YARN-236. RM should point tracking URL to RM web page when app fails to start (Jason Lowe via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448406 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4502. JsonUtil.toFileStatus(..) should check if the fileId property exists.  Contributed by Brandon Li


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448502 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4846. Some JobQueueInfo methods are public in MR1 but protected in MR2. Contributed by Sandy Ryza.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448597 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5013. mapred.JobStatus compatibility: MR2 missing constructors from MR1. Contributed by Sandy Ryza.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448602 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4951. Container preemption interpreted as task failure. Contributed by Sandy Ryza.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448615 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4482. ReplicationMonitor thread can exit with NPE due to the race between delete and replication of same file. Contributed by Uma Maheswara Rao G.



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448708 13f79535-47bb-0310-9956-ffa450edef68
amendment to HADOOP-9112 fix return codes (Surenkumar Nihalani via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448745 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4222. NN is unresponsive and loses heartbeats from DNs when configured to use LDAP and LDAP has issues. Contributed by Xiaobo Peng and Suresh Srinivas.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1448801 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9267. hadoop -help, -h, --help should show usage instructions. Contributed by Andrew Wang.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1449161 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' into HDFS-4249
HDFS-4249 - feedback - add overall elapsed time and percent complete