[GitHub] [rocketmq] panzhi33 commented on issue #2974: how the syncflush run?

[GitBox]

panzhi33 commented on issue #2974:
URL: https://github.com/apache/rocketmq/issues/2974#issuecomment-854292364


   
   
   
   > submitFlushRequest方法里面并没有看到阻塞啊
   > <img alt="image" width="1167" 
src="https://user-images.githubusercontent.com/22761447/120638941-63eb2400-c4a3-11eb-9a4f-737911db10f2.png";>
   
   这里用到了jdk8的异步调用，这个就是等待，这是最近几个版本做的更新。如果你想看到书中那样的主动唤醒，需要看之前老版本的源码，比如4.4


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