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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2019/04/08 01:57:10 UTC

[GitHub] [rocketmq] icersummer commented on issue #721: Question About [NOTIFYME]putMessage in lock cost time(ms)=4052

icersummer commented on issue #721: Question About [NOTIFYME]putMessage in lock cost time(ms)=4052
URL: https://github.com/apache/rocketmq/issues/721#issuecomment-480657174
 
 
   >  @davidpdw  根据我的测试结果，我发现应该是主从同步slave使用FileChannel.position(offset)标记位置的时候，同时slave节点执行刷盘flush(false)，然后导致position调用阻塞，进而影响到了master节点主从同步阻塞引起的
   
   能不能问下 你是如何测试的? 我在调试时只能debug, 但是定位不了特别具体的耗时步骤.

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