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[MAPREDUCE-6208] There should be an input format for MapFiles which can be configured so that only a fraction of the input data is used for the MR process - MapReduce - [issue]
...In some cases there are large amounts of data organized in MapFiles, e.g., from previous MapReduce tasks, and only a fraction of the data is to be processed in a MR task. The current approac...
http://issues.apache.org/jira/browse/MAPREDUCE-6208    Author: Jens Rabe, 2014-12-27, 12:18
[MAPREDUCE-6205] Update the value of the new version properties of the deprecated property "mapred.child.java.opts" - MapReduce - [issue]
...In current hadoop code, the old property "mapred.child.java.opts" is deprecated and its new versions are MRJobConfig.MAP_JAVA_OPTS and MRJobConfig.REDUCE_JAVA_OPTS. However, when user set a ...
http://issues.apache.org/jira/browse/MAPREDUCE-6205    Author: sam liu, 2014-12-26, 16:52
[MAPREDUCE-6155] MapFiles are not always correctly detected by SequenceFileInputFormat - MapReduce - [issue]
...MapFiles are not correctly detected by SequenceFileInputFormat.This is because the listStatus method only detects a MapFile correctly if the path it checks is a directory - it then replaces ...
http://issues.apache.org/jira/browse/MAPREDUCE-6155    Author: Jens Rabe, 2014-12-26, 12:24
Hadoop-QA finds FindBugs issues in code I did not even touch - MapReduce - [mail # dev]
...Hello,I just submitted two small patches for MAPREDUCE-6155 and MAPREDUCE-6206. However, the automatic QA there states that my patches introduce 13 new FindBugs, but they occur in files I di...
   Author: Jens Rabe, 2014-12-25, 21:22
[MAPREDUCE-6206] TestAggregatedTransferRate fails on non-US systems - MapReduce - [issue]
...When running the test TestAggregatedTransferRate from org.apache.hadoop.mapreduce.task.reduce.TestShuffleScheduler on a non-US system (or, to be more precise, a system which does not use the...
http://issues.apache.org/jira/browse/MAPREDUCE-6206    Author: Jens Rabe, 2014-12-25, 18:04
[MAPREDUCE-5130] Add missing job config options to mapred-default.xml - MapReduce - [issue]
...I came across that mapreduce.map.java.opts and mapreduce.reduce.java.opts were missing in mapred-default.xml.  I'll do a fuller sweep to see what else is missing before posting a patch....
http://issues.apache.org/jira/browse/MAPREDUCE-5130    Author: Sandy Ryza, 2014-12-25, 17:17
[MAPREDUCE-6207] TestAggregatedTransferRate fails on non-US systems - MapReduce - [issue]
...When running the test TestAggregatedTransferRate from org.apache.hadoop.mapreduce.task.reduce.TestShuffleScheduler on a non-US system (or, to be more precise, a system which does not use the...
http://issues.apache.org/jira/browse/MAPREDUCE-6207    Author: Jens Rabe, 2014-12-25, 16:55
[MAPREDUCE-6204] TestJobCounters should use new properties instead JobConf.MAPRED_TASK_JAVA_OPTS - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-6204    Author: sam liu, 2014-12-25, 13:04
[MAPREDUCE-6203] if log-aggregation is enable and run some MR job, the AM log will be aggregated.then disable it,then in MR JobHistoryServer and YARN RM UI link,the AM log cannot be visible - MapReduce - [issue]
...as the Summary description, I think for the MR JobHistory Server, should not let “yarn.log-aggregation-enable” affect the history job,even “yarn.log-aggregation-enable” is false....
http://issues.apache.org/jira/browse/MAPREDUCE-6203    Author: huangyitian, 2014-12-24, 13:03
[MAPREDUCE-4815] FileOutputCommitter.commitJob can be very slow for jobs with many output files - MapReduce - [issue]
...If a job generates many files to commit then the commitJob method call at the end of the job can take minutes.  This is a performance regression from 1.x, as 1.x had the tasks commit di...
http://issues.apache.org/jira/browse/MAPREDUCE-4815    Author: Jason Lowe, 2014-12-23, 22:21
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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