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mapreduce.map.env - Hadoop - [mail # user]
...Hello,  Is this still valid? Can i set  mapreduce.{map|reduce}.env  When i google i get links  http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CDIQFjA...
   Author: Saptarshi Guha, 2013-02-13, 17:35
[expand - 1 more] - Re: Child JVM, Distributed Cache and Language Embedding - Hadoop - [mail # user]
...Hmm, distributedcache.getLocalCacheArchives   On Tue, Feb 12, 2013 at 9:28 PM, Saptarshi Guha wrote:  ...
   Author: Saptarshi Guha, 2013-02-13, 06:55
Keep output folder despite a failed Job - Hadoop - [mail # user]
...Hello,  If  i have a failure during a job, is there a way I prevent the output folder from being deleted?  Cheers Saptarshi...
   Author: Saptarshi Guha, 2011-08-10, 01:39
[expand - 1 more] - Re: Symlinks for cacheArchives - Hadoop - [mail # user]
...1. Hmm, tgz files are unzipped but the name doesn't change. 2. Append "#name'  to be symlinked there.   On Thu, Apr 28, 2011 at 10:23 PM, Saptarshi Guha  wrote: fter 3353_-129...
   Author: Saptarshi Guha, 2011-04-29, 15:57
[expand - 1 more] - Re: TextInputFormat and Gzip encoding - wordcount displaying binary data - Hadoop - [mail # user]
...True, my naming is Hmm, now i know. thanks  On Mon, Mar 21, 2011 at 4:01 PM, Niels Basjes  wrote:...
   Author: Saptarshi Guha, 2011-03-21, 23:10
Pass -D options to hadoop jar - Hadoop - [mail # user]
...Hello,  A rather basic question, how do I pass the -D option to the wordcount? I've tried several without much success   hadoop jar  /usr/lib/hadoop/hadoop-0.20.2+320-examples...
   Author: Saptarshi Guha, 2010-11-24, 19:30
[expand - 1 more] - Re: MultipleOutputFormat and MultipleOutputs - which will last? - Hadoop - [mail # user]
...I prefer the latter(MultipleOutputFormat) as I would not have had to change my code. Everything would have stayed in the outputformat. And I hardly need the extra features. Oh well, got to k...
   Author: Saptarshi Guha, 2010-10-27, 05:27
Task JVM reuse: A Question regarding hadoop 0.20.1 - Hadoop - [mail # user]
...Hello, I have set mapred.job.reuse.jvm.num.tasks to -1 for re-using the JVM. My intention is to run a helper program at the beginning of the job and then feed the key/value pairs from the ta...
   Author: Saptarshi Guha, 2010-07-09, 11:38
Partitioner in Hadoop 0.20 - Hadoop - [mail # user]
...Hello,  in hadoop 0.20.2 (current), the Partitioner class does not extend JobConfigurable (as it did in Hadoop pre 0.19). Does this mean there isn't a way to set some configurable optio...
   Author: Saptarshi Guha, 2010-06-30, 04:05
Is the sort(in sort and shuffle) always required - Hadoop - [mail # user]
...Hello, My question: is the sort (in the sort and shuffle) absolutely required? If I wanted mapreduce to partition (using the map) and then aggregate(using reduce) without a need for the keys...
   Author: Saptarshi Guha, 2010-06-19, 16:16
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB