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[MAPREDUCE-6071] JobImpl#makeUberDecision doesn't log that Uber mode is disabled because of too much CPUs - MapReduce - [issue]
...JobImpl#makeUberDecision usually logs why the Job cannot be launched as Uber mode(e.g. "too much RAM;" or something).  About CPUs, it's not logged currently. We should log it when "too ...
http://issues.apache.org/jira/browse/MAPREDUCE-6071    Author: Tsuyoshi OZAWA, 2014-09-06, 15:06
[MAPREDUCE-2841] Task level native optimization - MapReduce - [issue]
...I'm recently working on native optimization for MapTask based on JNI. The basic idea is that, add a NativeMapOutputCollector to handle k/v pairs emitted by mapper, therefore sort, spill, IFi...
http://issues.apache.org/jira/browse/MAPREDUCE-2841    Author: Binglin Chang, 2014-09-06, 08:21
[MAPREDUCE-6076] Zero map split input length combine with none zero  map split input length will cause MR1 job hung. - MapReduce - [issue]
...Zero map split input length combine with none zero map split input length will cause MR1 job hung. This problem may happen when use HBASE input split(TableSplit).HBASE split input length can...
http://issues.apache.org/jira/browse/MAPREDUCE-6076    Author: zhihai xu, 2014-09-06, 04:12
[MAPREDUCE-6074] native-task: fix release audit, javadoc, javac warnings - MapReduce - [issue]
...RAT is showing some release audit warnings. They all look spurious - just need to do a little cleanup and add excludes...
http://issues.apache.org/jira/browse/MAPREDUCE-6074    Author: Todd Lipcon, 2014-09-06, 03:59
[MAPREDUCE-6075] HistoryServerFileSystemStateStore can create zero-length files - MapReduce - [issue]
...When the history server state store writes a token file it uses IOUtils.cleanup() to close the file which will silently ignore errors.  This can lead to empty token files in the state s...
http://issues.apache.org/jira/browse/MAPREDUCE-6075    Author: Jason Lowe, 2014-09-06, 01:03
[MAPREDUCE-6046] Change the class name for logs in RMCommunicator.java - MapReduce - [issue]
...It is little confusing when the logs gets generated with the class name as RMContainerAllocator and not present in RMContainerAllocator.java.RMCommunicator.java  private static fin...
http://issues.apache.org/jira/browse/MAPREDUCE-6046    Author: Devaraj K, 2014-09-06, 00:31
[MAPREDUCE-5933] Enable MR AM to post history events to the timeline server - MapReduce - [issue]
...Nowadays, MR AM collects the history events and writes it to HDFS for JHS to source. With the timeline server, MR AM can put these events there....
http://issues.apache.org/jira/browse/MAPREDUCE-5933    Author: Zhijie Shen, 2014-09-05, 22:53
Review request: YARN-1492 (i.e. the YARN shared cache) - MapReduce - [mail # dev]
...Hi All,This email is to draw more attention to YARN-1492 and hopefully gaintraction on code reviews. At Twitter we have been running the shared cacheon our clusters and it has already served...
   Author: Chris Trezzo, 2014-09-05, 21:41
[MAPREDUCE-5951] Add support for the YARN Shared Cache - MapReduce - [issue]
...Implement the necessary changes so that the MapReduce application can leverage the new YARN shared cache (i.e. YARN-1492).Specifically, allow per-job configuration so that MapReduce jobs can...
http://issues.apache.org/jira/browse/MAPREDUCE-5951    Author: Chris Trezzo, 2014-09-05, 19:42
[MAPREDUCE-6069] native-task: Style fixups and dead code removal - MapReduce - [issue]
...A few more cleanup things we should address: fix style issues (eg lines too long, bad indentation, commented-out code blocks, etc) both in Java and C++ Found a few pieces of unused code by r...
http://issues.apache.org/jira/browse/MAPREDUCE-6069    Author: Todd Lipcon, 2014-09-05, 18:45
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