That's a good idea. But I don't understand why add the logical cold data judgment? Physical cold data reading will have a practical impact, but logical cold data may only be physical cold data, not necessarily cold data, and its reading does not necessarily cause system stress. One point that can be thought of is to speed up cold data judgment?
SSpirits <ad...@lv5.moe> 于2023年2月14日周二 11:54写道： > > Hi drizzle.zk, > > Currently, we have a precise way to find out cold data, please see > https://github.com/apache/rocketmq/issues/5837. And I agree with you that we > should stop prefetch CommitLog if it is not the latest file. Maybe we can use > madvise system call and MADV_FREE or MADV_DONTNEED flag. > > Your response would be highly appreciated. > SSpirits > Email：ad...@lv5.moe<mailto:ad...@lv5.moe> > 在 2023年2月10日 +0800 18:00，2017赵科 <464473...@qq.com.INVALID>，写道： > Hello RocketMQ Community: > > > We have plans to add Cold read control features can control the reading speed > of cold data so as to ensure the stability of the system. > We also have written the proposal, and you can see it by the link below: > https://docs.google.com/document/d/1P8JPX5b9CwYMlaFi_UBxqwxFoIiOXWuAEjV4yWdfFUw/edit?usp=sharing > > > Please welcome to reply to this email or comment on the proposal if you have > any questions or suggestions. > > > > Thanks, > drizzle.zk > > > > > > > > 2017赵科 > 464473...@qq.com > > > >
