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Re: Copy Vs DistCP - Hadoop - [mail # user]
...DistCP is a full blown mapreduce job (mapper only, where the mappers do a "fully" parallel copy to the detsination).  CP appears (correct me if im wrong) to simply invoke the FileSystem...
   Author: Jay Vyas, 2013-04-10, 23:51
Re: No bulid.xml when to build FUSE - Hadoop - [mail # user]
...hadoop-hdfs builds with maven, not ant.  You might also need to install the serialization libraries.  See http://wiki.apache.org/hadoop/HowToContribute .  As an aside, you cou...
   Author: Jay Vyas, 2013-04-10, 14:28
Re: MVN repository for hadoop trunk - Hadoop - [mail # user]
...Hi guys Hope this helps someone:  I put in a pull request for adding the hadoop snapshot dependencies into a pom file.  Its pretty simple - just add the repository XML block in the...
   Author: Jay Vyas, 2013-04-06, 22:11
Re: How do _you_ document your hadoop jobs? - Hadoop - [mail # user]
...Wow that's very heavy weight and difficult to modify. Why not graphviz or generating the diagrams from some Or text format.?    On Feb 25, 2013, at 4:11 AM, "David Parks"  wro...
   Author: Jay Vyas, 2013-02-25, 14:55
Re: core-site.xml file is being ignored by new Configuration() - Hadoop - [mail # user]
...Good catch with that string.length() - you're right, that was a silly mistake. --- sorry - im not sure what i was thinking. it was a late night  In any case, the same code with file.exi...
   Author: Jay Vyas, 2013-01-17, 15:00
Re: Configuration object not loading parameters in unit tests - Hadoop - [mail # user]
...Is there a way to have the Configuration report wether or not it was able / unable to find the default configuration resources? It looks at the moment that it simply prints out all the resou...
   Author: Jay Vyas, 2013-01-16, 19:49
Re: FileSystem.workingDir vs mapred.local.dir - Hadoop - [mail # user]
...what do you mean by "workingdir for a filesystem" ?  I never thought that a fileSystem should need or have a special workingDir ?   On Tue, Jan 15, 2013 at 12:43 PM, Hemanth Yamija...
   Author: Jay Vyas, 2013-01-15, 18:47
Re: Hello and request some advice. - Hadoop - [mail # user]
...for the basics, all you need is a java IDE .  Hadoop Map/Reduce can run in local filesystem mode without any kind of HDFS backing.   On Fri, Jan 4, 2013 at 12:45 PM, Nitin Pawar wr...
   Author: Jay Vyas, 2013-01-04, 17:47
Re: Input splits for sequence file input - Hadoop - [mail # user]
...This question is fundamentally flawed : it assumes that a mapper will ask for anything.  The mapper class "run" method reads from a record reader.  The question you really should a...
   Author: Jay Vyas, 2012-12-03, 05:52
Other file systems for hadoop - Hadoop - [mail # user]
...what are the minimal requirements to implement the filesystem interface for hdfs?  I was thinking it might be cool to directly implement a 100% memory filesystem, just for the hell of i...
   Author: Jay Vyas, 2012-10-30, 15:46
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