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https://issues.apache.org/jira/browse/MAPREDUCE-4801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13498442#comment-13498442
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Hadoop QA commented on MAPREDUCE-4801:
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{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12553716/MAPREDUCE-4801.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3035//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3035//console
This message is automatically generated.
> ShuffleHandler can generate large logs due to prematurely closed channels
> -------------------------------------------------------------------------
>
> Key: MAPREDUCE-4801
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4801
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 0.23.3, 2.0.1-alpha
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Critical
> Attachments: MAPREDUCE-4801.patch
>
>
> We ran into an instance where many nodes on a cluster ran out of disk space
> because the nodemanager logs were huge. Examining the logs showed many, many
> shuffle errors due to either ClosedChannelException or IOException from
> "Connection reset by peer" or "Broken pipe".
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