From 2024-09-25 13:49 UTC to 2024-09-25 13:54 UTC, an incident occurred in the Hillsboro region, resulting in performance degradation for customers and impacting their ability to make S3 API calls against buckets in the region.
During an upgrade to the region, the Operations team encountered an issue where a misconfiguration caused a service to falsely report as ready for operation. This resulted in service readiness failures and triggered failures within the region. To address the situation, the Operations Team corrected the misconfiguration and restarted the affected service.
By 13:54 UTC, the S3 service in the US-WEST-1 region was fully restored, and normal operations resumed.