HDFS-5651. Remove dfs.namenode.caching.enabled and improve CRM locking. Contributed by Colin Patrick McCabe.

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MAPREDUCE-5689. MRAppMaster does not preempt reducers when scheduled maps cannot be fulfilled. (lohit via kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555161 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5695. Clean up TestOfflineEditsViewer and OfflineEditsViewerHelper. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555164 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5705. TestSecondaryNameNodeUpgrade#testChangeNsIDFails may fail due to ConcurrentModificationException. Contributed by Ted Yu

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HDFS-5667. Include DatanodeStorage in StorageReport. (Arpit Agarwal)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555929 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10193. hadoop-auth's PseudoAuthenticationHandler can consume getInputStream. (gchanan via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555955 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5667. Add test missed in previous checkin

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555956 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-3310. Custom grouping comparator cannot be set for Combiners (tucu)

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YARN-1559. Race between ServerRMProxy and ClientRMProxy setting RMProxy#INSTANCE. (kasha and vinodkv via kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555970 13f79535-47bb-0310-9956-ffa450edef68
YARN-1560. Fixed TestYarnClient#testAMMRTokens failure with null AMRM token. (Contributed by Ted Yu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555975 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5220. Expose group resolution time as metric (jxiang via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555976 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5589. Namenode loops caching and uncaching when data should be uncached. (awang via cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1555996 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5719. FSImage#doRollback() should close prevState before return. Contributed by Ted Yu

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1556057 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-3310. Addendum fixing javadocs warnings (tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1556063 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10201. Add listing to KeyProvider API. (Larry McCay via omalley)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1556072 13f79535-47bb-0310-9956-ffa450edef68
HDFS-2832. Update CHANGES.txt to reflect merge to branch-2

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1556088 13f79535-47bb-0310-9956-ffa450edef68
YARN-1029. Added embedded leader election in the ResourceManager. Contributed by Karthik Kambatla.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1556103 13f79535-47bb-0310-9956-ffa450edef68
YARN-1409. NonAggregatingLogHandler can throw RejectedExecutionException. Contributed by Tsuyoshi OZAWA


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1556282 13f79535-47bb-0310-9956-ffa450edef68
YARN-930. Bootstrapping ApplicationHistoryService module. Contributed by Vinod Kumar Vavilapalli.

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YARN-935. Correcting pom.xml to build applicationhistoryserver module successfully. Contributed by Zhijie Shen.

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