gRPC 4 DEADLINE_EXCEEDED vs 13 INTERNAL
Both gRPC 4 (DEADLINE_EXCEEDED) and 13 (INTERNAL) belong to the gRPC Status Codes category. 4 indicates that the deadline expired before the operation could complete. For operations that change the state of the system, this error may be returned even if the operation has completed successfully. Meanwhile, 13 means that an internal error occurred. This means that some invariant expected by the underlying system has been broken.
Description
The deadline expired before the operation could complete. For operations that change the state of the system, this error may be returned even if the operation has completed successfully.
When You See It
The RPC took longer than the configured deadline allows. Common in slow network conditions, overloaded servers, or when the deadline is set too aggressively.
How to Fix
Increase the client deadline, optimize the server-side processing, or add server-side caching. If the operation might have succeeded, check idempotency before retrying.
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 4: The deadline expired before the operation could complete. For operations that change the state of the system, this error may be returned even if the operation has completed successfully.
gRPC 13: An internal error occurred. This means that some invariant expected by the underlying system has been broken.
You encounter 4 when the RPC took longer than the configured deadline allows. Common in slow network conditions, overloaded servers, or when the deadline is set too aggressively.
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 4 (DEADLINE_EXCEEDED): Increase the client deadline, optimize the server-side processing, or add server-side caching. If the operation might have succeeded, check idempotency before retrying. 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.