The Invalid PostgreSQL Indexes alert notifies you when its configured condition is met on PostgreSQL instances so you can investigate and respond.
Mini DBA describes this alert as: PostgreSQL indexes marked invalid or not ready. These can be left behind by failed concurrent index builds and may not be usable by the planner. Mini DBA evaluates this alert once a minute so changes are detected quickly.
This alert gives Mini DBA a focused signal for a condition that can affect PostgreSQL reliability, performance, or operational visibility. It helps the team move from a general problem report to a specific metric, threshold, and investigation path.
Enable it on any monitored PostgreSQL instance where this condition would require an administrator to investigate or communicate with the application team. Tune noisy development systems after you have a short baseline.
Threshold meaning: Indexes. Major threshold: 0 indexes. Comparison direction: over. For an over-threshold alert, decreasing a threshold makes that severity fire sooner; increasing it tolerates more load or pressure. Set the minor threshold as an early-warning level and the major threshold at the highest acceptable value for the service.
Open the related Mini DBA page for the instance, compare the current value with the recent baseline, identify whether the change is caused by workload, configuration, host capacity, or maintenance, then record the corrective action in the incident notes.
If the alert creates repeated noise, review whether it is enabled on the correct instances, whether maintenance windows are configured, and whether the minor and major routes match the real business impact. Keep enough history to prove the new setting before changing it broadly.