Fixing error 503 Service Unavailable
Written by
Updated at December 17, 2025
Issue description
Database reads or writes end with this error:
message: "Service Unavailable",
requestId: "SOME_UUID",
status: 503
Solution
This error may occur if you exceed the quota. It happens when you perform a lot of concurrent operations with a database.
To resolve the error, we recommend requesting an increase for the Number of requests per second quota on this page. You can also view the current values for all your quotas there.