Apache RocketMQ 4.3.0 发布了，RocketMQ
是一款开源的分布式消息系统，基于高可用分布式集群技术，提供低延时的、高可靠的消息发布与订阅服务。同时，广泛应用于多个领域，包括异步通信解耦、企业解决方案、金融支付、电信、电子商务、快递物流、广告营销、社交、即时通信、移动应用、手游、视频、物联网、车联网等。
更新如下： New FeatureImprovement[ISSUE-184] - Optimize consuming performance when the master crashed out and only slave brokers are available [ISSUE-308] - Increase socket buffer size of name-server to better fit network bandwidth [ISSUE-311] - Add a fast failure mechanism for pulling message requests [ISSUE-315] - Enhance tls mode config [ISSUE-316] - Use dedicated thread pool for heartbeat handler [ISSUE-324] - Make async callback executor of the producer clients pluggable [ISSUE-325] - Enhance broker registration performance, and reduce memory footprint [ISSUE-353] - Add send and consume message commands to mqadmin tool belt [ISSUE-367] - Refactor the logging component to support log4j, log4j2, and logback libraries
Bug[ISSUE-66] - Fix the issue that message body compressed multi times when resending a message. [ISSUE-260] - Fix the concurrency issue in StoreStatsService, to yield more accurate statistics. [ISSUE-276] - Fix the issue that the missing the state validation of pull message service before scheduling new pull request [ISSUE-290] - Fix the memory leak issue in WaitNotifyObject#waitingThreadTable [ISSUE-314] - Fix the issue that message queue size not synchonized when message processing timeout [ISSUE-321] - Fix the concurrency issue in RMQAsyncSendProducer unit test [ISSUE-323] - Fix the issue that semaphore not released after async invocation callback finished [ISSUE-332] - Fix the concurrency issue in MappedFileQueue#findMappedFileByOffset [ISSUE-336] - Fix the wrong format of System.out.printf used in mqadmin [ISSUE-355] - Fix the timeout semantic of async send method
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