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From "dongeforever (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ROCKETMQ-192) Move consumer group rebalance from client to server ??
Date Wed, 24 May 2017 04:18:04 GMT

     [ https://issues.apache.org/jira/browse/ROCKETMQ-192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

dongeforever updated ROCKETMQ-192:
----------------------------------
    Affects Version/s: 4.2.0-incubating

> Move consumer   group rebalance  from client  to server  ??
> -----------------------------------------------------------
>
>                 Key: ROCKETMQ-192
>                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-192
>             Project: Apache RocketMQ
>          Issue Type: Improvement
>          Components: rocketmq-client
>    Affects Versions: 4.2.0-incubating
>            Reporter: zhaoziyan
>            Assignee: Xiaorui Wang
>             Fix For: 4.2.0-incubating
>
>         Attachments: TestConsumerQueue.java
>
>
> Consumer Started.
> Consumer Started.
> Consumer Started.
> Consumer Started.
> RunHello [i=0, num=281]{/192.168.185.172:10911@2=31, /192.168.185.172:10911@0=125, /192.168.185.172:10911@1=125}
> RunHello [i=1, num=250]{/192.168.185.172:10911@2=125, /192.168.185.172:10911@3=125}
> RunHello [i=2, num=250]{/192.168.186.131:10911@1=125, /192.168.186.131:10911@0=125}
> RunHello [i=3, num=250]{/192.168.186.131:10911@3=125, /192.168.186.131:10911@2=125}
> SIZE=1000
> 重复31
> Here is my test,I send 1000 msg to the topic. 
> The Test show the client may consume the same queue in some case. because of the current
Group rebalance is doing by the consumer side,in some case , the consumer may have diffent
view of All Consumer ids.
> for Example: the consumer id 1 see have 3 consumers,but the consumer id 2 only see 2
consumers, so the same queue may hold by two consumer.
> Kakfa 0.8.2 to 0.9 have redesign the client, move the Group rebalance to server side,
have we need also move the Rebalance to server side ??



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