On 22 Apr 2013, at 16:46, Mircea Markus <[email protected]> wrote:

> would the read only partition be wiped out and repopulated during merge? 

Naively, yes.  But as Dan pointed out, if a key K only exists in the minor 
partition (primary and backups), then just wiping the minor partition nodes 
will result in data loss.  

A more sophisticated algorithm would just wipe keys in the minor partition that 
also exist in the major partition.

An *even* more sophisticated algorithm would only wipe keys in the minor 
partition that also exist in the major partition, that have changed since the 
partition occurred.  Hence the vector clocks.

- M

--
Manik Surtani
[email protected]
twitter.com/maniksurtani

Platform Architect, JBoss Data Grid
http://red.ht/data-grid


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