[jira] [Created] (MAPREDUCE-5588) TaskTrackers get killed by JettyBugMonitor because of incredibly high cpu usage

["Anthony MOI (JIRA)" <ji...@apache.org>]

Anthony MOI created MAPREDUCE-5588:
--------------------------------------

             Summary: TaskTrackers get killed by JettyBugMonitor because of incredibly high cpu usage
                 Key: MAPREDUCE-5588
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5588
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: tasktracker
    Affects Versions: 1.1.2
            Reporter: Anthony MOI


We are running a little cluster with 10 servers running task trackers. All of them are getting killed randomly with the following message

{quote}
2013-10-17 11:32:31,037 FATAL org.apache.hadoop.mapred.JettyBugMonitor: ************************************************************
Jetty CPU usage: 120093277.1%. This is greater than the fatal threshold mapred.tasktracker.jetty.cpu.threshold.fatal. Aborting JVM.
************************************************************
2013-10-17 11:32:31,039 INFO org.apache.hadoop.mapred.TaskTracker: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down TaskTracker
************************************************************/
{quote}

Everytime, the message notices a cpu usage above 120M%. Everything has been running for a while now (since 1.1.2 release) without any problems, and it started just like that.

Any idea of what could cause this ?



--
This message was sent by Atlassian JIRA
(v6.1#6144)