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https://issues.apache.org/jira/browse/KAFKA-6485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Manikumar resolved KAFKA-6485.
------------------------------
    Resolution: Auto Closed

The Scala consumers are deprecated. The old clients and related tools are 
removed in  KAFKA-2983

> 'ConsumerGroupCommand' performance optimization for old consumer describe 
> group
> -------------------------------------------------------------------------------
>
>                 Key: KAFKA-6485
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6485
>             Project: Kafka
>          Issue Type: Improvement
>          Components: admin
>    Affects Versions: 1.0.0
>            Reporter: HongLiang
>            Priority: Major
>         Attachments: 1ada9efa5-850a-4495-83b6-9a28f8885512.png, 
> 75a51a9f-d2c3-47fa-81d3-519343aa4d84.png, ConsumerGroupCommand.diff
>
>
> ConsumerGroupCommand describegroup performance optimization.
> performance improvement 3 times compare trunk(1.0+). and performance 
> improvement 10 times compare 0.10.2.1
> `./kafka-consumer-groups.sh --zookeeper 127.0.0.1 --group 
> cp-mirror-consumer-group --describe
> `



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