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[expand - 2 more] - Re: How to set the max mappers per node on a per-job basis? - Hadoop - [mail # user]
...Okay, that might be what I need.  Let's say I have 10 nodes in my cluster,and they all have the same specs.  For Job A (the one that isn't CPUintensive) I want it to run with 50 ma...
   Author: jeremy p, 2014-06-11, 21:38
[expand - 1 more] - Re: Are mapper classes re-instantiated for each record? - Hadoop - [mail # user]
...Thank you!  This has helped me immensely.On Tue, May 6, 2014 at 12:47 AM, Raj K Singh  wrote: ...
   Author: jeremy p, 2014-05-07, 20:07
When copying a file to HDFS, how to control what nodes that file will reside on? - Hadoop - [mail # user]
...Hey all,  I'm dealing with kind of a bizarre use case where I need to make sure that File A is local to Machine A, File B is local to Machine B, etc.  When copying a file to HDFS, ...
   Author: jeremy p, 2013-04-09, 20:49
What happens when you have fewer input files than mapper slots? - Hadoop - [mail # user]
...Short version : let's say you have 20 nodes, and each node has 10 mapper slots.  You start a job with 20 very small input files.  How is the work distributed to the cluster?  ...
   Author: jeremy p, 2013-03-19, 20:55
Re: Will hadoop always spread the work evenly between nodes? - Hadoop - [mail # user]
...Thank you, Jeff.  Actually, it turns out the scenario you outlined is much closer to the situation I'm dealing with.  I'm going to ask a separate question about that.   On Wed...
   Author: jeremy p, 2013-03-19, 20:49
How to change the number of mappers per node for a given job - Hadoop - [mail # user]
...Hello all,  So, I have two jobs, Job A and Job B.  For Job A, I would like to have a maximum of 6 mappers per node.  However, Job B is a little different.  For Job B, I c...
   Author: jeremy p, 2013-03-11, 22:15
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