[gridengine users] Hadoop Integration HOWTO (was: Hadoop Integration - how's it going)
rayson at scalablelogic.com
Fri Jun 1 17:19:31 UTC 2012
I've reviewed the integration, and wrote a short Grid Engine Hadoop HOWTO:
The difference between the 2 methods (original SGE 6.2u5 vs
Prakashan's) is that with Prakashan's approach, Grid Engine is used
for resource allocation, and the Hadoop job scheduler/Job Tracker is
used to handle all the MapReduce operations. A Hadoop cluster is
created on demand with Prakashan's approach, but in the original SGE
6.2u5 method Grid Engine replaces the Hadoop job scheduler.
As standard Grid Engine PEs are used in this new approach, one can
call "qrsh -inherit" and use Grid Engine's method to start Hadoop
services on remote nodes, and thus get full job control, job
accounting, and cleanup at terminate benefits like any other tight PE
On Tue, May 29, 2012 at 10:36 AM, Prakashan Korambath <ppk at ats.ucla.edu> wrote:
> I put my scripts in a tar file and send it to Rayson yesterday so that he
> can put it in a common place to download.
> On 05/29/2012 07:18 AM, Jesse Becker wrote:
>> On Mon, May 28, 2012 at 12:00:24PM -0400, Prakashan
>> Korambath wrote:
>>> This is how we run hadoop using Grid Engine (for that matter
>>> any scheduler with appropriate alteration)
>>> Basically, run either a prolog or call a script inside the
>>> submission command file itself to parse the output of
>>> PE_HOSTFILE to create hadoop *.site.xml, masters and slaves
>>> files at run time. This methodology is suitable for any
>>> scheduler as it is not dependent on them. If there is
>>> interest I can post the prologue script. Thanks.
>> Please do.
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