Fivetran: PostgreSQL Connections Using RDS Proxy Are Failing with the Error: The source database does not support a provided lock_timeout parameter

Update timeline

1. identified Mar 26, 2026, 06:20 AM UTC

   The issue has been identified and we are working to resolve it.

2. identified Mar 26, 2026, 06:24 AM UTC

   We have identified the root cause of the current errors as a recent code change. Our engineering team is currently developing a fix to restore full service.

3. monitoring Mar 26, 2026, 08:10 AM UTC

   We have released a fix to resolve the identified issues. Affected services are beginning to recover, and we are closely monitoring the system to ensure continued stability.

4. resolved Mar 26, 2026, 08:10 AM UTC

   This incident has been resolved. We have observed that error rates have returned to normal levels, and the service is operating as expected. Incident Summary Description: We identified an issue with the PostgreSQL Connections Using RDS Proxy Failing with the Error: The source database does not support a provided lock_timeout parameter Timeline: The issue began on 26/03/2026 at 05:40 UTC and was resolved on 26/03/2026 at 07:45 UTC. Cause: The issue was caused by a recent code change introducing a bug from Fivetran. Resolution: The bug was fixed and the connection services were restored.