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Posted to issues@rocketmq.apache.org by "vongosling (JIRA)" <ji...@apache.org> on 2017/12/13 12:25:00 UTC

[jira] [Closed] (ROCKETMQ-294) Do flow control on the number and size dimensions when pull message

     [ https://issues.apache.org/jira/browse/ROCKETMQ-294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

vongosling closed ROCKETMQ-294.
-------------------------------
    Resolution: Fixed

> Do flow control on the number and size dimensions when pull message
> -------------------------------------------------------------------
>
>                 Key: ROCKETMQ-294
>                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-294
>             Project: Apache RocketMQ
>          Issue Type: Improvement
>          Components: rocketmq-client
>            Reporter: yukon
>            Assignee: yukon
>             Fix For: 4.2.0
>
>
> *Motivations*
> Current flow control strategy only support on Queue level, each message queue can cache 1000 message by default. 
> When lots of message queue are assigned to one consumer instance, the consumer will cache too many messages, may cause OOM exception.
> On the other hand, only control the message amount is not enough, should support do flow control on the number and size dimensions, on Topic and Queue level.



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