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From Alexander Zarochentsev <alexander_zarochent...@xyratex.com>
Subject Hadoop optimization for Lustre FS
Date Wed, 16 May 2012 08:34:28 GMT
Hello,

there is an optimization for Hadoop on Lustre FS, or any 
high-performance distributed filesystem.

The research paper with test results can be found here
http://www.xyratex.com/pdfs/whitepapers/Xyratex_white_paper_MapReduce_1-4.pdf
and a presentation for LUG 2011:
http://www.olcf.ornl.gov/wp-content/events/lug2011/4-12-2011/1100-1130_Nathan_Rutman_MapReduce_Lug_2011.pptx

Basically the optimization is a replacement for http transport in 
shuffle phase by simple linking target file to the source one. I 
attached a draft patch against hadoop-1.0.0 to illustrate the idea.
How to push this patch upstream?

Thanks,
-- 

Alexander "Zam" Zarochentsev
alexander_zarochentsev@xyratex.com


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