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Re: QuickSort array out of bound exception during Secondary Sort - MapReduce - [mail # user]
...Without access to org.skyz.basic.KeyComparator.compare it is hard to say why this is happening. It looks like you got an array with 0 entries and the given function could not handle that. &n...
   Author: Robert Evans, 2013-02-07, 17:03
Re: Instructions on how to run Apache Hadoop 2.0.2-alpha? - MapReduce - [mail # user]
...It is very long and confusing. Here is my understanding of what happened even though I was not around for all of it.  0.1 - 0.20 was mostly main line development.  At that point th...
   Author: Robert Evans, 2013-01-04, 23:28
Re: One output file per node - MapReduce - [mail # dev]
...Tejay,  The way the scheduler works you are not guaranteed to get one reducer per node.  Reducers are not scheduled based off of locality of any kind, and even if they were the sch...
   Author: Robert Evans, 2012-12-13, 14:56
Re: Hadoop Java compilation error - MapReduce - [mail # user]
...Hadoop is not a java runtime environment it runs special map/reduce applications.  Go search for "how to write a hadoop program" and there will be lots of examples or you can pick up a ...
   Author: Robert Evans, 2012-11-14, 21:36
[expand - 1 more] - Re: Shuffle phase: fine-grained control of data flow - MapReduce - [mail # dev]
...Jiwei,  Ok so you are specifically looking at reducing overall network bandwidth of skewed map outputs, not all map outputs.  That would very much mean that #1 and #3 are off base....
   Author: Robert Evans, 2012-11-08, 16:59
Re: division by zero in getLocalPathForWrite() - MapReduce - [mail # dev]
...It looks like you are running with an older version of 2.0, even though it does not really make much of a difference in this case,  The issue shows up when getLocalPathForWrite thinks t...
   Author: Robert Evans, 2012-10-25, 14:07
Re: pluggable resources - MapReduce - [mail # dev]
...I agree that having it be pluggable opens up a lot of new possibilities. +1 for the idea.  Although I think in the short term we are having enough problems as it is with just CPU and me...
   Author: Robert Evans, 2012-10-22, 16:56
Re: Can some committer commit MAPREDUCE-4479? - MapReduce - [mail # dev]
...Looking at it now.  Thanks for being a squeaky wheel :).   On 10/19/12 12:38 PM, "Mariappan Asokan"  wrote:  ...
   Author: Robert Evans, 2012-10-19, 17:44
Re: API Design: getClusterMetrics - MapReduce - [mail # dev]
...Sapsi,  I am not positive on this but I think the reason for this is to future proof the API.  If in the future we want to add in new optional parameters, I believe that it is impo...
   Author: Robert Evans, 2012-10-10, 14:30
Re: Fix versions for commits branch-0.23 - MapReduce - [mail # dev]
...I don't see much of a reason to have the same JIRA listed under both 0.23 and 2.0.  I can see some advantage of being able to see what went into 0.23.X by looking at a 2.0.X CHANGES.txt...
   Author: Robert Evans, 2012-10-09, 16:09
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