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From Patricia Gorla <>
Subject Re: Some questions to adding a new datacenter into cassandra cluster.
Date Fri, 02 May 2014 16:41:35 GMT
On Wed, Apr 30, 2014 at 10:21 AM, Arindam Barua <> wrote:

> Since we don’t change the seeds configuration in the yaml files of DC1 and
> DC2, how do DC1 and DC2 know the nodes in the DC3 if they reboot for some
> reason later?

Additional note: you want to have at least one seed node per availability
zone, and 3 seed nodes per DC. If you add a new DC into the cluster, the
safe route would be to update the seed list across all nodes.

Patricia Gorla

Apache Cassandra Consulting <>

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