v3.3.0

Summary

This release introduces multiple bug fixes, new features, and code enhancements to improve the stability and functionality of Apache Dubbo-Go. Key improvements include resolving various service discovery and registry-related issues, addressing memory leaks, and enhancing the error handling and stability of the underlying communication library. Additionally, new features such as script-based routing, improved Java compatibility, Triple protocol keepalive, and support for Protobuf-based MetadataService have been implemented.

Bug Fixes

• Resolved initialization of the correct OTEL-GRPC exporter. #2666 #2679
• Resolved test case inconsistencies. #2660
• Resolved makezero bug. #2682
• Resolved nacos service discovery issues. #2691 #2694
• Corrected protoc-gen-go-triple path. #2690
• Resolved segmentation fault due to a nil backupCodec. #2698
• Resolved zookeeper mapping key issues. #2711
• Resolved issues with nacos registry '*' subscription. #2713
• Resolved nacos service discovery not retrieving all service names. #2715
• Resolved potential deadlock scenarios. #2716
• Resolved service disconnection and configuration invalidation issues. #2717
• Implemented error handling for triple handler using codeUnimplemented. #2719
• Resolved router rule parsing log errors. #2720
• Resolved memory leak issues by setting baseinvoker's URL to nil. #2726
• Resolved incorrect CallClientStream result handling. #2732
• Resolved slice initialization length issue. #2734
• Improved logging of file names, function names, and line numbers. #2744
• Resolved automatic camel case conversion in HTTP proxy requests. #2746
• Resolved issues reported by golangci-lint. #2754
• Resolved incorrect metric type for dubbo_registry_directory. #2766
• Resolved panic in findMappedServices. #2768
• Ensured thread-safe ListenerSet usage in CacheListener. #2769
• Improved subscription behavior to wait for register completion or timeout. #2775
• Resolved rc.id being always nil. #2778
• Resolved issue where the same address could not distinguish different registry centers. #2784
• Removed unnecessary setdeadline usage. #2785
• Resolved various problematic error returns. #2791
• Resolved additional memory leak issues. #2792
• Resolved some inaccurate comments. #2793
• Fixed data race in ReadMessage(). getty#123
• Fixed memory leak issue caused by slice interception. #hessian2/374
• Resolved URL parsing panic and improve error handling in dubbogo-cli for ZooKeeper. 2795

New Features

• Added script-based routing functionality. #2669
• Introduced support for conditional routing with multiple destinations. #2685
• Implemented new conditional rules. #2686
• Enhanced Java interoperability. #2687
• Added Protobuf-based MetadataService support. #2723
• Introduced keepalive configuration for triple protocol. #2757
• Enhanced nacos registry with multi-category subscription support. #2783
• Added triple protocol keepalive config. #triple87
• Added triple protocol connection pool. #triple91

Code Enhancements

• Added unit tests for metadata. #2665
• Improved code comments. #2668
• Renamed method WithClientCheck to WithClientNoCheck. #2680
• Optimized Nacos endpoint handling. #2692
• Updated UseAsMetaReport and UseAsConfigCenter to use string values to prevent overrides. #2693
• Updated condition rule sorting logic. #2688
• Differentiated business errors from RPC wire errors. #2712
• Standardized timeout unit to milliseconds in the Dubbo protocol. #2737
• Move internal into dubbo-go-samples repo. 2794
• Limited reconnect attempts and duration. getty#117

Contributors

Special thanks to all contributors for their efforts in improving Apache Dubbo-Go:
@1kasa
@AlbumenJ
@AlexStocks
@alingse
@Allen442
@baerwang
@chickenlj
@cuishuang
@FinalT
@FoghostCn
@gexincoding
@knowmost
@linfeip
@marsevilspirit
@Nexusrex18
@No-SilverBullet
@SHA-4096
@ShawnJeffersonWang
@snowleopard331
@solisamicus
@wcy666103
@YarBor
@yumosx