HDFS-4819. Update Snapshot doc to clarify that nested snapshots are not allowed.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492062 13f79535-47bb-0310-9956-ffa450edef68
YARN-427. Coverage fix for org.apache.hadoop.yarn.server.api.* (Aleksey Gorshkov via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492282 13f79535-47bb-0310-9956-ffa450edef68
Parallel test changes caused invalid test path for several HDFS tests on Windows. Contributed by Andrey Klochkov.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492297 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5304. mapreduce.Job killTask/failTask/getTaskCompletionEvents methods have incompatible signature changes. (kkambatl via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492360 13f79535-47bb-0310-9956-ffa450edef68
TestTaskLog fails on Windows because of path separators missmatch. Contributed by Ivan Mitic.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492364 13f79535-47bb-0310-9956-ffa450edef68
YARN-600. Hook up cgroups CPU settings to the number of virtual cores allocated. (sandyr via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492365 13f79535-47bb-0310-9956-ffa450edef68
TestInfoBlock fails on Windows because of line ending missmatch. Contributed by Ivan Mitic.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492383 13f79535-47bb-0310-9956-ffa450edef68
YARN-648. FS: Add documentation for pluggable policy. (kkambatl via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492388 13f79535-47bb-0310-9956-ffa450edef68
Port HDFS-4878 to branch-0.23.9.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1492449 13f79535-47bb-0310-9956-ffa450edef68