Critical fixes based on code review feedback:
1. **IAM API Failover (Critical)**:
- Replace pb.WithGrpcFilerClient with pb.WithOneOfGrpcFilerClients in:
* GetS3ApiConfigurationFromFiler()
* PutS3ApiConfigurationToFiler()
* GetPolicies()
* PutPolicies()
- Now all IAM operations support automatic failover across multiple filers
2. **Validation Improvements**:
- Add validation in NewIamApiServerWithStore() to require at least one filer
- Add validation in NewS3ApiServerWithStore() to require at least one filer
- Add warning log when no filers configured for credential store
3. **Error Logging**:
- Circuit breaker now logs when config load fails instead of silently ignoring
- Helps operators understand why circuit breaker limits aren't applied
4. **Code Quality**:
- Use ToGrpcAddress() for filer address in credential store setup
- More consistent with rest of codebase and future-proof
These changes ensure IAM operations have the same high availability guarantees
as S3 operations, completing the multi-filer failover implementation.
This change adds support for multiple filer addresses in the 'weed s3' and 'weed iam' commands, enabling high availability through automatic failover.
Key changes:
- Updated S3ApiServerOption.Filer to Filers ([]pb.ServerAddress)
- Updated IamServerOption.Filer to Filers ([]pb.ServerAddress)
- Modified -filer flag to accept comma-separated addresses
- Added getFilerAddress() helper methods for backward compatibility
- Updated all filer client calls to support multiple addresses
- Uses pb.WithOneOfGrpcFilerClients for automatic failover
Usage:
weed s3 -filer=localhost:8888,localhost:8889
weed iam -filer=localhost:8888,localhost:8889
The underlying FilerClient already supported multiple filers with health
tracking and automatic failover - this change exposes that capability
through the command-line interface.
Chris Lu
Chris Lu
石昌林