MAPREDUCE-5043. Fetch failure processing can cause AM event queue to backup and eventually OOM (Jason Lowe via bobby)


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MAPREDUCE-4794. DefaultSpeculator generates error messages on normal shutdown (Jason Lowe via jeagles)

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YARN-410. Fixed RM UI so that the new lines diagnostics for a failed app on the per-application page are translated to html line breaks. Contributed by Omkar Vinit Joshi.


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YARN-376. Fixes a bug which would prevent the NM knowing about completed containers and applications. Contributed by Jason Lowe.


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MAPREDUCE-4896. mapred queue -info spits out ugly exception when queue does not exist. (sandyr via tucu)

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HADOOP-9349. Confusing output when running hadoop version from one hadoop installation when HADOOP_HOME points to another. (sandyr via tucu)

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YARN-406. Fix TestRackResolver to function in networks where "host1" resolves to a valid host. Contributed by Hitesh Shah.


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YARN-269. Resource Manager not logging the health_check_script result when taking it out. Contributed by Jason Lowe

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MAPREDUCE-4871. AM uses mapreduce.jobtracker.split.metainfo.maxsize but mapred-default has mapreduce.job.split.metainfo.maxsize (Jason Lowe via jeagles)

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MAPREDUCE-4892. Modify CombineFileInputFormat to not skew input slits' allocation on small clusters. Contributed by Bikas Saha.


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MAPREDUCE-5033. mapred shell script should respect usage flags (--help -help -h). Contributed by Andrew Wang.


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HADOOP-8917. add LOCALE.US to toLowerCase in SecurityUtil.replacePattern. Contributed by Arpit Agarwal.

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YARN-365. Change NM heartbeat handling to not generate a scheduler event on each heartbeat. (Contributed by Xuan Gong)


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HADOOP-7487. DF should throw a more reasonable exception when mount cannot be determined. Contributed by Andrew Wang.


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HDFS-4235. When outputting XML, OfflineEditsViewer can't handle some edits containing non-ASCII strings. Contributed by Colin Patrick McCabe.


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YARN-390. ApplicationCLI and NodeCLI hard-coded platform-specific line separator causes test failures on Windows. Contributed by Chris Nauroth.

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HADOOP-8569. CMakeLists.txt: define _GNU_SOURCE and _LARGEFILE_SOURCE. Contributed by Colin Patrick McCabe.


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HADOOP-9279. Document the need to build hadoop-maven-plugins for eclipse and separate project builds. Contributed by Tsuyoshi Ozawa.

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HDFS-4222. NN is unresponsive and loses heartbeats from DNs when configured to use LDAP and LDAP has issues. Contributed by Xiaobo Peng and Suresh Srinivas.

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HDFS-4482. ReplicationMonitor thread can exit with NPE due to the race between delete and replication of same file. Contributed by Uma Maheswara Rao G.



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MAPREDUCE-5013. mapred.JobStatus compatibility: MR2 missing constructors from MR1. Contributed by Sandy Ryza.

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MAPREDUCE-4846. Some JobQueueInfo methods are public in MR1 but protected in MR2. Contributed by Sandy Ryza.

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