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From Peter Schuller <>
Subject Re: Quorum: killing 1 out of 3 server kills the cluster (?)
Date Fri, 10 Dec 2010 17:25:31 GMT
> If you switch your writes to CL ONE when a failure occurs, you might as well
> use ONE for all writes.  ONE and QUORUM behave the same when all nodes are
> working correctly.

Consistency wise yes, but not durability wise. Writing to QUOROM but
reading at ONE is useful if you want higher durability guarantees, but
is fine with inconsistent reads. In other words, if you want to avoid
loosing data if a node completely blows up and its data becomes
irrevocably lost forever. (The data that would be lost would be data
written at ONE that only reached that node, and no others.)

/ Peter Schuller

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