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From Jeff LI <uniquej...@gmail.com>
Subject Host NameNode, DataNode, JobTracker or TaskTracker on the same machine
Date Thu, 14 Feb 2013 17:10:52 GMT
Hello,

Is there a good reason that we should not host NameNode, DataNode,
JobTracker or TaskTracker services on the same machine?

Not doing so is suggested here http://wiki.apache.org/hadoop/NameNode, but
I'd like to know the reasoning of this.

Thanks

Cheers

Jeff

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