If you are using Murmur3 partitioner and do not wish to partake in vnodes you can still calculate inital_tokens.
There is a guide here http://www.datastax.com/docs/1.2/initialize/token_generation#calculating-tokens-for-the-murmur3partitioner Cheers ----------------- Aaron Morton Freelance Cassandra Developer New Zealand @aaronmorton http://www.thelastpickle.com On 2/02/2013, at 9:59 AM, Edward Capriolo <edlinuxg...@gmail.com> wrote: > You do not just want to vnodes without being sure. Some queries are > not optimized for vnodes and issue 128 slices to solve some > secondaryIndexQueries. > > > On Fri, Feb 1, 2013 at 12:55 PM, Víctor Hugo Oliveira Molinar > <vhmoli...@gmail.com> wrote: >> Do not set initial_token when using murmur3partitioner. >> instead, set num_tokens. >> >> For example, u have 3 hosts with the same hardware setup, then, for each one >> set the same num_tokens. >> But now consider adding another better host, this time i'd suggest you to >> set previous num_tokens * 2. >> >> num_tokens: 128 (worse machines) >> num_tokens: 256(twice better machine) >> >> This is the setup of virtual nodes. >> Check current datastax docs for it. >> >> >> On Thu, Jan 31, 2013 at 8:43 PM, Edward Capriolo <edlinuxg...@gmail.com> >> wrote: >>> >>> This is the bad side of changing default. There are going to be a few >>> groups unfortunates. >>> >>> The first group, who only can not setup their cluster, and eventually >>> figure out their tokens. (this thread) >>> The second group, who assume their tokens were correct and run around >>> with an unbalanced cluster thinking the performance sucks. (the >>> threads for the next few months) >>> The third group, who will google "how to balance my ring" and find a >>> page with random partitioner instructions. (the occasional thread for >>> the next N years) >>> The fourth group, because as of now map reduce is highly confused by this. >>> >>> On Thu, Jan 31, 2013 at 4:52 PM, Rob Coli <rc...@palominodb.com> wrote: >>>> On Thu, Jan 31, 2013 at 12:17 PM, Edward Capriolo >>>> <edlinuxg...@gmail.com> wrote: >>>>> Now by default a new partitioner is chosen Murmer3. >>>> >>>> "Now" = as of 1.2, to be unambiguous. >>>> >>>> =Rob >>>> >>>> -- >>>> =Robert Coli >>>> AIM>ALK - rc...@palominodb.com >>>> YAHOO - rcoli.palominob >>>> SKYPE - rcoli_palominodb >> >>
