PostgreSQL work_mem Configuration Pitfalls: How Low Memory Settings Can Cause Catastrophic Outages

The article discusses a critical PostgreSQL database performance issue where a production cluster with 2 TB of RAM was killed by the OOM (Out of Memory) killer despite having work_mem set to only 2 MB. The author investigates this counterintuitive scenario where a seemingly low memory setting caused catastrophic failure, exploring how PostgreSQL's work_mem p

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