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Even in single-database setups, temp tables can quietly lead to major problems. In this post, we break down how long-lived temp tables contribute to XID wraparound risk, why PostgreSQL shuts down to protect against it, and what proactive steps you can take to avoid unexpected downtime.
Part 4 of our PostgreSQL Autovacuum Failure Series explores how session-level temp tables in RDS can silently stall autovacuum—and how we resolved it. Learn why monitoring and visibility are critical in managed cloud environments.
Series Summary: This is Part 3 of a multi-part series on PostgreSQL autovacuum failures.
In Part 2, we reproduced the autovacuum failure issue — now let’s understand why it happens. This post dives into PostgreSQL internals, explaining how autovacuum allocates its resources and why certain databases get “stuck” in maintenance limbo.
This behavior stems from how the autovacuum daemon allocates its resources. Autovacuum identifies the …
Series Summary: This is Part 2 of a multi-part series on PostgreSQL autovacuum failures.
In Part 1, we introduced the scenario where autovacuum mysteriously halts in a multi-database PostgreSQL cluster. Now, we’ll reproduce the issue using a lightweight test setup. This walkthrough will help you see the failure in action and understand how quickly your system can degrade.
Let’s …
This blog series examines PostgreSQL autovacuum failures, focusing on temp tables and multi-database edge cases that cause bloat, slowdowns, or XID wraparound risks in complex environments.