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From Peter Schuller <>
Subject Re: Changing replica placement strategy
Date Mon, 18 Apr 2011 19:51:17 GMT
> If I am currently only running with one data center, can I change the
> replica_placement_strategy from
> org.apache.cassandra.locator.RackUnawareStrategy to
> org.apache.cassandra.locator.NetworkTopologyStrategy without issue?  We
> are planning to add another data center in the near future and want to
> be able to use NetworkTopologyStrategy.  I am pretty sure
> RackUnawareStrategy and NetworkTopologyStrategy pick the same nodes to
> put data on if there is only one DC, so it should be ok right?

As long as you don't specify any rack information (i.e., so that all
are in the same rack) I *believe* this is true, but I don't dare
promise it.

/ Peter Schuller

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