HDFS-4573. Fix TestINodeFile on Windows. Contributed by Arpit Agarwal.





git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1454616 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-8973. DiskChecker cannot reliably detect an inaccessible disk on Windows with NTFS ACLs. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1454889 13f79535-47bb-0310-9956-ffa450edef68
Address Robert's comment, and make M/R AM inquiries RM for max-retries.
Merge remote-tracking branch 'apache/trunk' into YARN-378