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From "zhaoziyan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ROCKETMQ-192) Move consumer group rebalance from client to server ??
Date Thu, 04 May 2017 07:15:04 GMT

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

zhaoziyan updated ROCKETMQ-192:
-------------------------------
    Summary: Move consumer   group rebalance  from client  to server  ??  (was: Move the client
group rebalance to server )

> 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
>            Reporter: zhaoziyan
>            Assignee: Xiaorui Wang
>         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,the Test show the client may consume the queue in some case. because
of the current Group rebalance is doing by the consumer side,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 size ??



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