] }, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 45 }, "id": 14, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "sum(max_over_time(vm_pending_rows{job=~\"$job_storage\", instance=~\"$instance\", type=\"storage\"}[$__rate_interval]))", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "pending datapoints", "range": true, "refId": "A" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "sum(max_over_time(vm_pending_rows{job=~\"$job_storage\", instance=~\"$instance\", type=\"indexdb\"}[$__rate_interval]))", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "pending index entries", "range": true, "refId": "B" } ], "title": "Pending datapoints ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Shows how many rows were ignored on insertion due to corrupted or out of retention timestamps.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "mappings": [], "thresholds": { "mode": "absolute", "steps": [ { "color": "green", "value": null }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 53 }, "id": 135, "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "none" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "exemplar": true, "expr": "sum(increase(vm_rows_ignored_total{job=~\"$job_storage\", instance=~\"$instance\"}[1h])) by (reason)", "interval": "", "legendFormat": "__auto", "range": true, "refId": "A" } ], "title": "Rows ignored for last 1h ($instance)", "type": "timeseries" } ], "title": "vmstorage ($instance)", "type": "row" }, { "collapsed": true, "datasource": { "type": "prometheus", "uid": "$ds" }, "gridPos": { "h": 1, "w": 24, "x": 0, "y": 41 }, "id": 42, "panels": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Request rate accepted by vmselect nodes", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [] }, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 98 }, "id": 92, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "desc" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "sum(rate(vm_http_requests_total{job=~\"$job_select\", instance=~\"$instance\", path!~\"/favicon.ico|/metrics\"}[$__rate_interval])) by (path) > 0", "format": "time_series", "intervalFactor": 1, "legendFormat": "__auto", "range": true, "refId": "A" } ], "title": "Requests rate ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "description": "Shows the max number of concurrent selects across instances.\n* `max` - equal to number of CPU * 2 by default. May be configured with `search.maxConcurrentRequests` flag\n* `current` - current number of goroutines busy with processing requests\n\nWhen `current` hits `max` constantly, it means one or more vmselect nodes are overloaded and require more CPU or better load balancing. If CPU panel shows there are free resources - try increasing `search.maxConcurrentRequests`.", "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "off" } }, "decimals": 0, "links": [], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 80 } ] }, "unit": "short" }, "overrides": [ { "matcher": { "id": "byName", "options": "max" }, "properties": [ { "id": "color", "value": { "fixedColor": "#C4162A", "mode": "fixed" } }, { "id": "custom.fillOpacity", "value": 0 } ] } ] }, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 98 }, "id": 95, "links": [], "options": { "legend": { "calcs": [ "mean", "lastNotNull", "max" ], "displayMode": "table", "placement": "bottom", "showLegend": true, "sortBy": "Last *", "sortDesc": true }, "tooltip": { "mode": "multi", "sort": "desc" } }, "pluginVersion": "9.1.0", "targets": [ { "datasource": { "type": "prometheus", "uid": "$ds" }, "editorMode": "code", "expr": "max(max_over_time(vm_concurrent_select_current{job=~\"$job_select\", instance=~\"$instance\"}[$__rate_interval])) ", "format": "time_series", "interval": "", "intervalFactor": 1, "legendFormat": "current", "range": true, "refId": "A" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "expr": "min(vm_concurrent_select_capacity{job=~\"$job_select\", instance=~\"$instance\"})", "format": "time_series", "intervalFactor": 1, "legendFormat": "max", "refId": "B" } ], "title": "Concurrent selects ($instance)", "type": "timeseries" }, { "datasource": { "type": "prometheus", "uid": "$ds" }, "fieldConfig": { "defaults": { "color": { "mode": "palette-classic" }, "custom": { "axisCenteredZero": false, "axisColorMode": "text", "axisLabel": "", "axisPlacement": "auto", "barAlignment": 0, "drawStyle": "line", "fillOpacity": 0, "gradientMode": "none", "hideFrom": { "legend": false, "tooltip": false, "viz": false }, "lineInterpolation": "linear", "lineWidth": 1, "pointSize": 5, "scaleDistribution": { "type": "linear" }, "showPoints": "never", "spanNulls": false, "stacking": { "group": "A", "mode": "none" }, "thresholdsStyle": { "mode": "line" } }, "links": [ { "targetBlank": true, "title": "Drilldown", "url": "/d/oS7Bi_0Wz?viewPanel=192&var-job=$job_select&var-ds=$ds&var-instance=$instance&${__url_time_range}" } ], "mappings": [], "min": 0, "thresholds": { "mode": "absolute", "steps": [ { "color": "green" }, { "color": "red", "value": 0.9 } ] }, "unit": "percentunit" }, "overrides": [] }, "gridPos": { "h": 8, 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