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Re: hadoop1.2.1 speedup model - MapReduce - [mail # dev]
...How many times did you run the experiment at each setting?  What is the standard deviation for each of these settings.  It could be that you are simply running into the error bound...
   Author: Robert Evans, 2013-09-09, 14:57
[expand - 1 more] - Re: [VOTE] Release Apache Hadoop 0.23.9 - MapReduce - [mail # dev]
...+1 downloaded the release.  Ran a couple of simple jobs and everything worked.  On 7/1/13 12:20 PM, "Thomas Graves"  wrote:  ...
   Author: Robert Evans, 2013-07-02, 18:50
Re: mapred.child.ulimit in MR2 - MapReduce - [mail # dev]
...Sandy,  I think it was something that was missed in the port to YARN and the dead code was cleaned up as part of HADOOP-8288.  If you have a use case for it or are worried about ba...
   Author: Robert Evans, 2013-06-19, 15:16
Re: InputFormat to regroup splits of underlying InputFormat to control number of map tasks - MapReduce - [mail # dev]
...This sounds similar to MultiFileInputFormat  http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-mapreduce-project/h adoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/jav...
   Author: Robert Evans, 2013-06-19, 15:01
Re: Visual debugging tools for hadoop - MapReduce - [mail # dev]
...Yes data flow visualizations definitely sound like something that would be good for Ambari.  If you are interested in debugging Hadoop jobs there is also the Hadoop Development Tools pr...
   Author: Robert Evans, 2013-06-18, 17:53
Re: [VOTE] Plan to create release candidate for 0.23.8 - MapReduce - [mail # dev]
...+1  On 5/17/13 4:10 PM, "Thomas Graves"  wrote:  ...
   Author: Robert Evans, 2013-05-20, 22:37
Re: JVM vs container memory configs - MapReduce - [mail # dev]
...For us we typically leave a 500MB difference between the heap and the container size.  I think we can make this smaller, but we have not really tried.   On 5/3/13 11:20 AM, "Karthi...
   Author: Robert Evans, 2013-05-03, 20:31
Re: Versions - Confusion - MapReduce - [mail # dev]
...It is kind of complex.  Up until 0.20 everything was fairly regular like you would expect.  In 0.20 there was a split where security was added in to a branch and started to be numb...
   Author: Robert Evans, 2013-04-26, 21:34
Re: [VOTE] Release Apache Hadoop 2.0.4-alpha - MapReduce - [mail # dev]
...+1 (binding)  Downloaded the tar ball and ran some simple jobs.   On 4/17/13 2:01 PM, "Siddharth Seth"  wrote:  ...
   Author: Robert Evans, 2013-04-17, 21:50
Re: About LocalResource - MapReduce - [mail # user]
...A jar and a the directory a jar is in are not the same things from the class paths perspective.  ./* only picks up .jar files in the current directory. $PWD is the same as ./ and does n...
   Author: Robert Evans, 2013-04-01, 16:00
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