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[MAPREDUCE-6057] Remove obsolete entries from mapred-default.xml - MapReduce - [issue]
...The following properties are defined in mapred-default.xml but no longer exist in MRJobConfig.  map.sort.class  mapred.child.env  mapred.child.java.opts &n...
http://issues.apache.org/jira/browse/MAPREDUCE-6057    Author: Ray Chiang, 2015-01-21, 21:01
[MAPREDUCE-6209] Implement a heuristic to auto-size Java heap of MRAppMaster container proportional to the job size - MapReduce - [issue]
...The size of Java heap required by the AM is linearly proportional to the size of the MR job (number of mappers/splits and reducers). it would be nice if users did not have to adjust the AM c...
http://issues.apache.org/jira/browse/MAPREDUCE-6209    Author: Gera Shegalov, 2015-01-21, 11:14
[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, 2015-01-21, 00:10
[MAPREDUCE-1981] Improve getSplits performance by using listLocatedStatus - MapReduce - [issue]
...This jira will make FileInputFormat and CombinedFileInputForm to use the new API, thus reducing the number of RPCs to HDFS NameNode....
http://issues.apache.org/jira/browse/MAPREDUCE-1981    Author: Hairong Kuang, 2015-01-20, 21:36
[MAPREDUCE-6219] Reduce memory required for FileInputFormat located status optimization - MapReduce - [issue]
...MAPREDUCE-1981 introduced an optimization to drastically reduce the number of namenode operations required to compute input splits when processing a directory.  However it requires more...
http://issues.apache.org/jira/browse/MAPREDUCE-6219    Author: Jason Lowe, 2015-01-20, 21:36
[MAPREDUCE-5804] TestMRJobsWithProfiler#testProfiler timesout - MapReduce - [issue]
...testProfiler(org.apache.hadoop.mapreduce.v2.TestMRJobsWithProfiler)  Time elapsed: 154.972 sec  <<< ERROR!java.lang.Exception: test timed out after 120000 milliseconds at ...
http://issues.apache.org/jira/browse/MAPREDUCE-5804    Author: Mit Desai, 2015-01-19, 06:39
[MAPREDUCE-5397] AM crashes because Webapp failed to start on multi node cluster - MapReduce - [issue]
...I set up a 12 nodes cluster and tried submitting jobs but get this exception.But job is able to succeed after AM crashes and retry a few times(2 or 3)2013-07-12 18:56:28,438 INFO [main] org....
http://issues.apache.org/jira/browse/MAPREDUCE-5397    Author: Jian He, 2015-01-19, 00:52
[MAPREDUCE-6218] It should be possible to chain-load multiple MapFiles on the fly and read the records in an ascending order - MapReduce - [issue]
...In a scenario where there are many MapFiles which all share the same key/value types, e.g., when dealing with measured data from sensors, it should be possible to chain-load multiple MapFile...
http://issues.apache.org/jira/browse/MAPREDUCE-6218    Author: Jens Rabe, 2015-01-18, 13:58
[MAPREDUCE-6217] DistCp return success even if it is killed - MapReduce - [issue]
...When a distcp job is killed by yarn application -kill, it does not report a failure to distcp caller.This is due to: return DistCpConstants.SUCCESS;instead of the return code of the underlyi...
http://issues.apache.org/jira/browse/MAPREDUCE-6217    Author: Mathieu Chataigner, 2015-01-16, 17:19
[MAPREDUCE-6216] Seeking backwards in MapFiles does not always correctly sync the underlying SequenceFile, resulting in "File is corrupt" exceptions - MapReduce - [issue]
...In some occasions, when reading MapFiles which were generated by MapFileOutputFormat with BZIP2 BLOCK compression, using getClosest(key, value, true) on the MapFile reader causes an IOExcept...
http://issues.apache.org/jira/browse/MAPREDUCE-6216    Author: Jens Rabe, 2015-01-15, 10:44
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB