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feat(monitoring): add Grafana alert rules and fix datasource binding

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- Why:
  - dashboard panels could resolve to stale datasource uid and show No data
  - monitoring required proactive alerts for ClickHouse health signals
- What:
  - pin dashboard panels to prometheus_uid and remove datasource templating variable
  - fix PromQL metrics for CPU, inserted rows, and parts panels
  - add provisioning alert rules for failed queries, memory resident, and active parts
  - pin Prometheus datasource uid and update monitoring documentation
- Check:
  - POST /api/admin/provisioning/datasources/reload
  - POST /api/admin/provisioning/dashboards/reload
  - POST /api/admin/provisioning/alerting/reload
  - GET /api/v1/provisioning/alert-rules
This commit is contained in:
ddadmin
2026-02-08 20:49:31 +03:00
parent 140b711233
commit 5270273d8a
6 changed files with 326 additions and 43 deletions
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configs/grafana/provisioning/datasources/prometheus.yml
+1
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@@ -7,6 +7,7 @@ apiVersion: 1
datasources:
- name: Prometheus
uid: prometheus_uid
type: prometheus
access: proxy
url: http://prometheus:9090