When upgrading Grafana or planning alerting, decide between Unified and Legacy. This guide compares architecture, migration steps, and operational trade‑offs, then walks through a concrete migration example.
Learn how to set up Grafana 10+ alerting with a Slack notification channel, from creating the channel to defining a rule, spotting common mistakes, and verifying the result.
Architecture note on Grafana's built-in alerting: minimal single-instance design, trust boundaries for rule evaluation and notification secrets, five operational metrics to monitor, four failure modes with symptoms, and concrete triggers for migrating to Mimir or Alertmanager.
Learn how to diagnose why Grafana alert rules show 'No data' or fail to send notifications, with a step‑by‑step checklist for datasource health, query validity, timing, contact points, and silencing.
Learn how to set up a Postman Monitor that runs a collection on a schedule, alerts on failures, and gives you ongoing visibility into API health without extra infrastructure.
A complete walkthrough of Grafana unified alerting: a Prometheus CPU rule using node_exporter idle-CPU rate, Slack contact point, label-based routing, and how to test it safely.
Learn how adjusting the evaluation_interval of Grafana alert rules balances detection latency against query load, with a concrete example and practical verification steps.