gRPC
14 UNAVAILABLE
The service is currently unavailable. This is most likely a transient condition, which can be corrected by retrying with a backoff.
When You See This Code
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.
How to Fix
Retry with exponential backoff. If persistent, check the server health, load balancer configuration, and network connectivity between client and server.
Specification
View RFC / Specification →Cross-Protocol Equivalents
Comparisons
Guides
Choosing the Right HTTP Status Codes for REST APIs
API Design
gRPC Status Codes: A Practical Guide
API Design
Debugging Timeout Errors: 408 and 504
Debugging & Troubleshooting
How to Implement and Handle Rate Limiting (429)
API Design
API Versioning Strategies: URL, Header, and Query Param
API Design
Designing Consistent API Error Responses
API Design
API Keys vs OAuth vs JWT: Choosing the Right Auth Method
Security & Authentication