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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5194) Heed interrupts during Fetcher shutdown
Date Tue, 30 Apr 2013 21:16:17 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13645992#comment-13645992
] 

Hadoop QA commented on MAPREDUCE-5194:
--------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12581143/M5194.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-core.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3562//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/3562//console

This message is automatically generated.
                
> Heed interrupts during Fetcher shutdown
> ---------------------------------------
>
>                 Key: MAPREDUCE-5194
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5194
>             Project: Hadoop Map/Reduce
>          Issue Type: Task
>          Components: task
>            Reporter: Chris Douglas
>            Priority: Minor
>         Attachments: M5194.patch
>
>
> In the current implementation, {{Fetcher}} instances usually exit gracefully when the
shuffle succeeds. When it fails, threads are interrupted, but may continue running harmlessly
until the JVM shuts down.
> However, to generate consistent checkpoints, these threads should exit cleanly to quiesce
the state of the shuffle.

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