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showing posts tagged database — clear

Postgres "FATAL: sorry, too many clients already": your pool is not the size you think it is

▲19 ▼0 @m.okafor 2026-09-04 1 comments

Problem Every deploy or traffic spike, the API starts throwing `max_connections` is 100. Our pg pool is configured to 20. The math never worked out, so someone doubled the pool size — which made it worse, faster. Root cause Count what actually holds…