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A P1 incident caused elevated API latency (>4s p99) and an 18% error rate affecting all authenticated endpoints from 14:03–14:47 UTC. The contributing change was PR #2847 — a connection pool config update deployed at 13:55 UTC that exhausted available DB connections under load.
config/db.py was updated to set max_connections=10 (down from 50) as part of a cost-reduction effort. Under peak traffic, the pool was exhausted within minutes, causing requests to queue and time out.
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