This is incorrect. Network Topology w/ Vnodes will be fine, assuming you've got RF= # of racks. For each token, replicas are chosen based on the strategy. Essentially, you could have a wild imbalance in token ownership, but it wouldn't matter because the replicas would be distributed across the rest of the machines.
http://www.datastax.com/documentation/cassandra/2.0/cassandra/architecture/architectureDataDistributeReplication_c.html On Tue, Aug 5, 2014 at 8:19 AM, DE VITO Dominique <dominique.dev...@thalesgroup.com> wrote: > Hi, > > > > My understanding is that NetworkTopologyStrategy does NOT play well with > vnodes, due to: > > · Vnode => tokens are (usually) randomly generated (AFAIK) > > · NetworkTopologyStrategy => required carefully choosen tokens for > all nodes in order to not to get a VERY unbalanced ring like in > https://issues.apache.org/jira/browse/CASSANDRA-3810 > > > > When playing with vnodes, is the recommendation to define one rack for the > entire cluster ? > > > > Thanks. > > > > Regards, > > Dominique > > > > -- Jon Haddad http://www.rustyrazorblade.com skype: rustyrazorblade
