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From Robert Coli <rc...@eventbrite.com>
Subject Re: Make an existing cluster multi data-center compatible.
Date Tue, 05 Aug 2014 21:41:00 GMT
On Tue, Aug 5, 2014 at 2:27 PM, Rene Kochen <rene.kochen@schange.com> wrote:

> "As long as you correctly configure the new snitch so that the replica
> sets do not change, no, you do not need to repair."
>
> Is the following correct:
>
> The replica sets do not change if you modify the snitch from SimpleSnitch
> to NetworkTopologyStrategy and the topology file puts all nodes in the same
> data-center and rack.
>

Yes, you can use nodetool getendpoints to illustrate this programatically.

1) make a set of keys with a key from each range
2) getendpoints for this set of keys
3) change snitch
4) getendpoints again

=Rob

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