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From Ran Tavory <ran...@gmail.com>
Subject Re: Taking down a node in a 3-node cluster, RF=2
Date Sun, 28 Nov 2010 14:42:25 GMT
to me it makes sense that if hinted handoff is off then cassandra cannot
satisfy 2 out of every 3rd writes writes when one of the nodes is down since
this node is the designated node of 2/3 writes.
But I don't remember reading this somewhere. Does hinted handoff affect
David's situation?
(David, did you disable HH in your storage-config?
<HintedHandoffEnabled>false</HintedHandoffEnabled>)

On Sun, Nov 28, 2010 at 4:32 PM, David Boxenhorn <david@lookin2.com> wrote:

> For the vast majority of my data usage eventual consistency is fine (i.e.
> CL=ONE) but I have a small amount of critical data for which I read and
> write using CL=QUORUM.
>
> If I have a cluster with 3 nodes and RF=2, and CL=QUORUM does that mean
> that a value can be read from or written to any 2 nodes, or does it have to
> be the particular 2 nodes that store the data? If it is the particular 2
> nodes that store the data, that means that I can't even take down one node,
> since it will be the mandatory 2nd node for 1/3 of my data...
>



-- 
/Ran

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