[GitHub] [rocketmq] imp2002 added a comment to the discussion: 请问该怎么解决 CODE: 2 DESC: [REJECTREQUEST]system busy, start flow control for a while BROKER:

Wed, 26 Apr 2023 04:32:56 -0700 


GitHub user imp2002 added a comment to the discussion: 请问该怎么解决 CODE: 2  DESC: 
[REJECTREQUEST]system busy, start flow control for a while BROKER:


![image](https://user-images.githubusercontent.com/41513919/234561217-d71ef767-a460-43d5-ac59-9855c216a564.png)

Seems cause by `Page Cache busy`, a possible solution is to enable the 
`transientStorePoolEnable` and set the `transientStorePoolSize` realize 
read-write separation, relieve pressure on page cache.
```conf
transientStorePoolEnable=true
transientStorePoolSize=1
```

GitHub link: 
https://github.com/apache/rocketmq/discussions/6656#discussioncomment-5730397

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