gRPC

gRPC 6 ALREADY_EXISTS vs 14 UNAVAILABLE

Both gRPC 6 (ALREADY_EXISTS) and 14 (UNAVAILABLE) belong to the gRPC Status Codes category. 6 indicates that the entity that a client attempted to create already exists. For example, a file or directory that the RPC was supposed to create already exists. Meanwhile, 14 means that the service is currently unavailable. This is most likely a transient condition, which can be corrected by retrying with a backoff.

Descrição

The entity that a client attempted to create already exists. For example, a file or directory that the RPC was supposed to create already exists.

Quando você o vê

A create operation failed because a resource with the same unique identifier or name already exists in the system.

Como corrigir

Use a different identifier, or switch to an upsert/update operation if overwriting is acceptable. Check for existing resources before creating.

Descrição

The service is currently unavailable. This is most likely a transient condition, which can be corrected by retrying with a backoff.

Quando você o vê

The server is overloaded, shutting down, or a network partition occurred. This is the most common code to retry on, as it's explicitly transient.

Como corrigir

Retry with exponential backoff. If persistent, check the server health, load balancer configuration, and network connectivity between client and server.

Diferenças principais

1.

gRPC 6: The entity that a client attempted to create already exists. For example, a file or directory that the RPC was supposed to create already exists.

2.

gRPC 14: The service is currently unavailable. This is most likely a transient condition, which can be corrected by retrying with a backoff.

3.

You encounter 6 when a create operation failed because a resource with the same unique identifier or name already exists in the system.

4.

You encounter 14 when the server is overloaded, shutting down, or a network partition occurred. This is the most common code to retry on, as it's explicitly transient.

Quando usar qual

For 6 (ALREADY_EXISTS): Use a different identifier, or switch to an upsert/update operation if overwriting is acceptable. Check for existing resources before creating. For 14 (UNAVAILABLE): Retry with exponential backoff. If persistent, check the server health, load balancer configuration, and network connectivity between client and server.

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