Merging from trunk to branch-2 to fix YARN-742.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489601 13f79535-47bb-0310-9956-ffa450edef68
YARN-756. Remnants from moving Preemption* records to yarn.api where they really belong. Contributed by Jian He.
svn merge --ignore-ancestry -c 1489614 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489616 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1489634 Merging from trunk to branch-2 to fix HDFS-4840.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489642 13f79535-47bb-0310-9956-ffa450edef68
YARN-753. Added individual factory methods for all api protocol records and converted the records to be abstract classes. Contributed by Jian He.
svn merge --ignore-ancestry -c 1489644 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489647 13f79535-47bb-0310-9956-ffa450edef68
YARN-724. Moved ProtoBase from api.records to api.records.impl.pb. Contributed by Jian He.
MAPREDUCE-5303. Changed MR app after moving ProtoBase to package impl.pb via YARN-724. Contributed by Jian He.
svn merge --ignore-ancestry -c 1489658 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489659 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4815. TestRBWBlockInvalidation: Double call countReplicas() to fetch corruptReplicas and liveReplicas is not needed. Contributed by Tian Hong Wang.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489670 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1489708 from trunk for HDFS-4876. Fix the javadoc of FileWithSnapshot and move FileDiffList to FileWithSnapshot.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489709 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c -1489709 for reverting HDFS-4876.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489875 13f79535-47bb-0310-9956-ffa450edef68
Updating release date for 0.23.8

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489902 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9616. Fix branch-2 javadoc warnings. (Junping Du via llu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489951 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4850. Merging change r1490080 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490084 13f79535-47bb-0310-9956-ffa450edef68
Merge -c 1485842 from trunk to branch-2 to fix HADOOP-9593 stack trace printed at ERROR for all yarn clients without hadoop.home set. Contributed by Steve Lougran.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490102 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8957. Merge r1420965 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490115 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4876. Fix the javadoc of FileWithSnapshot and move FileDiffList to FileWithSnapshot.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490117 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9131. Merge r1420366 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490118 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9526. Merge 1490120 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490121 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8982. Merge 1490124 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490125 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8958. Merge r1415784 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490147 13f79535-47bb-0310-9956-ffa450edef68
YARN-764. blank Used Resources on Capacity Scheduler page (Nemon Lou via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490388 13f79535-47bb-0310-9956-ffa450edef68
Merge r1490392 from trunk to branch-2 for YARN-750. Allow for black-listing resources in YARN API and Impl in CS (acmurthy via bikas)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1490396 13f79535-47bb-0310-9956-ffa450edef68