HADOOP-10831. UserProvider is not thread safe. (Benoy Antony via umamahesh)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610789 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5809. BlockPoolSliceScanner and high speed hdfs appending make datanode to drop into infinite loop (cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610790 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10834. Typo in CredentialShell usage. (Benoy Antony via umamahesh)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610794 13f79535-47bb-0310-9956-ffa450edef68
Addendum patch for HADOOP-10468 TestMetricsSystemImpl.testMultiThreadedPublish fails intermediately. Contributed by Akira AJISAKA


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610829 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6456. NFS should throw error for invalid entry in dfs.nfs.exports.allowed.hosts. Contributed by Abhiraj Butala

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610840 13f79535-47bb-0310-9956-ffa450edef68
YARN-1408 Preemption caused Invalid State Event: ACQUIRED at KILLED and caused a task timeout for 30mins. (Sunil G via mayank)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610860 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-7664. Move attribution to release 2.6.0 section in CHANGES.txt.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610873 13f79535-47bb-0310-9956-ffa450edef68
YARN-2233. Implemented ResourceManager web-services to create, renew and cancel delegation tokens. Contributed by Varun Vasudev.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610876 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10673. Update rpc metrics when the call throws an exception. Contributed by Ming Ma.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610879 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10845. Add common tests for ACLs in combination with viewfs. Contributed by Stephen Chu.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1610911 13f79535-47bb-0310-9956-ffa450edef68
YARN-2248. Implement application movement between queues in CapacityScheduler