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Is there an open source software that will easily allow taking say 100 machines (each with Ubuntu Linux installed) and combining them into one BIG cluster?

This way, the user of the cluster will not have to worry about connecting to individual machines etc -- it will just connect to the cluster, run scripts / apps on it etc.

Is it possible to do?

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en.wikipedia.org/wiki/Beowulf_cluster –  Marc B Jul 19 '11 at 22:07
    
oh god the power and space usage.... –  Silverfire Jul 21 '11 at 1:30
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2 Answers

Condor is another program used for resource/job management. It is also capable of consuming idle cycles on computers running some form of Linux that are idle for a time.

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If you're open to CentOS, you can cluster with ricci/lucci that comes with CentOS.

(This comment got deleted for some reason for not answering the original question so I will elaborate)

You are asking about clustering 100 machines, they currently run ubuntu linux. And to EASILY make a big cluster

For a BIG cluster, my response is if you are able to move to CentOS (free) it comes with ricci/luci which is clustering software and you should be able to cluster 100 machines. I'm not sure if ubuntu clustering can handle that. So my first thing would be to ask them if I can migrate over to CentOS.

yum install ricci yum install luci

Start the services and you can add nodes to your cluster just like that very EASILY. Go to http://[node]:8084 of any server with ricci installed and running.

From here you can add all your nodes in - the web gui is pretty easy to manage. The hard part is adding a cluster disk

I didn't answer your specific question about Ubuntu except to say I think if you want easy and your technology is open to a migration that CentOS is free and pretty easy in that respect.

Hope that explains more my answer.

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