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Set the number of maps - Hadoop - [mail # user]
...The option since 0.21 was renamed to  mapreduce.tasktracker.map.tasks.maximum, and like Harsh said to you, is is a TaskTracker service level option.  Another thing is that this opt...
   Author: Marcos Ortiz , 2012-11-01, 18:03
Insight on why distcp becomes slower when adding nodemanager - Hadoop - [mail # user]
...On 10/31/2012 02:23 PM, Michael Segel wrote: > Not sure. > > Lots of things can effect your throughput. > Networking is my first guess. Which is why I asked about the number of &...
   Author: Marcos Ortiz , 2012-10-31, 20:27
File Permissions on s3 FileSystem - Hadoop - [mail # user]
...El 23/10/12 13:32, Parth Savani escribi�: > Hello Everyone, >         I am trying to run a hadoop job with s3n as my filesystem. > I changed the following prop...
   Author: Marcos Ortiz , 2012-10-23, 18:09
hadoop 0.23.3 configurations - Hadoop - [mail # user]
...Regards, Visioner Look here, is a quick and useful guide to do this: http://practicalcloudcomputing.com/post/26448910436/install-and-run-hadoop-yarn-in-10-easy-steps  Best wishes El 11/...
   Author: Marcos Ortiz , 2012-10-11, 14:14
Hadoop release - Hadoop - [mail # general]
...Regards, Visioner The 0.23.3 is not recommended for production yet. The 1.0.X is the stable release recommended for that.  Of course, if you want, you can use 0.23, but it�s not recom...
   Author: Marcos Ortiz , 2012-10-11, 13:49
issue with permissions of mapred.system.dir - Hadoop - [mail # user]
...On 10/09/2012 07:44 PM, Goldstone, Robin J. wrote: > I am bringing up a Hadoop cluster for the first time (but am an  > experienced sysadmin with lots of cluster experience) and r...
   Author: Marcos Ortiz , 2012-10-10, 00:07
sqoop jobs - Hadoop - [mail # user]
...Which version of Sqoop are you using? Which version of Hadoop?  On 10/05/2012 09:45 AM, Kartashov, Andy wrote: > > Guys, > > Have any one successfully executed commands like...
   Author: Marcos Ortiz , 2012-10-05, 14:51
Which hardware to choose - Hadoop - [mail # user]
...Which is a reasonable number in this hardware?  On 10/02/2012 09:40 PM, Michael Segel wrote: > I think he's saying that its 24 maps 8 reducers per node and at 48GB that could be too ...
   Author: Marcos Ortiz , 2012-10-03, 01:57
Hadoop Archives under 0.23 - Hadoop - [mail # user]
...El 02/10/2012 2:12, Alexander Hristov escribi�: > Hello > > I'm trying to test the Hadoop archive functionality under 0.23 and I  > can't get it working. > > I have ...
   Author: Marcos Ortiz , 2012-10-02, 13:13
WG: Choosing a Hadoop distribution - Hadoop - [mail # general]
...On 09/24/2012 06:29 AM, Christian Sch�fer wrote: > I think a good starting point for that distribution guide would be a feature matrix where all reasonable distributions could be compai...
   Author: Marcos Ortiz , 2012-09-24, 13:41