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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6277) Job can post multiple history files if attempt loses connection to the RM
Date Wed, 18 Mar 2015 19:07:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14367684#comment-14367684

Hadoop QA commented on MAPREDUCE-6277:

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision 402817c.

    {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}.  There were no new javadoc 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
2.0.3) 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-app.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5309//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5309//console

This message is automatically generated.

> Job can post multiple history files if attempt loses connection to the RM
> -------------------------------------------------------------------------
>                 Key: MAPREDUCE-6277
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6277
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mr-am
>    Affects Versions: 2.7.0
>            Reporter: Chang Li
>            Assignee: Chang Li
>         Attachments: MAPREDUCE-6277.2.patch, MAPREDUCE-6277.patch, YARN-3335.1.patch,
> Related to a fixed issue MAPREDUCE-6230 which cause a Job to get into error state. In
that situation Job's second or some later attempt could succeed but those later attempts'
history file will all be lost. Because the first attempt in error state will copy its history
file to intermediate dir while mistakenly think of itself as lastattempt. Jobhistory server
will later move the history file of that error attempt from intermediate dir to done dir while
ignore the rest of that job attempt's later history files in intermediate dir.  

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