PrometheusTSDBCompactionsFailing # Meaning # Prometheus has issues compacting blocks. Impact # Metrics and alerts may be missing or inaccurate. Diagnosis # Check storage used by the pod. This can happen if there is a lot of going on in the cluster and prometheus did not manage to compact data. Mitigation # At first just wait, it may fix itself after some time. Increase Prometheus pod memory so that it caches more from disk.
