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Merge remote-tracking branch 'origin/main' into add-table-bloat
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‎config/grafana/dashboards/Dashboard_10_Single_index_analysis.json‎

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{
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"annotations": {
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"list": [
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{
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"builtIn": 1,
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"datasource": {
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"type": "grafana",
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"uid": "-- Grafana --"
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},
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"enable": true,
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"hide": true,
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"iconColor": "rgba(0, 211, 255, 1)",
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"name": "Annotations & Alerts",
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"type": "dashboard"
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}
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]
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},
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"editable": true,
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"fiscalYearStartMonth": 0,
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"graphTooltip": 0,
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"id": 10,
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"links": [],
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"panels": [
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{
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"datasource": {
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"type": "prometheus",
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"uid": "P7A0D6631BB10B34F"
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},
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"fieldConfig": {
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"defaults": {
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"color": {
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"mode": "palette-classic"
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},
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"custom": {
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"axisBorderShow": false,
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"axisCenteredZero": false,
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"axisColorMode": "text",
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"axisLabel": "",
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"axisPlacement": "auto",
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"barAlignment": 0,
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"barWidthFactor": 0.6,
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"drawStyle": "line",
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"fillOpacity": 0,
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"gradientMode": "none",
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"hideFrom": {
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"legend": false,
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"tooltip": false,
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"viz": false
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},
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"insertNulls": false,
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"lineInterpolation": "linear",
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"lineWidth": 1,
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"pointSize": 1,
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"scaleDistribution": {
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"type": "linear"
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},
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"showPoints": "auto",
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"spanNulls": false,
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"stacking": {
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"group": "A",
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"mode": "none"
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},
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"thresholdsStyle": {
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"mode": "off"
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}
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},
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"mappings": [],
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "green"
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},
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{
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"color": "red",
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"value": 80
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}
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]
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}
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},
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"overrides": [
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{
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"matcher": {
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"id": "byName",
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"options": "Baseline Boguk ratio"
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},
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"properties": [
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{
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"id": "custom.lineStyle",
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"value": {
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"dash": [
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10,
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10
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],
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"fill": "dash"
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}
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},
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{
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"id": "color",
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"value": {
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"fixedColor": "dark-red",
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"mode": "fixed"
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}
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}
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]
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},
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{
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"matcher": {
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"id": "byName",
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"options": "Boguk ratio"
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},
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"properties": [
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{
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"id": "color",
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"value": {
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"fixedColor": "green",
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"mode": "fixed"
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}
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}
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]
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}
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]
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},
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"gridPos": {
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"h": 18,
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"w": 24,
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"x": 0,
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"y": 0
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},
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"id": 1,
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"options": {
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"legend": {
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"calcs": [],
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"displayMode": "table",
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"placement": "bottom",
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"showLegend": true
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},
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"tooltip": {
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"hideZeros": false,
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"mode": "single",
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"sort": "none"
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}
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},
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"pluginVersion": "12.0.2",
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"targets": [
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{
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"datasource": {
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"type": "prometheus",
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"uid": "P7A0D6631BB10B34F"
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},
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"disableTextWrap": false,
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"editorMode": "code",
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"expr": "pgwatch_pg_class_total_relation_size_bytes{relname=\"$index_name\", schemaname=\"$schema_name\"} / pgwatch_pg_class_reltuples{relname=\"$index_name\", schemaname=\"$schema_name\"}",
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"fullMetaSearch": false,
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"includeNullMetadata": true,
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"interval": "",
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"legendFormat": "Current Boguk ratio",
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"range": true,
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"refId": "A",
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"useBackend": false
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},
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{
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"datasource": {
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"type": "prometheus",
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"uid": "P7A0D6631BB10B34F"
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},
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"editorMode": "code",
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"expr": "pgwatch_pg_index_pilot_best_ratio{indexrelname=\"$index_name\", schemaname=\"$schema_name\"}",
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"hide": false,
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"instant": false,
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"legendFormat": "Baseline Boguk ratio",
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"range": true,
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"refId": "B"
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}
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],
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"title": "",
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"type": "timeseries"
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}
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],
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"preload": false,
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"schemaVersion": 41,
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"tags": [],
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"templating": {
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"list": [
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{
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"current": {
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"text": "test_pilot",
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"value": "test_pilot"
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},
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"definition": "label_values(pgwatch_pg_index_pilot_estimated_tuples,schemaname)",
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"name": "schema_name",
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"options": [],
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"query": {
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"qryType": 1,
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"query": "label_values(pgwatch_pg_index_pilot_estimated_tuples,schemaname)",
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"refId": "PrometheusVariableQueryEditor-VariableQuery"
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},
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"refresh": 1,
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"regex": "",
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"type": "query"
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},
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{
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"current": {
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"text": "",
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"value": ""
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},
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"definition": "label_values(pgwatch_pg_index_pilot_estimated_tuples{schemaname=\"$schema_name\"},indexrelname)",
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"name": "index_name",
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"options": [],
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"query": {
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"qryType": 1,
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"query": "label_values(pgwatch_pg_index_pilot_estimated_tuples{schemaname=\"$schema_name\"},indexrelname)",
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"refId": "PrometheusVariableQueryEditor-VariableQuery"
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},
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"refresh": 1,
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"regex": "",
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"type": "query"
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}
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]
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},
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"time": {
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"from": "now-1h",
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"to": "now"
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},
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"timepicker": {},
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"timezone": "browser",
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"title": "10. Single index analysis",
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"uid": "aa0128c5-c5a0-4418-a99e-c941af10426e",
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"version": 6
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}

‎config/pgwatch-prometheus/metrics.yml‎

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@@ -966,6 +966,33 @@ metrics:
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- wal_bytes
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- temp_bytes_read
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- temp_bytes_written
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pg_class:
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description: >
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Direct access to pg_class system catalog data for all relations (tables, indexes, etc).
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Provides reltuples, relpages, and other pg_class columns with relname and schemaname
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as tags for easy filtering and querying.
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sqls:
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11: |
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select
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current_database() as tag_datname,
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n.nspname as tag_schemaname,
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c.relname as tag_relname,
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c.relkind as tag_relkind,
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c.reltuples,
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c.relpages,
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pg_relation_size(c.oid) as relation_size_bytes,
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pg_total_relation_size(c.oid) as total_relation_size_bytes
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from pg_class c
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join pg_namespace n on n.oid = c.relnamespace
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where n.nspname not in ('information_schema', 'pg_catalog')
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and c.relkind in ('r', 'i', 'm', 'v') -- tables, indexes, materialized views, views
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order by pg_total_relation_size(c.oid) desc
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limit 10000
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gauges:
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- reltuples
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- relpages
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- relation_size_bytes
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- total_relation_size_bytes
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pg_stat_user_indexes:
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sqls:
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- bloat_size
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- bloat_pct
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- is_na
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- reltuples
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pg_table_bloat:
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description: >
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- bloat_size
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- bloat_pct
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- is_na
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- reltuples
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statement_timeout_seconds: 300
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pg_invalid_indexes:
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description: >
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join pg_namespace N on (N.oid = C.relnamespace)
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gauges:
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- '*'
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pg_index_pilot:
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sqls:
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11: |
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select
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(extract(epoch from now()) * 1e9)::int8 as epoch_ns,
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current_database() as tag_datname,
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database_name as tag_database_name,
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datname as tag_datname,
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schemaname as tag_schemaname,
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relname as tag_relname,
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indexrelname as tag_indexrelname,
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indexsize as index_size_bytes,
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indisvalid::int as is_valid,
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estimated_tuples,
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best_ratio
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from index_pilot.index_current_state
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order by indexsize desc
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limit 2000;
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gauges:
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- index_size_bytes
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- is_valid
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- estimated_tuples
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- best_ratio
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presets:
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full:
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pg_stat_wal_receiver: 30
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pg_archiver: 30
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pg_stat_user_tables: 30
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pg_class: 30
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pg_stat_user_indexes: 30
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pg_stat_statements: 30
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pg_stat_replication: 30
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unused_indexes: 7200
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rarely_used_indexes: 10800
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archive_lag: 15
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pg_vacuum_progress: 30
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pg_vacuum_progress: 30
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pg_index_pilot:
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metrics:
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pg_index_pilot: 30

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