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[MAPREDUCE-416] Move the completed jobs' history files to a DONE subdirectory inside the configured history directory - MapReduce - [issue]
...Whenever a job completes, the history file can be moved to a directory called DONE. That would make the management of job history files easier (for example, administrators can move the histo...
http://issues.apache.org/jira/browse/MAPREDUCE-416    Author: Devaraj Das, 2010-08-24, 21:13
[MAPREDUCE-95] In PipeMarRed.java, log related fields seems useless - MapReduce - [issue]
...In PipeMapRed.java, the fields log_ & LOGNAME seems useless since they remain null throughout. It might cause issues at PipeMapRed.java:[line 352]. Also, the field mapRedKey_ in ...
http://issues.apache.org/jira/browse/MAPREDUCE-95    Author: Devaraj Das, 2010-07-02, 06:24
[MAPREDUCE-222] Shuffle should be refactored to a separate task by itself - MapReduce - [issue]
...Currently, shuffle phase is part of the reduce task. The idea here is to move out the shuffle as a first-class task. This will improve the usage of the network since we will then be able to ...
http://issues.apache.org/jira/browse/MAPREDUCE-222    Author: Devaraj Das, 2009-12-01, 05:53
[MAPREDUCE-11] Cleanup JobHistory file naming to do with job recovery - MapReduce - [issue]
...The JobTracker uses the job history files for doing job recovery upon startup. To handle cases where JobTracker goes down again while the recovered job is running, there is some logic that p...
http://issues.apache.org/jira/browse/MAPREDUCE-11    Author: Devaraj Das, 2009-10-05, 06:25
[MAPREDUCE-466] The code in ReduceTask::fetchOutputs that deals with fetch failures can be refactored to a separate method - MapReduce - [issue]
...There is big chunk of code to handle fetch failures in ReduceTask::fetchOutputs. To improve the readability of code, this should be moved out to a separate method....
http://issues.apache.org/jira/browse/MAPREDUCE-466    Author: Devaraj Das, 2009-09-23, 09:16
Re: [VOTE] Commit MAPREDUCE-728 to Hadoop 0.21 - MapReduce - [mail # dev]
...It will be nice to have this in. +1   On 9/18/09 10:24 PM, "Hong Tang"  wrote:  MAPREDUCE-728 could not make the code freeze deadline primarily it couples closely with JobTrac...
   Author: Devaraj Das, 2009-09-22, 00:08
[MAPREDUCE-240] Improve the shuffle phase by using the "connection: keep-alive" and doing batch transfers of files - MapReduce - [issue]
...We should do transfers of map outputs at the granularity of  total-bytes-transferred rather than the current way of transferring a single file and then closing the connection to the ser...
http://issues.apache.org/jira/browse/MAPREDUCE-240    Author: Devaraj Das, 2009-09-11, 04:25
[MAPREDUCE-882] TestJobHistory fails sometimes - MapReduce - [issue]
...Testcase: testDoneFolderOnHDFS took 31.892 secTestcase: testJobHistoryFile took 27.901 sec        FAILEDDuplicate START_TIME seen for task task_200908161937_0001_m_0...
http://issues.apache.org/jira/browse/MAPREDUCE-882    Author: Devaraj Das, 2009-08-20, 04:18
Re: New subproject logos - MapReduce - [mail # dev]
...+1   On 6/26/09 12:12 PM, "Nigel Daley"  wrote:  Here are some logos for the new subprojects http://www.flickr.com/photos/88199325@N00/3661433605/  Please vote +1 if you ...
   Author: Devaraj Das, 2009-06-26, 11:51
[MAPREDUCE-640] Make the Reader for sampling TeraSort input multithreaded - MapReduce - [issue]
...The TeraSort sampler that reads from multiple splits to come up with the partition information can be made multi-threaded, where multiple threads would read from multiple splits concurrently...
http://issues.apache.org/jira/browse/MAPREDUCE-640    Author: Devaraj Das, 2009-06-22, 15:10
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