Increase of scheduling delay and 500 error rate of our API

Incident Report for Checkly

Resolved

This incident has been resolved.
Posted Jun 16, 2025 - 18:58 UTC

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Jun 16, 2025 - 15:45 UTC

Identified

A database migration operation resulted in table-level locks, causing downstream API performance degradation, including increased scheduling latency and higher error rates.
Posted Jun 16, 2025 - 15:35 UTC
This incident affected: API and Check Scheduler.
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