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From "Satish Bhatti (JIRA)" <j...@apache.org>
Subject [jira] Created: (ZOOKEEPER-427) ZooKeeper server unexpectedly high CPU utilisation
Date Tue, 02 Jun 2009 21:03:07 GMT
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


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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