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Re: Running unit test cases with Kerberos on - Hadoop - [mail # dev]
...thanks again alejandro!On Thu, Apr 17, 2014 at 11:37 AM, Alejandro Abdelnur wrote:Jay Vyashttp://jayunit100.blogspot.com ...
   Author: Jay Vyas, 2014-04-17, 15:49
Re: DISCUSS: use SLF4J APIs in new modules? - Hadoop - [mail # dev]
...Slf4j is definetly a great step forward.  Log4j is restrictive for complex and multi tenant apps like hadoop.Also the fact that slf4j doesn't use any magic when binding to its log provi...
   Author: Jay Vyas, 2014-04-10, 11:13
Re: MapReduce for complex key/value pairs? - Hadoop - [mail # user]
...- Adding parsing logic in mappers/reducers is the simplest, least elegantway to do it, or just writing json  strings is one simple way to do it.- You get more advanced by writing custom...
   Author: Jay Vyas, 2014-04-08, 18:36
Re: Hadoop Serialization mechanisms - Hadoop - [mail # user]
...But I believe w.r.t. "will we see performance gains when usingavro/thrift/... over writables" -- it depends on the writableimplementation.    For example, If I have  a writabl...
   Author: Jay Vyas, 2014-03-31, 10:18
Jobs fail immediately in local mode ? - Hadoop - [mail # user]
...Im running a job in local mode, and have found that it returns immediately,switching job state to FAILURE.From the /tmp/hadoop-jay directory, I see that clearly an attempt was madeto run the...
   Author: Jay Vyas, 2014-03-29, 16:33
Re: R on hadoop - Hadoop - [mail # user]
...Do you mean(1) running mapreduce jobs from R ?(2) Running R from a mapreduce job ?Without much extra ceremony, for the latter, you could use either MapReducestreaming or pig to call a custom...
   Author: Jay Vyas, 2014-03-26, 12:05
Re: Setting Hadoop on LinuxContainers Fails. - Hadoop - [mail # user]
...are your linux containers networked properly (i.e. can they see each other,and the outside world, etc...)www.linux.org/threads/linux-containers-part-4-getting-to-the-universe-ping-google-com...
   Author: Jay Vyas, 2014-03-24, 14:20
Re: Doubt - Hadoop - [mail # user]
...Certainly it is , and quite common especially if you have some highperformance machines : they  can run as mapreduce slaves and also double asmongo hosts.  The problem would of cou...
   Author: Jay Vyas, 2014-03-19, 15:55
Re: What if file format is dependent upon first few lines? - Hadoop - [mail # user]
...You could, i think, just extend fileinputformat, with isSplittable =false.  Then each file wont be brokeen up into separate blocks, andprocessed as a whole per mapper.  This is pro...
   Author: Jay Vyas, 2014-02-28, 02:33
YARN job exits fast without failure, but does nothing - Hadoop - [mail # user]
...Hi yarn:Ive traced a oozie problem to a yarn task log , which originates from anoozie submitted job:http://paste.fedoraproject.org/78099/92698193/raw/Although the above yarn task ends  ...
   Author: Jay Vyas, 2014-02-18, 04:47
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