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Made fixes for whitespace errors and checstyle warnings before merge.

HDFS-11912. Snapshot functionality test along with randomized file IO operations. (George Huang via Manoj Govindassamy)

HADOOP-14583. wasb throws an exception if you try to create a file and there's no parent directory Contributed by Esfandiar Manii and Thomas Marquardt.

YARN-5816. TestDelegationTokenRenewer#testCancelWithMultipleAppSubmissions is still flakey. Contributed by Robert Kanter

HADOOP-14802. Add support for using container saskeys for all accesses. Contributed by Sivaguru Sankaridurg

HADOOP-14671. Upgrade to Apache Yetus 0.5.0.

YARN-6386. Show decommissioning nodes in new YARN UI. Contributed by Elek Marton.

YARN-7076. yarn application -list -appTypes is not working. Contributed by Jian He.

HDFS-12293. DataNode should log file name on disk error. Contributed by Ajay Kumar.

YARN-7112. TestAMRMProxy is failing with invalid request. (Jason Lowe via wangda)

Change-Id: I432f4523921666ac218fcf9936f826a0d8d635e0

YARN-7099. ResourceHandlerModule.parseConfiguredCGroupPath only works for privileged yarn users. (Contributed by Miklos Szegedi via Yufei Gu)

YARN-7051. Avoid concurrent modification exception in FifoIntraQueuePreemptionPlugin. Contributed by Eric Payne.

MAPREDUCE-6945. TestMapFileOutputFormat missing @after annotation. Contributed by Ajay Kumar

HDFS-12358. Handle IOException when transferring edit log to Journal current dir through JN sync. Contributed by Hanisha Koneru.

HDFS-12248. SNN will not upload fsimage on IOE and Interrupted exceptions. (Brahma Reddy Battula)

YARN-6999. Add log about how to solve Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster. (Linlin Zhou via gtcarrera9)

HDFS-11986. Dfsadmin should report erasure coding related information separately.

HDFS-12215. DataNode.transferBlock does not create its daemon in the xceiver thread group. (Lei Xu)

HDFS-12303. Change default EC cell size to 1MB for better performance. Contributed by Wei Zhou.

YARN-7087. NM failed to perform log aggregation due to absent container. Contributed by Jason Lowe.

YARN-7052. RM SchedulingMonitor gives no indication why the spawned thread crashed. Contributed by Eric Payne

HDFS-12299. Race Between update pipeline and DN Re-Registration

HDFS-12319. DirectoryScanner will throw IllegalStateException when Multiple BP's are present. Contributed by Brahma Reddy Battula.

HADOOP-14729. Upgrade JUnit 3 test cases to JUnit 4. Contributed by Ajay Kumar.

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YARN-6640. AM heartbeat stuck when responseId overflows MAX_INT. Contributed by Botong Huang

YARN-7049. FSAppAttempt preemption related fields have confusing names. (Contributed by Karthik Kambatla via Yufei Gu)

YARN-6876. Create an abstract log writer for extendability. Contributed by Xuan Gong.

  1. … 3 more files in changeset.
HDFS-12344. LocatedFileStatus regression: no longer accepting null FSPermission. Contributed by Ewan Higgs

YARN-7074. Fix NM state store update comment. Contributed by Botong Huang

HDFS-12318. Fix IOException condition for openInfo in DFSInputStream. Contributed by legend.