gRPC 0 OK vs 4 DEADLINE_EXCEEDED
Both gRPC 0 (OK) and 4 (DEADLINE_EXCEEDED) belong to the gRPC Status Codes category. 0 indicates that the operation completed successfully. Not an error; returned on success. Meanwhile, 4 means 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.
Descripción
The operation completed successfully. Not an error; returned on success.
Cuándo lo verás
The RPC completed without any issues. This is the expected response for every successful gRPC call.
Cómo solucionarlo
No fix needed — this indicates everything worked correctly.
Descripción
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.
Cuándo lo verás
The RPC took longer than the configured deadline allows. Common in slow network conditions, overloaded servers, or when the deadline is set too aggressively.
Cómo solucionarlo
Increase the client deadline, optimize the server-side processing, or add server-side caching. If the operation might have succeeded, check idempotency before retrying.
Diferencias clave
gRPC 0: The operation completed successfully. Not an error; returned on success.
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.
You encounter 0 when the RPC completed without any issues. This is the expected response for every successful gRPC call.
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.
Cuándo usar cada uno
For 0 (OK): No fix needed — this indicates everything worked correctly. 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.