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Re: no output written to HDFS - Hadoop - [mail # user]
...Hi,  Do both input files contain data that needs to be processed by the mapper in the same fashion ? In which case, you could just put the input files under a directory in HDFS and prov...
   Author: Hemanth Yamijala, 2012-08-31, 04:46
[HADOOP-5726] Remove pre-emption from the capacity scheduler code base - Hadoop - [issue]
...In an effort to simplify the code base, we would like to remove the pre-emption related code in the capacity scheduler. We would reintroduce this (possibly with some revisions to the origina...
http://issues.apache.org/jira/browse/HADOOP-5726    Author: Hemanth Yamijala, 2012-06-22, 17:48
Re: HDFS disk consumption. - Hadoop - [mail # user]
...Hi,  On Wed, Dec 29, 2010 at 5:51 AM, Jane Chen  wrote  I verify that?  I have a pseudo cluster running 0.21.0.  It seems that  the hdfs disk consumption triples the amou...
   Author: Hemanth Yamijala, 2010-12-29, 04:43
Re: Topology : Script Based Mapping - Hadoop - [mail # user]
...Hi,  On Tue, Dec 28, 2010 at 6:03 PM, Rajgopal Vaithiyanathan  wrote:  I am not sure if $HOME gets expanded automatically. Can you try it as ${HOME}, or in the worst case spec...
   Author: Hemanth Yamijala, 2010-12-29, 04:36
Re: Question from a Desperate Java Newbie - Hadoop - [mail # user]
...Not exactly what you may want - but could you try using a HTTP client in Java ? Some of them have the ability to automatically follow redirects, manage cookies etc.  Thanks hemanth &nbs...
   Author: Hemanth Yamijala, 2010-12-10, 02:33
Re: Hadoop command line arguments - Hadoop - [mail # user]
...Hi,  On Sat, Dec 4, 2010 at 4:50 AM, yogeshv  wrote:  'hadoop' in the above line is a shell script that's present in the hadoop-common/bin location. If you see that script, yo...
   Author: Hemanth Yamijala, 2010-12-04, 07:32
Re: delay the execution of reducers - Hadoop - [mail # user]
...Hi, e in  Ideally, if you knew which processes need to read the configuration value, you can set it in the configuration files on nodes running those processes. For instance, you knew a...
   Author: Hemanth Yamijala, 2010-12-02, 09:29
Re: Configuring Heap Size for Name Node - Hadoop - [mail # dev]
...Hi,  On Wed, Dec 1, 2010 at 1:38 AM, Dave Shine  wrote:  without changing the heap size for the data nodes, job tracker, and task t rackers?  Which version are you using....
   Author: Hemanth Yamijala, 2010-12-01, 02:39
Re: Memory config for Hadoop cluster - Hadoop - [mail # user]
...Amandeep,  On Fri, Nov 5, 2010 at 11:54 PM, Amandeep Khurana  wrote:  It seems like you want to enable task memory monitoring and kill tasks that are taking up more than what ...
   Author: Hemanth Yamijala, 2010-11-07, 09:19
Re: mapper and reducer scheduling - Hadoop - [mail # dev]
...Hi,  On Mon, Nov 1, 2010 at 9:13 AM, He Chen  wrote:  This is true irrespective of the scheduler in use. Other schedulers currently add a layer to decide which job to pick up ...
   Author: Hemanth Yamijala, 2010-11-01, 04:01
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