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HDFS-12596. Add TestFsck#testFsckCorruptWhenOneReplicaIsCorrupt back to branch-2.7.

HDFS-12578. TestDeadDatanode#testNonDFSUsedONDeadNodeReReg failing in branch-2.7. Contributed by Ajay Kumar.

Update CHANGES.txt for HDFS-8865

HDFS-8865. Improve quota initialization performance. Contributed by Kihwal Lee.

YARN-7084. TestSchedulingMonitor#testRMStarts fails sporadically. Contributed by Jason Lowe.

(cherry picked from commit 7f6118f918e0fbe81cb64e8b9f6959b8d66679f6)

HADOOP-14902. LoadGenerator#genFile write close timing is incorrectly calculated. Contributed by Hanisha Koneru

(cherry picked from commit 6f789fe05766a61b12ca10df3f26ee354eac84aa)

Conflicts:

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/loadGenerator/LoadGenerator.java

HADOOP-14881. LoadGenerator should use Time.monotonicNow() to measure durations. Contributed by Bharat Viswanadham

(cherry picked from commit ac05a51bbb2a3fad4e85f9334a3408571967900a)

YARN-5195. RM intermittently crashed with NPE while handling APP_ATTEMPT_REMOVED event when async-scheduling enabled in CapacityScheduler. Contributed by sandflee and Jonathan Hung

HDFS-12323. Add CHANGES.txt

HDFS-12323. NameNode terminates after full GC thinking QJM unresponsive if full GC is much longer than timeout. Contributed by Erik Krogen.

(cherry picked from commit 90894c7262df0243e795b675f3ac9f7b322ccd11)

MAPREDUCE-6957. shuffle hangs after a node manager connection timeout. Contributed by Jooseong Kim

(cherry picked from commit e63a2d4d33a0a9af164bc4473ab84a0780ba6e4e)

Update CHANGES.txt for HADOOP-14827

HADOOP-14867. Update HDFS Federation setup document, for incorrect property name for secondary name node http address. Contributed by Bharat Viswanadham.

HADOOP-14827. Allow StopWatch to accept a Timer parameter for tests. Contributed by Erik Krogen

(cherry picked from commit dd814946f68d52a9b1627ac4dd61f9ab093423ae)

MAPREDUCE-6937. Backport MAPREDUCE-6870 to branch-2 while preserving compatibility. (Peter Bacsko via Haibo Chen)

MAPREDUCE-6931. Remove TestDFSIO "Total Throughput" calculation. Contributed by Dennis Huo.

(cherry picked from commit 3e0e2033cc28d48a7909822416478aff7487bfe6)

Conflicts:

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/fs/TestDFSIO.java

YARN-6959. RM may allocate wrong AM Container for new attempt. Contributed by Yuqi Wang

HDFS-12157. Do fsyncDirectory(..) outside of FSDataset lock. Contributed by Vinayakumar B.

Set the release date for 2.7.4.

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    /hadoop-mapreduce-project/CHANGES.txt
HDFS-12131. Add some of the FSNamesystem JMX values as metrics. Contributed by Erik Krogen.

(cherry picked from commit f4c6b00a9f48ae7667db4035b641769efc3bb7cf)

HADOOP-14702. Fix formatting issue and regression caused by conversion from APT to Markdown. Contributed by Doris Gu.

(cherry picked from commit d9a07b39046c323d430b98eff6603eaf58e18372)

Conflicts:

hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md

(cherry picked from commit a01d92156d9a7bf008374c04786d37aabad3f3b6)

Conflicts:

hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md

Preparing for 2.7.5 development

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    /hadoop-common-project/hadoop-kms/pom.xml
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    /hadoop-common-project/hadoop-nfs/pom.xml
  1. … 51 more files in changeset.
HDFS-11896. Non-dfsUsed will be doubled on dead node re-registration. Contributed by Brahma Reddy Battula.

(cherry picked from commit c4a85c694fae3f814ab4e7f3c172da1df0e0e353)

HADOOP-14686. Add patchprocess/ to .gitignore. Contributed by Sean Busbey.

Revert "HADOOP-14686 update .gitignore"

This reverts commit ca523c9ce4a3310cd53cc83fe5846b02e608abb6.

HADOOP-14686 update .gitignore

Signed-off-by: Allen Wittenauer <aw@apache.org>

Addendum fix for HADOOP-10829 to update CHANGES.txt

HDFS-11742. Improve balancer usability after HDFS-8818. Contributed by Kihwal Lee Updated CHANGES.txt (cherry picked from commit e229ffee64e8abd1df4d819b81151582ed3a16e2)

HDFS-12177. NameNode exits due to setting BlockPlacementPolicy loglevel to Debug. Contributed by Jiandan Yang.

HDFS-11472. Fix inconsistent replica size after a data pipeline failure. Contributed by Erik Krogen and Wei-Chiu Chuang.

(cherry picked from commit 2a5a313539e211736fef12010918a60f9edad030)