* When I say wild imbalance, I do not mean all tokens on 1 node in the cluster, I really should have said slightly imbalanced
On Tue, Aug 5, 2014 at 8:43 AM, Jonathan Haddad <j...@jonhaddad.com> wrote: > 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 -- Jon Haddad http://www.rustyrazorblade.com skype: rustyrazorblade
