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Re: [RESULT] - [VOTE] Rename hadoop branches post hadoop-1.x - MapReduce - [mail # dev]
...Steve,  Todd is correct, we are running two yarn trains here at Yahoo.  We are tryi ng to stabilize 0.23 and get it pushed out to production, while also workin g on stabilizing bra...
   Author: Robert Evans, 2012-04-12, 18:19
Re: Streaming with custom input format - MapReduce - [mail # user]
...Rebase the patch and upload it.  It looked like it was fairly close.  It is  just such a big patch that it is hard to fully review it all. In a short t ime frame.  And it...
   Author: Robert Evans, 2012-04-06, 13:58
Re: Possible to poll JobTracker for information from any language? - MapReduce - [mail # user]
...Ryan, Please don't cross post.  On the 1.0 line I do not know of any way to get this information out for an y language but java.  And even then it is simplest to use the hadoop cli...
   Author: Robert Evans, 2012-03-29, 15:32
Re: Conf property: mapred.max.map.failures.percent - MapReduce - [mail # user]
...It has been deprecated and changed to mapreduce.map.failures.maxpercent.  I f you set the old one you will get a warning message saying to upgrade to t he new one, but the old one shoul...
   Author: Robert Evans, 2012-03-29, 14:49
[expand - 2 more] - Re: Merge sorting reduce output files - MapReduce - [mail # user]
...Niels,  Sorry it has taken me so long to respond.  Today has been a very crazy day.  I am just guessing what your algorithm is for auto-complete.  I really don' t know so...
   Author: Robert Evans, 2012-02-29, 23:07
Re: Tow Jobs share one input file - MapReduce - [mail # user]
...Pig tries to do this with some of their optimizations.  You ultimately have to combine them together into a single map/reduce job, with two separate execution paths.  It is complic...
   Author: Robert Evans, 2012-02-27, 15:30
Mixed Mode Environments - MapReduce - [mail # dev]
...I just noticed that HADOOP-7484 and MAPREDUCE-3500 recently got committed t o trunk and 0.23.  I missed them before they were committed.  I am curious if we are dropping support fo...
   Author: Robert Evans, 2012-02-02, 16:15
Re: Reduce shuffle data transfer takes excessively long - MapReduce - [mail # user]
...If just changing the buffer to 4k makes a big difference could you at a min imum file a JIRA to change that buffer size?  I know that it is not a final  fix but it sure seems like ...
   Author: Robert Evans, 2012-01-31, 21:22
Re: Newbie Question On Next Generation Map Reduce - MapReduce - [mail # user]
...We are trying very hard to maintain API compatibility and your code should  not need anything more then a recompile, which may be required for some cod e to work properly.  However...
   Author: Robert Evans, 2012-01-13, 16:53
Re: Hadoop map reduce merge algorithm - MapReduce - [mail # user]
...My understanding is that the mapper will cache the output in memory until i ts memory buffer fills up, at which point it will sort the data and spill i t to disk.  Once a given number o...
   Author: Robert Evans, 2012-01-12, 19:27
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