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Re: OT: anyone else going to berlin buzzwords? - Hadoop - [mail # general]
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...I will be there Monday-Thursday. Monday sounds good for food and beverages. On Thu, May 12, 2011 at 2:13 AM, Doug Cutting wrote: ...
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Author: Ted Dunning,
2011-05-12, 15:44
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Re: Defining Hadoop Compatibility -revisiting- - Hadoop - [mail # general]
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...As a specific example of how these are important, over in Mahout-land we have been wrestling with determining just what it means to have dependencies in the lib directory inside a jar. ...
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Author: Ted Dunning,
2011-05-12, 04:37
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Re: Suggestions for swapping issue - Hadoop - [mail # user]
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...How is it that 36 processes are not expected if you have configured 48 + 12 = 50 slots available on the machine? On Wed, May 11, 2011 at 11:11 AM, Adi wrote: ...
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Author: Ted Dunning,
2011-05-11, 18:16
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Re: HDFS - MapReduce coupling - Hadoop - [mail # user]
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...Yes. There is quite a bit of need for the local file system in clustered mode. For one think, all of the shuffle intermediate files are on local disk. For another, the dist...
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Author: Ted Dunning,
2011-05-02, 06:56
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Re: Applications creates bigger output than input? - Hadoop - [mail # user]
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...Cooccurrence analysis is commonly used in recommendations. These produce large intermediates. Come on over to the Mahout project if you would like to talk to a bunch of people wh...
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Author: Ted Dunning,
2011-04-30, 20:32
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Re: Serving Media Streaming - Hadoop - [mail # user]
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...Check out S4 http://s4.io/ On Fri, Apr 29, 2011 at 10:13 PM, Luiz Fernando Figueiredo wrote: ...
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Author: Ted Dunning,
2011-04-30, 20:31
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Re: questions about hadoop map reduce and compute intensive related applications - Hadoop - [mail # general]
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...On Sat, Apr 30, 2011 at 12:18 AM, elton sky wrote: Not quite sure what algorithms you mean here, but for trivial parallelism, map-reduce is a fine way to go. MPI supports ...
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Author: Ted Dunning,
2011-04-30, 20:30
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Re: providing the same input to more than one Map task - Hadoop - [mail # user]
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...I would recommend taking this question to the Mahout mailing list. The short answer is that matrix multiplication by a column vector is pretty easy. Each mapper reads the vector ...
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Author: Ted Dunning,
2011-04-23, 01:33
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Re: Estimating Time required to compute M/Rjob - Hadoop - [mail # user]
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...Turing completion isn't the central question here, really. The truth is, map-reduce programs have considerably pressure to be written in a scalable fashion which limits them to fairly ...
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Author: Ted Dunning,
2011-04-18, 00:07
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Re: Estimating Time required to compute M/Rjob - Hadoop - [mail # user]
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...Sounds like this paper might help you: Predicting Multiple Performance Metrics for Queries: Better Decisions Enabled by Machine Learning by Ganapathi, Archana, Harumi Kuno, Umeshwar Da...
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Author: Ted Dunning,
2011-04-16, 22:03
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