gRPC 0 OK vs 13 INTERNAL
Both gRPC 0 (OK) and 13 (INTERNAL) belong to the gRPC Status Codes category. 0 indicates that the operation completed successfully. Not an error; returned on success. Meanwhile, 13 means that an internal error occurred. This means that some invariant expected by the underlying system has been broken.
Description
The operation completed successfully. Not an error; returned on success.
When You See It
The RPC completed without any issues. This is the expected response for every successful gRPC call.
How to Fix
No fix needed — this indicates everything worked correctly.
Description
An internal error occurred. This means that some invariant expected by the underlying system has been broken.
When You See It
A server-side bug, a corrupted internal state, or an unexpected failure in a dependency. This is the gRPC equivalent of HTTP 500.
How to Fix
Check the server error logs and traces for the root cause. This typically indicates a bug that needs to be fixed in the server code.
Key Differences
gRPC 0: The operation completed successfully. Not an error; returned on success.
gRPC 13: An internal error occurred. This means that some invariant expected by the underlying system has been broken.
You encounter 0 when the RPC completed without any issues. This is the expected response for every successful gRPC call.
You encounter 13 when a server-side bug, a corrupted internal state, or an unexpected failure in a dependency. This is the gRPC equivalent of HTTP 500.
When to Use Which
For 0 (OK): No fix needed — this indicates everything worked correctly. For 13 (INTERNAL): Check the server error logs and traces for the root cause. This typically indicates a bug that needs to be fixed in the server code.