HDFS-5438. Flaws in block report processing can cause data loss. Contributed by Kihwal Lee.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1542054 13f79535-47bb-0310-9956-ffa450edef68
add .classpath, .project and .settings to svn:ignore.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1542059 13f79535-47bb-0310-9956-ffa450edef68
YARN-1392. Allow sophisticated app-to-queue placement policies in the Fair Scheduler (Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1542105 13f79535-47bb-0310-9956-ffa450edef68
YARN-1392: Add new files

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1542106 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9955. RPC idle connection closing is extremely inefficient (daryn)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1542111 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-HDFS-4312-trunk-gd