Monitoring CockroachDB Cluster with OpenObserve

CockroachDB can be monitored through its built-in Prometheus-compatible `/_status/vars` endpoint without requiring a separate exporter, with Prometheus scraping node metrics and remotely writing them to OpenObserve for querying and visualization. The walkthrough uses Docker Compose to create a local three-node CockroachDB cluster alongside Prometheus and OpenObserve, configures Prometheus to collect metrics every 15 seconds, initializes the cluster, and optionally generates SQL activity using CockroachDB’s `movr` workload. It explains how to verify healthy scrape targets and query SQL throughput in OpenObserve before importing a ready-made dashboard covering cluster performance, replication and liveness, and node storage and resource usage. A similar approach supports standalone CockroachDB instances by changing the Prometheus target and using a dedicated dashboard. The guide also identifies common causes of missing metrics or empty dashboard panels, recommends alerting on signals such as unavailable ranges and non-live nodes, warns that insecure mode is suitable only for local testing, and notes that OpenObserve Cloud can replace the locally hosted OpenObserve service.

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