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https://issues.apache.org/jira/browse/MAPREDUCE-5910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14066260#comment-14066260
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Hudson commented on MAPREDUCE-5910:
-----------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk #616 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/616/])
MAPREDUCE-5910. Make MR AM resync with RM in case of work-preserving
RM-restart. Contributed by Rohith (jianhe:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1611434)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/local/LocalContainerAllocator.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMContainerAllocator.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMContainerRequestor.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/rm/TestRMContainerAllocator.java
> MRAppMaster should handle Resync from RM instead of shutting down.
> ------------------------------------------------------------------
>
> Key: MAPREDUCE-5910
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5910
> Project: Hadoop Map/Reduce
> Issue Type: Task
> Components: applicationmaster
> Reporter: Rohith
> Assignee: Rohith
> Fix For: 2.6.0
>
> Attachments: MAPREDUCE-5910.1.patch, MAPREDUCE-5910.2.patch,
> MAPREDUCE-5910.3.patch, MAPREDUCE-5910.4.patch
>
>
> The ApplicationMasterService currently sends a resync response to which the
> AM responds by shutting down. The MRAppMaster behavior is expected to change
> to calling resyncing with the RM. Resync means resetting the allocate RPC
> sequence number to 0 and the AM should send its entire outstanding request to
> the RM. Note that if the AM is making its first allocate call to the RM then
> things should proceed like normal without needing a resync. The RM will
> return all containers that have completed since the RM last synced with the
> AM. Some container completions may be reported more than once.
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