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https://issues.apache.org/jira/browse/MAPREDUCE-3851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13210966#comment-13210966
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Thomas Graves commented on MAPREDUCE-3851:
------------------------------------------

Without this change there are 10 findbugs warnings. This one introduces:
org.apache.hadoop.mapred.ShuffleExceptionTracker.doAbort() invokes 
System.exit(...), which shuts down the entire virtual machine

This is expected, I will update patch to exclude this.


    [exec] -1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     +1 tests included.  The patch appears to include 3 new or 
modified tests.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning 
messages.
     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number 
of javac compiler warnings.     [exec]     [exec]     -1 findbugs.  The patch 
appears to introduce 11 new Findbugs (version 1.3.9) warnings.     [exec]
                
> Allow more aggressive action on detection of the jetty issue
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-3851
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3851
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 1.0.0
>            Reporter: Kihwal Lee
>            Assignee: Thomas Graves
>             Fix For: 1.1.0, 1.0.1
>
>         Attachments: MAPREDUCE-3851.patch, MAPREDUCE-3851.patch
>
>
> MAPREDUCE-2529 added the useful failure detection mechanism. In this jira, I 
> propose we add a periodic check inside TT and configurable action to 
> self-destruct. Blacklisting helps but is not enough. Hung jetty still accepts 
> connection and it takes very long time for clients to fail out. Short jobs 
> are delayed for hours because of this. This feature will be a nice companion 
> to MAPREDUCE-3184.

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