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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8495) Update Netty to avoid leaking file descriptors during shuffle
Date Fri, 08 Jun 2012 20:22:23 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291962#comment-13291962
] 

Hadoop QA commented on HADOOP-8495:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12531429/HADOOP-8495.patch
  against trunk revision .

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

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

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

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any 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 passed unit tests in .

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

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1100//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1100//console

This message is automatically generated.
                
> Update Netty to avoid leaking file descriptors during shuffle
> -------------------------------------------------------------
>
>                 Key: HADOOP-8495
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8495
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.23.3
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Critical
>         Attachments: HADOOP-8495.patch
>
>
> Netty 3.2.3.Final has a known bug where writes to a closed channel do not have their
futures invoked.  See [Netty-374|https://issues.jboss.org/browse/NETTY-374].  This can lead
to file descriptor leaks during shuffle as noted in MAPREDUCE-4298.

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