HADOOP-9483. winutils support for readlink command. Contributed by Arpit Agarwal.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1478592 13f79535-47bb-0310-9956-ffa450edef68
YARN-625. Move the utility method unwrapAndThrowException from YarnRemoteExceptionPBImpl to RPCUtil. Contributed by Siddharth Seth.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1478594 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9483. Adding a file missed in previous commit r1478592

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1478633 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9523. Provide a generic IBM java vendor flag in PlatformName.java to support non-Sun JREs. Contributed by Tian Hong Wang.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1478634 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9511. Adding support for additional input streams (FSDataInputStream and RandomAccessFile) in SecureIOUtils so as to help YARN-578. Contributed by Omkar Vinit Joshi.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479010 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5205. Fixed MR App to load tokens correctly. Contributed by Vinod Kumar Vavilapalli.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479016 13f79535-47bb-0310-9956-ffa450edef68
YARN-645. Moved RMDelegationTokenSecretManager from yarn-server-common to yarn-server-resourcemanager where it really belongs. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479022 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9425 Add error codes to rpc-response (sanjay Radia)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479143 13f79535-47bb-0310-9956-ffa450edef68
YARN-629. Make YarnRemoteException not be rooted at IOException. Contributed by Xuan Gong.
MAPREDUCE-5204. Handling YarnRemoteException separately from IOException in MR app after YARN-629. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479680 13f79535-47bb-0310-9956-ffa450edef68
YARN-633. Changed RMAdminProtocol api to throw IOException and YarnRemoteException. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479738 13f79535-47bb-0310-9956-ffa450edef68
YARN-632. Changed ContainerManager api to throw IOException and YarnRemoteException. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479740 13f79535-47bb-0310-9956-ffa450edef68
YARN-45. Add protocol for schedulers to request containers back from
ApplicationMasters. Contributed by Carlo Curino and Chris Douglas.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479771 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9540. Expose the InMemoryS3 and S3N FilesystemStores implementations for Unit testing. Hari

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1479985 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4804. WARN when users set the block balanced preference percent below 0.5 or above 1.0. Contributed by Stephen Chu.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1480098 13f79535-47bb-0310-9956-ffa450edef68
Move the CHANGES.txt entry for HDFS-4804 from BUG to IMPROVEMENT.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1480101 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'apache/trunk' into MAPREDUCE-5156
Try to fix the findbug error