RE: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-06 Thread DE VITO Dominique
...@gmail.com] Envoyé : mardi 5 août 2014 20:07 À : user@cassandra.apache.org Objet : RE: vnode and NetworkTopologyStrategy: not playing well together ? The discussion about racks NTS is also mentioned in this recent article : planetcassandra.org/multi-data-center-replication-in-nosql-databases

Re: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-05 Thread Jonathan Haddad
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

Re: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-05 Thread Jonathan Haddad
* 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

RE: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-05 Thread DE VITO Dominique
d'origine- De : jonathan.had...@gmail.com [mailto:jonathan.had...@gmail.com] De la part de Jonathan Haddad Envoyé : mardi 5 août 2014 17:43 À : user@cassandra.apache.org Objet : Re: vnode and NetworkTopologyStrategy: not playing well together ? This is incorrect. Network Topology w/ Vnodes

Re: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-05 Thread Jeremy Jongsma
la part de Jonathan Haddad Envoyé : mardi 5 août 2014 17:43 À : user@cassandra.apache.org Objet : Re: vnode and NetworkTopologyStrategy: not playing well together ? This is incorrect. Network Topology w/ Vnodes will be fine, assuming you've got RF= # of racks. For each token, replicas

Re: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-05 Thread Jonathan Haddad
août 2014 17:43 À : user@cassandra.apache.org Objet : Re: vnode and NetworkTopologyStrategy: not playing well together ? 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

RE: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-05 Thread DE VITO Dominique
...@gmail.com [mailto:jonathan.had...@gmail.com] De la part de Jonathan Haddad Envoyé : mardi 5 août 2014 18:04 À : user@cassandra.apache.org Objet : Re: vnode and NetworkTopologyStrategy: not playing well together ? Yes, if you have only 1 machine in a rack then your cluster will be imbalanced. You're

RE: vnode and NetworkTopologyStrategy: not playing well together ?

2014-08-05 Thread DuyHai Doan
[mailto:jonathan.had...@gmail.com] De la part de Jonathan Haddad Envoyé : mardi 5 août 2014 18:04 À : user@cassandra.apache.org Objet : Re: vnode and NetworkTopologyStrategy: not playing well together ? Yes, if you have only 1 machine in a rack then your cluster will be imbalanced. You're going