[rocketmq] branch 4.9.2_dev_community created (now e70d8e4)

[huangli]

This is an automated email from the ASF dual-hosted git repository.

huangli pushed a change to branch 4.9.2_dev_community
in repository https://gitbox.apache.org/repos/asf/rocketmq.git.


      at e70d8e4  优化Topic和Group检查的性能，改变算法消除正则表达式匹配

This branch includes the following new commits:

     new 44a9172  change fixed 500ms timeout for "putMessage not in lock" log 
message.
     new 38e00c4  消除反向DNS解析
     new f5e0151  优化发送、消费的解码速度
     new f9eb920  混合 topic 的 Batch 生产，一次batch可以发送到多个topic和queue，用于外挂式延迟消息服务
     new 1042880  
优化rocketmq编解码实现零拷贝，配合前面的header编解码优化，和fastjson版本相比，在生产者（client）的火焰图中，encode的占比从7.37%下降到1.78%，decode的占比从3.84降低到1.64%
     new f05f416  
对parseChannelRemoteAddr的结果进行缓存，这个方法在生产者（client）的火焰图中占比4.84%，优化后几乎消失
     new c7fe273  优化createUniqID使其在生产者（client）火焰图中的占比从2.41%下降到0.42%
     new 2b1955c  优化消除无意义的getNamespace()调用
     new 0bc5c1e  [Issue #3476] Fix last separator of properties string is 
missing when using batch send.
     new 50c1da3  使slave状态不影响事务消息发送
     new e70d8e4  优化Topic和Group检查的性能，改变算法消除正则表达式匹配

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