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EmptyInputFormat for Hadoop 2? - MapReduce - [mail # user]
...The version of EmptyInputFormat available in the tarball (I downloaded CDH4 if that matteres) uses mapred, not mapreduce, and therefore is not compatible with calls to setInputFormatClass(),...
   Author: Keith Wiley, 2014-01-17, 18:56
[expand - 1 more] - Re: DistributedCache is empty - MapReduce - [mail # user]
...2.0.0  The problem was I was creating a new Configuration and giving it to the Job ctor (which I believe is demonstrated in some tutorials) whereas the correct behavior was to retrieve ...
   Author: Keith Wiley, 2014-01-17, 18:32
Article: 'How to Deploy Hadoop 2 (Yarn) on EC2' - MapReduce - [mail # user]
...I've posted an article on my website that details precisely how to deploy Hadoop 2.0 with Yarn on AWS (or least how I did it, whether or not such an approach will translate to others' circum...
   Author: Keith Wiley, 2013-04-17, 19:58
webapps/ CLASSPATH err - MapReduce - [mail # user]
...This is Hadoop 2.0, but using the separate MR1 package (hadoop-2.0.0-mr1-cdh4.1.3), not yarn.  I formatted the namenode ("./bin/hadoop namenode -format") and saw no errors in the shell ...
   Author: Keith Wiley, 2013-02-19, 19:37
[expand - 2 more] - Re: .deflate trouble - MapReduce - [mail # user]
...Good call.  We can't use the conventional web-based JT due to corporate access issues, but I looked at the job_XXX.xml file directly, and sure enough, it set mapred.output.compress to t...
   Author: Keith Wiley, 2013-02-14, 23:46
Can't get away from "replicated to 0 nodes, instead of 1" - MapReduce - [mail # user]
...I stumble a bit and somehow get HDFS going again, I'm never quite sure  how, but within a day or two, it all falls over.  Here's a typical  example.  At this point both t...
   Author: Keith Wiley, 2012-09-06, 16:06
Re: could only be replicated to 0 nodes, instead of 1 - MapReduce - [mail # user]
...I had moved the data directory to the larger disk but left the namenode  directory on the smaller disk figuring it didn't need much room.  Moving  that to the larger disk seem...
   Author: Keith Wiley, 2012-09-04, 18:03
[expand - 1 more] - Re: Adding additional storage - MapReduce - [mail # user]
...That appears to have worked.  Thanks.  On Aug 27, 2012, at 11:52 , Harsh J wrote:  wrote: would like to use a larger disk (mounted and ready to go of course).  I  do...
   Author: Keith Wiley, 2012-08-27, 21:52
Re: Learning hadoop - MapReduce - [mail # user]
...Tom White's book (O'Reilly). ________________________________________ Sent  from my phone, please excuse my brevity. Keith Wiley, [EMAIL PROTECTED] , http://keithwiley.com   Pravin...
   Author: Keith Wiley, 2012-08-23, 17:37
Re: hadoop streaming using java as mapper & reducer - MapReduce - [mail # dev]
...I'm confused.  First, most people don't use streaming in conjunction  with Java since Hadoop supports Java directly...although I think you  were saying in your parenthetical c...
   Author: Keith Wiley, 2012-05-29, 23:14
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