Link Details

http://www12.asphost4free.com/foammattresssuper/tempurpedic-foam-mattress.html
tempurpedic foam mattress
http://www12.asphost4free.com/foammattresssuper/double-memory-foam-mattress.html
double memory foam mattress
http://www12.asphost4free.com/foammattresssuper/adjustable-bed-chiropedic-double-foam-mattress-memory.html
table bed chiropedic double foam mattress memory
http://www12.asphost4free.com/foammattresssuper/adjustable-beds-and-memory-foam-mattresses.html
adjustable beds and memory foam mattresses
http://www12.asphost4free.com/foammattresssuper/tempurpedic-memory-foam-mattress.html
tempurpedic memory foam mattress
http://www12.asphost4free.com/foammattresssuper/foam-mattress-topper.html
foam mattress topper
http://www12.asphost4free.com/foammattresssuper/foam-rubber-mattress.html
foam rubber mattress
http://www12.asphost4free.com/foammattresssuper/tempur-pedic-foam-mattress.html
tempur pedic foam mattress
http://www12.asphost4free.com/foammattresssuper/spa-sensations-foam-mattress.html
spa sensations foam mattress
http://www12.asphost4free.com/foammattresssuper/double-topper-memory-foam-mattress.html
double topper memory foam mattress
http://www12.asphost4free.com/foammattresssuper/memory-foam-mattress-uk.html
memory foam mattress uk
http://www12.asphost4free.com/foammattresssuper/3-memory-foam-mattress-topper.html
3 memory foam mattress topper
http://www12.asphost4free.com/foammattresssuper/silent-night-memory-foam-mattress.html
silent night memory foam mattress
http://www12.asphost4free.com/foammattresssuper/air-bed-discount-foam-latex-mattress.html
air bed discount foam latex mattress
http://www12.asphost4free.com/foammattresssuper/memory-foam-mattress-comparison.html
memory foam mattress comparison

I agree, GridGain and Hadoop are very different. That is why I spent time comparing them.

10,000 cores and petabytes aren't just random numbers. They are the scale that Hadoop is currently used in production.
http://developer.yahoo.com/blogs/hadoop/2008/02/yahoo-worlds-largest-production-hadoop.html
And trust me, no tool scales to that level without a lot of work testing at that scale.

All of the comparisons that had been done previously, used very difficult to understand terminology that is specific to GridGain. So, I wanted to specifically look at the map/reduce implementation in each.

GridGain may have other features that are very useful, but it isn't a useful implementation of map/reduce for anything but toy examples. The fact that there is a single reduce and that all of the map outputs have to fit in memory make it a non-starter for almost all of the applications we use map/reduce for.