[jira] Assigned: (ZOOKEEPER-427) ZooKeeper server unexpectedly high CPU utilisation

["Patrick Hunt (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Hunt reassigned ZOOKEEPER-427:
--------------------------------------

    Assignee: Benjamin Reed

> 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
>            Assignee: Benjamin Reed
>         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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