PostgreSQL Missing Vacuum History Health Check


Use the Missing Vacuum History health check in Mini DBA to review PostgreSQL configuration, metadata, and monitoring signals before they become active alerts.

Screenshot pending: Mini DBA PostgreSQL Missing Vacuum History health check screenshot placeholder

Health Check Summary

  • Platform: PostgreSQL
  • Health check category: Performance

What This Health Check Means

This health check looks for PostgreSQL maintenance signals that keep tables healthy, plans accurate, and transaction ID wraparound risk under control.

Why It Matters

PostgreSQL maintenance issues can degrade plans and availability gradually, then fail suddenly. This check keeps routine maintenance visible.

What To Do If It Fails

Review the affected objects and workload before changing indexes. Create or rebuild only where the workload justifies it, remove unused indexes carefully, and update statistics or maintenance routines so the condition does not return.

Review Workflow

  1. Open the health check result and identify the object, setting, or metric named by the failed check.
  2. Decide whether the condition is intentional, inherited from a legacy system, or caused by recent change.
  3. Validate the fix in a lower environment or during a safe maintenance window when the change can affect plans, storage, or access.
  4. Rerun or refresh the health check after remediation so the Mini DBA health view reflects the new state.

Evidence To Collect

Keep a short note explaining why the check failed, what was changed, who owns the follow-up, and whether an exception was approved.

How To Prioritize It

Prioritize it according to workload criticality and trend. A one-off warning may be scheduled maintenance, but repeated failures usually deserve an owner and target date.

Prevention And Ownership

Prevent repeat failures by assigning an owner, documenting the expected configuration, and reviewing the check after upgrades, migrations, or major application releases.

Runbook Use

Add this page to the operational runbook for PostgreSQL environments where the check repeatedly fails. Record local thresholds, approved exceptions, escalation contacts, and the expected review interval so the next administrator can act quickly without rediscovering the same context.

Related Pages