consultoria-as
5a913dcac1
- nexus-postgresql.json: connections, transactions, cache hit, WAL, slow queries, table bloat - nexus-redis.json: memory, commands/sec, clients, cache hit, keyspace hits/misses, evicted keys - nexus-system.json: CPU, memory, disk, network, load average - nexus-gunicorn.json: request rate, response time, workers, 5xx errors, memory per worker - dashboards.yml: auto-provisioning config
186 lines
5.1 KiB
JSON
186 lines
5.1 KiB
JSON
{
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"uid": "nexus-postgresql",
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"title": "Nexus — PostgreSQL",
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"tags": ["postgres", "database"],
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"timezone": "browser",
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"schemaVersion": 36,
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"refresh": "30s",
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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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"templating": {
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"list": [
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{
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"name": "datasource",
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"type": "datasource",
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"query": "prometheus",
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"current": {
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"selected": false,
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"text": "Prometheus",
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"value": "Prometheus"
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}
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}
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]
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},
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"panels": [
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{
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"id": 1,
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"title": "Active Connections",
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"type": "timeseries",
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"gridPos": {"h": 8, "w": 12, "x": 0, "y": 0},
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"targets": [
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "pg_stat_activity_count",
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"legendFormat": "Connections",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"custom": {"drawStyle": "line", "lineWidth": 2, "fillOpacity": 10},
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"unit": "short",
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"min": 0
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},
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"overrides": []
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}
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},
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{
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"id": 2,
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"title": "Transactions / sec",
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"type": "timeseries",
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"gridPos": {"h": 8, "w": 12, "x": 12, "y": 0},
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"targets": [
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "rate(pg_stat_database_xact_commit[5m])",
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"legendFormat": "Commits",
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"refId": "A"
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},
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "rate(pg_stat_database_xact_rollback[5m])",
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"legendFormat": "Rollbacks",
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"refId": "B"
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}
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],
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"fieldConfig": {
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"defaults": {
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"custom": {"drawStyle": "line", "lineWidth": 2, "fillOpacity": 10},
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"unit": "tps",
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"min": 0
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},
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"overrides": []
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}
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},
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{
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"id": 3,
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"title": "Cache Hit Ratio",
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"type": "timeseries",
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"gridPos": {"h": 8, "w": 12, "x": 0, "y": 8},
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"targets": [
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "pg_stat_database_blks_hit / (pg_stat_database_blks_hit + pg_stat_database_blks_read)",
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"legendFormat": "Hit Ratio",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"custom": {"drawStyle": "line", "lineWidth": 2, "fillOpacity": 10},
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"unit": "percentunit",
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"min": 0,
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"max": 1
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},
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"overrides": []
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}
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},
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{
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"id": 4,
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"title": "WAL Generation",
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"type": "timeseries",
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"gridPos": {"h": 8, "w": 12, "x": 12, "y": 8},
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"targets": [
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "rate(pg_stat_bgwriter_buffers_backend_fsync[5m])",
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"legendFormat": "Backend fsync",
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"refId": "A"
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},
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "rate(pg_stat_bgwriter_buffers_backend[5m])",
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"legendFormat": "Backend buffers",
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"refId": "B"
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}
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],
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"fieldConfig": {
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"defaults": {
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"custom": {"drawStyle": "line", "lineWidth": 2, "fillOpacity": 10},
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"unit": "ops",
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"min": 0
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},
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"overrides": []
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}
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},
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{
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"id": 5,
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"title": "Slow Queries",
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"type": "timeseries",
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"gridPos": {"h": 8, "w": 12, "x": 0, "y": 16},
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"targets": [
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "pg_stat_activity_count{state=\"active\"}",
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"legendFormat": "Active queries",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"custom": {"drawStyle": "line", "lineWidth": 2, "fillOpacity": 10},
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"unit": "short",
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"min": 0
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},
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"overrides": []
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}
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},
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{
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"id": 6,
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"title": "Table Bloat",
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"type": "timeseries",
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"gridPos": {"h": 8, "w": 12, "x": 12, "y": 16},
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"targets": [
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "pg_stat_user_tables_n_live_tup",
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"legendFormat": "Live tuples",
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"refId": "A"
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},
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{
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"datasource": {"type": "prometheus", "uid": "${datasource}"},
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"expr": "pg_stat_user_tables_n_dead_tup",
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"legendFormat": "Dead tuples",
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"refId": "B"
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}
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],
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"fieldConfig": {
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"defaults": {
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"custom": {"drawStyle": "line", "lineWidth": 2, "fillOpacity": 10},
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"unit": "short",
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"min": 0
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},
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"overrides": []
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}
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}
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]
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}
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