Doppler change history: API unavailable due to contention over database locking

Doppler reported a major API outage caused by database lock contention on its Workplace table. Recorded start: 2021-10-01 19:34 UTC; resolution: 2021-10-01 09:00 UTC; computed duration unknown (vendor reported 11 minutes). Service recovered when locks expired; Doppler refactored the affected component to avoid locking.