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MapReduce >> mail # user >> Re: Using a hard drive instead of


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Ravi Prakash 2012-10-13, 03:46
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Mark Kerzner 2012-10-14, 04:07
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Using a hard drive instead of
Hi,

Imagine I have a very fast hard drive that I want to use for the NameNode.
That is, I want the NameNode to store its blocks information on this hard
drive instead of in memory.

Why would I do it? Scalability (no federation needed), many files are not a
problem, and warm fail-over is automatic. What would I need to change in
the NameNode to tell it to use the hard drive?

Thank you,
Mark
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Harsh J 2012-10-12, 04:16
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Mark Kerzner 2012-10-12, 04:27
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Gaurav Sharma 2012-10-12, 04:34
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Lance Norskog 2012-10-12, 05:01
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Colin Patrick McCabe 2012-10-17, 22:37
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Michael Segel 2012-10-17, 23:27
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Mark Kerzner 2012-10-17, 22:44
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Colin McCabe 2012-10-17, 23:21