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https://issues.apache.org/jira/browse/ZOOKEEPER-427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715731#action_12715731
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Mahadev konar commented on ZOOKEEPER-427:
-----------------------------------------

no worries satish,
 I hope we could have gotten that trace though... We had seen similar behavior 
in another jira ZOOKEEPER-287, and wanted to make sure if both are caused by 
similar problems. I have linked these two together. Do update the jira in case 
you run into this again.



> ZooKeeper server unexpectedly high CPU utilisation
> --------------------------------------------------
>
>                 Key: ZOOKEEPER-427
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-427
>             Project: Zookeeper
>          Issue Type: Bug
>    Affects Versions: 3.1.1
>         Environment: Linux: 2.6.18-92.1.18.el5 #1 SMP Wed Nov 12 09:19:49 EST 
> 2008 x86_64 x86_64 x86_64 GNU/Linux
> java version "1.6.0_03"
> Java(TM) SE Runtime Environment (build 1.6.0_03-b05)
> Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_03-b05, mixed mode)
>            Reporter: Satish Bhatti
>         Attachments: zoo.cfg, zookeeper-jstack.log, zookeeper.log
>
>
> I am running a 5 node ZooKeeper cluster and I noticed that one of them has 
> very high CPU usage:
>  PID   USER      PR  NI  VIRT  RES  SHR S   %CPU %MEM    TIME+   COMMAND 
>  6883  infact       22   0   725m  41m  4188 S   95       0.5          
> 5671:54  java
> It is not "doing anything" application-wise at this point, so I was wondering 
> why the heck it's using up so much CPU.

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