Hi, Once the client is connected, it will automatically connect to many nodes in the cluster. Therefore once the app is running the amount of contact points doesn’t matter and if you have consistency level < ALL (or QUORUM where replication factor is <= 2), your app should tolerate rolling restart ok.
That being said, you should have more than one contact point because if you restart your application and the node indicated in contact point happens to be down, the application cannot connect to cluster and fails. Having two contact points is a good start. Cheers, Hannu > On 24 Oct 2016, at 15:04, Andreas Fritzler <andreas.fritz...@gmail.com> wrote: > > Hi, > > I was wondering if it is enough to set a list of contact points via: > > Cluster.builder().addContactPoint("host1").addContactPoint("host2")...; > to survive a cluster rolling while inserting/reading from the cluster. > > Regards, > Andreas