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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2529) Recognize Jetty bug 1342 and handle it
Date Sat, 04 Jun 2011 06:15:47 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13044205#comment-13044205
] 

Hadoop QA commented on MAPREDUCE-2529:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12481433/M2529-1.patch
  against trunk revision 1131265.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 findbugs.  The patch appears to introduce 1 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these core unit tests:
                  org.apache.hadoop.cli.TestMRCLI

    +1 contrib tests.  The patch passed contrib unit tests.

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/346//testReport/
Findbugs warnings: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/346//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/346//console

This message is automatically generated.

> Recognize Jetty bug 1342 and handle it
> --------------------------------------
>
>                 Key: MAPREDUCE-2529
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2529
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.20.204.0, 0.23.0
>            Reporter: Thomas Graves
>            Assignee: Thomas Graves
>             Fix For: 0.20.205.0, 0.23.0
>
>         Attachments: M2529-1-20s.patch, M2529-1.patch, jetty1342-20security.patch, mapred2529-trunk.patch
>
>
> We are seeing many instances of the Jetty-1342 (http://jira.codehaus.org/browse/JETTY-1342).
The bug doesn't cause Jetty to stop responding altogether, some fetches go through but a lot
of them throw exceptions and eventually fail. The only way we have found to get the TT out
of this state is to restart the TT.  This jira is to catch this particular exception (or perhaps
a configurable regex) and handle it in an automated way to either blacklist or shutdown the
TT after seeing it a configurable number of them.

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