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Re: Serving Media Streaming - Hadoop - [mail # user]
...Check out S4 http://s4.io/  On Fri, Apr 29, 2011 at 10:13 PM, Luiz Fernando Figueiredo  wrote:  ...
   Author: Ted Dunning, 2011-04-30, 20:31
Re: questions about hadoop map reduce and compute intensive related applications - Hadoop - [mail # general]
...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 ...
   Author: Ted Dunning, 2011-04-30, 20:30
Re: providing the same input to more than one Map task - Hadoop - [mail # user]
...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 ...
   Author: Ted Dunning, 2011-04-23, 01:33
[expand - 1 more] - Re: Estimating Time required to compute M/Rjob - Hadoop - [mail # user]
...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 ...
   Author: Ted Dunning, 2011-04-18, 00:07
[expand - 1 more] - Re: Using global reverse lookup tables - Hadoop - [mail # user]
...On Fri, Apr 15, 2011 at 11:45 AM, W.P. McNeill  wrote:   likely to be much better.  One helpful tweak would be to put a Bloom filter in front of the MapFile to avoid probing i...
   Author: Ted Dunning, 2011-04-15, 21:43
Re: Dynamic Data Sets - Hadoop - [mail # user]
...Hbase is very good at this kind of thing.  Depending on your aggregation needs OpenTSDB might be interesting since they store and query against large amounts of time ordered data simila...
   Author: Ted Dunning, 2011-04-14, 03:12
[expand - 6 more] - Re: Memory mapped resources - Hadoop - [mail # user]
...Benson is actually a pretty sophisticated guy who knows a lot about mmap.  I engaged with him yesterday on this since I know him from Apache.  On Tue, Apr 12, 2011 at 7:16 PM, M. C...
   Author: Ted Dunning, 2011-04-13, 04:09
[expand - 1 more] - Re: Architectural question - Hadoop - [mail # user]
...The original poster said that there was no common key.  Your suggestion presupposes that such a key exists.  On Sun, Apr 10, 2011 at 4:29 PM, Mehmet Tepedelenlioglu  wrote: &n...
   Author: Ted Dunning, 2011-04-11, 02:08
[expand - 1 more] - Re: We are looking to the root of the problem that caused us IOException - Hadoop - [mail # user]
...yes.  At least periodically.  You now have a situation where the age distribution of blocks in each datanode is quite different.  This will lead to different evolution of whic...
   Author: Ted Dunning, 2011-04-06, 07:55
Re: HBase schema design - Hadoop - [mail # user]
...The hbase list would be more appropriate.  See http://hbase.apache.org/mail-lists.html  There is an active IRC channel, bu t your question fits the mailing list better so pop on ov...
   Author: Ted Dunning, 2011-04-04, 15:59
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