Yes my bad. http://wiki.apache.org/cassandra/Operations#Token_selection
Thanks ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 16/09/2011, at 6:50 AM, Anand Somani wrote: > You are right, good catch, thanks! > > On Thu, Sep 15, 2011 at 8:28 AM, Konstantin Naryshkin <konstant...@a-bb.net> > wrote: > Wait, his nodes are going SC, SC, AT, AT. Shouldn't they go SC, AT, SC, AT? > By which I mean that if he adds another node to the ring (or lowers the > replication factor), he will have a node that is under-utilized. The rings in > his data centers have the tokens: > SC: 0, 1 > AT: 85070591730234615865843651857942052864, > 85070591730234615865843651857942052865 > > They should be: > SC: 0, 85070591730234615865843651857942052864 > AT: 1, 85070591730234615865843651857942052865 > > Or did I forget/misread something? > > ----- Original Message ----- > From: "aaron morton" <aa...@thelastpickle.com> > To: user@cassandra.apache.org > Sent: Tuesday, September 13, 2011 6:19:16 PM > Subject: Re: Configuring multi DC cluster > > Looks good to me. Last time I checked the Partitioner did not take the DC > into consideration https://issues.apache.org/jira/browse/CASSANDRA-3047 > > > Good luck. > > > > > > > > ----------------- > Aaron Morton > Freelance Cassandra Developer > @aaronmorton > http://www.thelastpickle.com > > > On 14/09/2011, at 8:41 AM, Anand Somani wrote: > > > Hi, > > Just trying to setup a cluster of 4 nodes for multiDC scenario - with 2 nodes > in each DC. This is all on the same box just for testing the configuration > aspect. I have configured things as > > • PropertyFile > > > • 127.0.0.4=SC:rack1 127.0.0.5=SC:rack2 127.0.0.6=AT:rack1 > 127.0.0.7=AT:rack2 # default for unknown nodes default=SC:rack1 > • > Setup initial tokens as - advised • configured keyspace with SC:2, AT:2 > • ring looks like > > > • Address Status State Load Owns Token > 85070591730234615865843651857942052865 127.0.0.4 Up Normal 464.98 KB 50.00% 0 > 127.0.0.5 Up Normal 464.98 KB 0.00% 1 127.0.0.6 Up Normal 464.99 KB 50.00% > 85070591730234615865843651857942052864 127.0.0.7 Up Normal 464.99 KB 0.00% > 85070591730234615865843651857942052865 > > Is that what I should expect the ring to look like? Is there anything else I > should be testing/validating to make sure that things are configured > correctly for NTS? > > Thanks > Anand > >
