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Add jars to worker classpaths - Hadoop - [mail # user]
...What's the best way to add a number of jar's to workers class path? Preferably only adding something to one of the main configuration files (core-site.xml, mapred-site.xml) since we don't re...
   Author: Mark, 2013-04-29, 16:23
Upgrading master hardware - Hadoop - [mail # user]
...We will be adding more memory into our master node in the near future.  We generally don't mind if our map/reduce jobs are unable to run for a  short period but we are more concern...
   Author: Mark, 2011-11-16, 16:59
Re: Default Compression - Hadoop - [mail # user]
...That did it. Thanks  On 10/31/11 12:52 PM, Joey Echeverria wrote:...
   Author: Mark, 2011-10-31, 22:18
Re: LZO Compression - Hadoop - [mail # user]
...Thanks for the info, very helpful.  Whats the difference between LZO and Snappy? I like how Cloudera has  snappy support so it looks like im going to go with that but I just  ...
   Author: Mark, 2011-10-30, 16:33
Writing out a single file - Hadoop - [mail # user]
...Is there anyway I can write out the results of my mapreduce job into 1  local file... ie the opposite of getmerge?  Thanks...
   Author: Mark, 2011-07-05, 15:09
Reading HDFS files via Spring - Hadoop - [mail # user]
...Hello all,  We have a recommendation system that reads in similarity data via a  Spring context.xml as follows:      Is it possible to use Hadoop/HDFS with Spring? W...
   Author: Mark, 2011-06-27, 00:34
Configuration settings - Hadoop - [mail # user]
...We have a small 4 node clusters that have 12GB of ram and the cpus are  Quad Core Xeons.  I'm assuming the defaults aren't that generous so what are some  configuration change...
   Author: Mark, 2011-06-22, 00:46
Hardware specs - Hadoop - [mail # user]
...Can someone give some brief guidance on some (ballpark) specs for a  hadoop cluster?  - What are the typical size and memory requirements are there for a  dedicated namenode? ...
   Author: Mark, 2011-06-09, 14:59
Re: Backing up namenode - Hadoop - [mail # user]
...Thank you. I added another directory the following configuration and  restarted my cluster:   dfs.name.dir /var/hadoop/dfs/name,/var/hadoop/dfs/name.backup   However the name....
   Author: Mark, 2011-06-06, 17:21
Shared lib? - Hadoop - [mail # user]
...If I have some jars that I would like including into ALL of my jobs is  there some shared lib directory on HDFS that will be available to all of  my nodes? Something similar to how...
   Author: Mark, 2011-04-09, 02:10
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