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https://issues.apache.org/jira/browse/MAPREDUCE-2702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13125833#comment-13125833
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Hudson commented on MAPREDUCE-2702:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #858 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/858/])
MAPREDUCE-3148. Ported MAPREDUCE-2702 to old mapred api for aiding task
recovery.
acmurthy :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1182008
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/dev-support/findbugs-exclude.xml
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/FileOutputCommitter.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/MRConstants.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/OutputCommitter.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/TestFileOutputCommitter.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/mapred/TestFileOutputCommitter.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/mapreduce/lib/output/TestFileOutputCommitter.java
> [MR-279] OutputCommitter changes for MR Application Master recovery
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-2702
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2702
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: applicationmaster, mrv2
> Affects Versions: 0.23.0
> Reporter: Sharad Agarwal
> Assignee: Sharad Agarwal
> Priority: Blocker
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-2702.patch, MAPREDUCE-2702.patch,
> MAPREDUCE-2702.patch, mr2702_v1.patch, mr2702_v2.patch, mr2702_v3.patch,
> mr2702_v4.patch
>
>
> In MR AM recovers from a crash, it only reruns the non completed tasks. The
> completed tasks (along with their output, if any) needs to be recovered from
> the previous life. This would require some changes in OutputCommitter.
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