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 ?
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