DatacenterShardSnitch in 0.7 allows something like this: # DatacenterShardStrategy is a generalization of RackAwareStrategy. # For each datacenter, you can specify (in `datacenter.properties`) # how many replicas you want on a per-keyspace basis. Replicas are # placed on different racks within each DC, if possible.
(DSS is present in 0.6 but incomplete, which is why it is not documented there.) On Mon, May 24, 2010 at 7:26 PM, Mishail <mishail.mish...@gmail.com> wrote: > Greetings, > > Is it possible to spread the particular keyspace only to the part of the > ring? > > For example: > > Node | Keyspaces > -------------------- > node1 | KS1 > node2 | KS2 > node3 | KS1, KS2 > > Each KeySpace has ReplicationFactor == 2, so, node3 would store data > from all keyspaces. > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
