HADOOP-9379. Merging change 1455316 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455318 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1455740 FIXES: MAPREDUCE-5060. Fetch failures that time out only count against the first map task. Contributed by Robert Joseph Evans


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455742 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4013. Merge r1455754 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455756 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9399. protoc maven plugin doesn't work on mvn 3.0.2. Contributed by Todd Lipcon.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455772 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4592. Default values for access time precision are out of sync between hdfs-default.xml and the code. Contributed by Aaron T. Myers.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455778 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4522. LightWeightGSet expects incrementing a volatile to be atomic. Contributed by Colin Patrick McCabe.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455781 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4484. libwebhdfs compilation broken with gcc 4.6.2. Contributed by Colin Patrick McCabe.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455783 13f79535-47bb-0310-9956-ffa450edef68
YARN-198. Added a link to RM pages from the NodeManager web app. Contributed by Jian He.
svn merge --ignore-ancestry -c 1455800 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455802 13f79535-47bb-0310-9956-ffa450edef68
Move HADOP-7101 from 0.22 section to 0.23

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1455950 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4595. Merging 1456047 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456048 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4583. Merged 1456052 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456055 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4591. HA clients can fail to fail over while Standby NN is performing long checkpoint. Contributed by Aaron T. Myers.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456109 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1456172 Merging from trunk to branch-2 to fix HDFS-3344.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456176 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1456458 FIXES: YARN-468. coverage fix for org.apache.hadoop.yarn.server.webproxy.amfilter (Aleksey Gorshkov via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456459 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1456469 FIXES: HDFS-3367. WebHDFS doesn't use the logged in user when opening connections (daryn)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456470 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c 1456536 FIXES: YARN-237. Refreshing the RM page forgets how many rows I had in my Datatables (jian he via bobby)


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456537 13f79535-47bb-0310-9956-ffa450edef68
HDFS-3277. fail over to loading a different FSImage if the first one we try to load is corrupt. Contributed by Colin Patrick McCabe and Andrew Wang.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456585 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4596. Shutting down namenode during checkpointing can lead to md5sum error. Contributed by Andrew Wang.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456633 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9407. Merge 1456704 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456705 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9406. hadoop-client leaks dependency on JDK tools jar. (tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1456730 13f79535-47bb-0310-9956-ffa450edef68