RELATIONAL_DB
The Garbage Collection Trap: How pg_stat_statements Garbage Collection Triggered Patroni Failovers
Monitoring query performance with pg_stat_statements is standard operating procedure for many production PostgreSQL deployments. It operates with minimal overhead in the background, quietly tracking execution counts, runtimes, and a host of other valuable performance statistics. However, beneath its simple exterior lies a shared-memory hash table governed by strict lock semantics. When massive, dynamic queries push […]
