I was misunderstood this http://www.datastax.com/dev/blog/virtual-nodes-in-cassandra-1-2 , especially "If you want to get started with vnodes on a fresh cluster, however, that is fairly straightforward. Just don’t set the initial_token parameter in yourconf/cassandra.yaml and instead enable the num_tokens parameter. A good default value for this is 256"
Also I couldn't find document about set multiple tokens for cassandra.inital_token Anyway, I just tested, it does work to set comma separated list of tokens. Thanks, Zhong On Jan 29, 2013, at 3:06 AM, aaron morton wrote: >> After I searched some document on Datastax website and some old ticket, >> seems that it works for random partitioner only, and leaves order preserved >> partitioner out of the luck. > Links ? > >> or allow add Virtual Nodes manually? > If not looked into it but there is a cassandra.inital_token startup param > that takes a comma separated list of tokens for the node. > > There also appears to be support for the ordered partitions to generate > random tokens. > > But you would still have the problem of having to balance your row keys > around the token space. > > Cheers > > ----------------- > Aaron Morton > Freelance Cassandra Developer > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 29/01/2013, at 10:31 AM, Zhong Li <z...@voxeo.com> wrote: > >> Hi All, >> >> Virtual Nodes is great feature. After I searched some document on Datastax >> website and some old ticket, seems that it works for random partitioner >> only, and leaves order preserved partitioner out of the luck. I may >> misunderstand, please correct me. if it doesn't love order preserved >> partitioner, would be possible to add support multiple initial_token(s) for >> order preserved partitioner or allow add Virtual Nodes manually? >> >> Thanks, >> >> Zhong >
