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The moose likes Hadoop and the fly likes Hadoop  vs  simple  cluster Big Moose Saloon
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JavaRanch » Java Forums » Databases » Hadoop
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Hadoop vs simple cluster

Camilo Cruz
Greenhorn

Joined: Dec 24, 2008
Posts: 18
Hello Chuck Lam

im very newbie about distribute computing and have much question

Handopp Hadoop is a software method for clustering?
whats the difference with other commercial products?

could i horizontally-scaling jee applications using handopp Hadoop?

Thank you

SCJP
Tibi Kiss
Ranch Hand

Joined: Jun 11, 2009
Posts: 47
i don't think so that Hadoop would be a clustering framework for J2EE without redesigning the architecture of the application.
Chuck Lam
author
Greenhorn

Joined: Aug 09, 2010
Posts: 12
Yes, you have to rewrite your program to make it work over a cluster (distributed computing). Hadoop is a framework that makes the rewriting easier.

In my book, I gave an example of writing a word counting program. Writing such a program to run on a single machine is easy. Writing it to run on a cluster of machines introduces a lot of complexity. The Hadoop framework eliminates much of that complexity, but the program will have to be architected differently.
 
Consider Paul's rocket mass heater.
 
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