[jira] [Commented] (ROCKETMQ-245) All topic msg put in the same log may is not a good desgin .

["Jaskey Lam (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ROCKETMQ-245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16101299#comment-16101299 ] 

Jaskey Lam commented on ROCKETMQ-245:
-------------------------------------

I am afraid this design is with careful consideration, which helps to improve the write performance when topic is at great numbers.

This is a great improvement when topic numbers is large comparing to Kafka.

> All topic msg put in the same log may is not a good desgin .
> ------------------------------------------------------------
>
>                 Key: ROCKETMQ-245
>                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-245
>             Project: Apache RocketMQ
>          Issue Type: Improvement
>          Components: rocketmq-store
>    Affects Versions: 4.1.0-incubating
>            Reporter: zhaoziyan
>            Assignee: yukon
>            Priority: Minor
>
> The MQ put all topic msg in the same log file . I think is not a good design .
> Reason : all topic concurrency put msg , they need compete for one file lock, topic may influence each other .
> Some one have  change topic msg to store in independent file . The QPS is high than store in the same log file (  The store log system is still include physic log and queue .)



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