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