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Message Posted: Fri, 02 Nov 2012 @ 17:32:24 GMT


     
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Subj:   Re: What happens when a new node is added
 
From:   Anomy Anom

< -- Anonymously Posted: Friday, November 02, 2012 08:49 -- >

Redistribution of a share of the data to the new AMPs happens automatically, as part of the "reconfig" process to add the new node.

A new hash map is created, such that the appropriate number of hash buckets are taken from each old AMP and distributed across the new AMPs. Only rows in these reassigned hash buckets have to be redistributed.



     
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