MAPREDUCE-4808. Refactor MapOutput and MergeManager to facilitate reuse by Shuffle implementations. (masokan via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1436936 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
Reverted commit  ceae0de489a965cad9b3bfd40167b94cecc95f9b: will create a separate feature-branch for it.
MAPREDUCE-4949. Enable multiple pi jobs to run in parallel. (sandyr via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1437029 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
MAPREDUCE-4946. Fix a performance problem for large jobs by reducing the number of map completion event type conversions. Contributed by Jason Lowe.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1437103 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9231. Parametrize staging URL for the uniformity of distributionManagement. Contributed by Konstantin Boudnik.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1437140 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9231. Add missing CHANGES.txt

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Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
YARN-277. Use AMRMClient in DistributedShell to exemplify the approach. Contributed by Bikas Saha

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Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
YARN-231. RM Restart - Add FS-based persistent store implementation for RMStateStore. Contributed by Bikas Saha

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Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
YARN-319. Submitting a job to a fair scheduler queue for which the user does not have permission causes the client to wait forever. Contributed by shenhong.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1437336 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
HDFS-4426. Secondary namenode shuts down immediately after startup. Contributed by Arpit Agarwal.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1437627 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
YARN-354. WebAppProxyServer exits immediately after startup. Contributed by Liang Xie


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1437775 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of github.com:griddynamics/yhadoop-common into trunk-gd
Add .classpath, .project, .settings and target to svn:ignore.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1437844 13f79535-47bb-0310-9956-ffa450edef68