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https://issues.apache.org/jira/browse/ROCKETMQ-33?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15865133#comment-15865133
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ASF GitHub Bot commented on ROCKETMQ-33:
----------------------------------------

Github user qinliujie commented on the issue:

    https://github.com/apache/incubator-rocketmq/pull/31
  
    old version use the Object wait() method,but it had changed to countdown 
latch in new version,please notice that @Jaskey 


> CPU Occupy 100%
> ---------------
>
>                 Key: ROCKETMQ-33
>                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-33
>             Project: Apache RocketMQ
>          Issue Type: Bug
>          Components: rocketmq-broker
>    Affects Versions: 4.0.0-incubating
>            Reporter: qinliujie
>            Assignee: yukon
>            Priority: Critical
>             Fix For: 4.0.0-incubating
>
>         Attachments: RocketMQ_性能Bug.pdf
>
>
> when start RocketMQ,CPU get very high



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