[GitHub] [rocketmq] yzezzm commented on issue #2582: RocketMQ4.8.0 dledger cluster will switch master to slave when the message accumulation is close to 30 million

Mon, 07 Jun 2021 19:32:39 -0700 


yzezzm commented on issue #2582:
URL: https://github.com/apache/rocketmq/issues/2582#issuecomment-856390851


   > > I can't reproduce your case. IMO the config is important.
   > > 
![image](https://user-images.githubusercontent.com/3734319/113813947-6d0d8c80-97a3-11eb-937e-a8d7abf28a0d.png)
   > 
   > 
想起来了，你们内存是多大。我估计是堆积的消息足够多，将大部分内存cached之后会触发。我用的32G内存，可用20左右，所以大概是3000万消息堆积切换。
   
   这个要调，我64G机器，调到8G,之后sar -B 命令中的scanD基本消失


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