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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.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 3 }, "hiddenSeries": false, "id": 34, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": false, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [ { "alias": "pending index entries", "yaxis": 2 } ], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "vm_pending_rows{job=\"$job\", type=\"storage\"}", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "pending datapoints", "refId": "A" }, { "expr": "vm_pending_rows{job=\"$job\", type=\"indexdb\"}", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "pending index entries", "refId": "B" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Pending datapoints", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "decimals": 3, "format": "none", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Shows how many datapoints are in the storage and what is average disk usage per datapoint.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 11 }, "hiddenSeries": false, "id": 30, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": false, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [ { "alias": "bytes-per-datapoint", "yaxis": 2 } ], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(vm_rows{job=\"$job\", type != \"indexdb\"})", "format": "time_series", "interval": "", "intervalFactor": 1, "legendFormat": "total datapoints", "refId": "A" }, { "expr": "sum(vm_data_size_bytes{job=\"$job\", type!=\"indexdb\"}) / sum(vm_rows{job=\"$job\", type != \"indexdb\"})", "format": "time_series", "interval": "", "intervalFactor": 1, "legendFormat": "bytes-per-datapoint", "refId": "B" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Datapoints", "tooltip": { "shared": true, "sort": 2, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "decimals": 2, "format": "bytes", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Data parts of LSM tree.\nHigh number of parts could be an evidence of slow merge performance - check the resource utilization.\n* `indexdb` - inverted index\n* `storage/small` - recently added parts of data ingested into storage(hot data)\n* `storage/big` - small parts gradually merged into big parts (cold data)", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 11 }, "hiddenSeries": false, "id": 36, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": true, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(vm_parts{job=\"$job\"}) by (type)", "format": "time_series", "intervalFactor": 1, "legendFormat": "{{type}}", "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "LSM parts", "tooltip": { "shared": true, "sort": 2, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Shows amount of on-disk space occupied by data points and the remaining disk space at `-storageDataPath`", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 19 }, "hiddenSeries": false, "id": 53, "legend": { "alignAsTable": true, "avg": false, "current": true, "max": false, "min": false, "rightSide": false, "show": true, "total": false, "values": true }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(vm_data_size_bytes{job=\"$job\", type!=\"indexdb\"})", "format": "time_series", "interval": "", "intervalFactor": 1, "legendFormat": "Used", "refId": "A" }, { "expr": "vm_free_disk_space_bytes{job=\"$job\"}", "format": "time_series", "interval": "", "intervalFactor": 1, "legendFormat": "Free", "refId": "B" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Disk space usage (datapoints)", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "format": "bytes", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Shows amount of on-disk space occupied by inverted index.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 19 }, "hiddenSeries": false, "id": 55, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": false, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "vm_data_size_bytes{job=\"$job\", type=\"indexdb\"}", "format": "time_series", "intervalFactor": 1, "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Disk space usage (index)", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "format": "bytes", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "The number of on-going merges in storage nodes. It is expected to have high numbers for `storage/small` metric.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 27 }, "hiddenSeries": false, "id": 62, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": true, "total": false, "values": false }, "lines": true, "linewidth": 1, "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(vm_active_merges{job=\"$job\"}) by(type)", "legendFormat": "{{type}}", "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Active merges", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "decimals": 0, "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "The number of rows merged per second by storage nodes.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 27 }, "hiddenSeries": false, "id": 64, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": true, "total": false, "values": false }, "lines": true, "linewidth": 1, "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(rate(vm_rows_merged_total{job=\"$job\"}[5m])) by(type)", "legendFormat": "{{type}}", "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Merge speed", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "decimals": 0, "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Shows how many rows were ignored on insertion due to corrupted or out of retention timestamps.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 35 }, "hiddenSeries": false, "id": 58, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": false, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(vm_rows_ignored_total{job=\"$job\"}) by (reason) > 0", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "{{reason}}", "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Rows ignored", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "decimals": null, "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Shows the rate of logging the messages by their level. Unexpected spike in rate is a good reason to check logs.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 35 }, "hiddenSeries": false, "id": 67, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": true, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(rate(vm_log_messages_total{job=\"$job\"}[5m])) by (level) ", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "{{level}}", "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Logging rate", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "decimals": null, "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } } ], "title": "Storage", "type": "row" }, { "collapsed": true, "datasource": "${DS_PROMETHEUS}", "gridPos": { "h": 1, "w": 24, "x": 0, "y": 36 }, "id": 71, "panels": [ { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Shows how many of new time-series are created every second. High churn rate tightly connected with database performance and may result in unexpected OOM's or slow queries. It is recommended to always keep an eye on this metric to avoid unexpected cardinality \"explosions\".\n\nGood references to read:\n* https://www.robustperception.io/cardinality-is-key\n* https://www.robustperception.io/using-tsdb-analyze-to-investigate-churn-and-cardinality", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 0, "y": 4 }, "hiddenSeries": false, "id": 66, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": true, "total": false, "values": false }, "lines": true, "linewidth": 1, "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(rate(vm_new_timeseries_created_total{job=\"$job\"}[5m]))", "legendFormat": "churn rate", "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Churn rate", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "Slow queries rate according to `search.logSlowQueryDuration` flag, which is `5s` by default.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 12, "x": 12, "y": 4 }, "hiddenSeries": false, "id": 60, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": false, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(rate(vm_slow_queries_total{job=\"$job\"}[5m]))", "format": "time_series", "hide": false, "intervalFactor": 1, "legendFormat": "slow queries rate", "refId": "A" } ], "thresholds": [], "timeFrom": null, "timeRegions": [], "timeShift": null, "title": "Slow queries rate", "tooltip": { "shared": true, "sort": 0, "value_type": "individual" }, "type": "graph", "xaxis": { "buckets": null, "mode": "time", "name": null, "show": true, "values": [] }, "yaxes": [ { "decimals": null, "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true }, { "format": "short", "label": null, "logBase": 1, "max": null, "min": null, "show": true } ], "yaxis": { "align": false, "alignLevel": null } }, { "aliasColors": {}, "bars": false, "dashLength": 10, "dashes": false, "datasource": "$datasource", "description": "The percentage of slow inserts comparing to total insertion rate during the last 5 minutes. \n\nThe less value is better. If percentage remains high (>50%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of active time series. \n\nIn general, VictoriaMetrics requires ~1KB or RAM per active time series, so it should be easy calculating the required amounts of RAM for the current workload according to capacity planning docs. But the resulting number may be far from the real number because the required amounts of memory depends on may other factors such as the number of labels per time series and the length of label values.", "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "fill": 1, "fillGradient": 0, "gridPos": { "h": 8, "w": 24, "x": 0, "y": 12 }, "hiddenSeries": false, "id": 68, "legend": { "avg": false, "current": false, "max": false, "min": false, "show": false, "total": false, "values": false }, "lines": true, "linewidth": 1, "links": [], "nullPointMode": "null", "options": { "dataLinks": [] }, "percentage": false, "pointradius": 2, "points": false, "renderer": "flot", "seriesOverrides": [], "spaceLength": 10, "stack": false, "steppedLine": false, "targets": [ { "expr": "sum(rate(vm_slow_row_inserts_total{job=\"$job\"}[5m])) / sum(rate(vm_rows_inserted_total{job=\"$job\"}[5m]))", "format": "time_series", "hide": false, "interval": "", "intervalFactor": 1, "legendFormat": "slow 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