Writer incident
Writer Agent SEV1 Outage (DB Lock Contention During Migration)
Update timeline
- resolved Mar 11, 2026, 12:43 PM UTC
On 2026-03-10, Writer Agent experienced a SEV1 full outage driven by database lock contention during deployment. An in-band schema migration waited on long-lived idle-in-transaction sessions, causing query queueing on core.threads and rapid connection pool exhaustion across pods. Service recovered after terminating blocking sessions and stabilizing rollout; follow-up actions are in progress to harden migration safety and transaction lifecycle controls.
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