HDFS-6194. Create new tests for ByteRangeInputStream. Contributed by Akira Ajisaka.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1587660 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5836. Fix typo in RandomTextWriter (Akira AJISAKA via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1587716 13f79535-47bb-0310-9956-ffa450edef68
YARN-1892. Improved some logs in the scheduler. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1587717 13f79535-47bb-0310-9956-ffa450edef68