Hi, All, I need to add a Cassandra (running on a three nodes) fresh installed in a datacenter say DC3 to existing Cassandra datacenters say DC1 and DC2.
I read the document about it at http://www.datastax.com/documentation/cassandra/2.0/cassandra/operations/ops_add_dc_to_cluster_t.html But I have several questions: 1. Does the operations in the step 7 (last step) only run on the new datacenter i.e. DC3? Do I need to do something on DC1 and DC2? 2. If we use LOCAL_QUORUM (for read) and EACH_QUORUM (for writing) and the keyspaces/column families in DC1 and DC2 needs to propagate to DC3, do I need to restart Cassandra services on existing DCs i.e. DC1 and DC2? 3. Since we don't change the seeds configuration in the yaml files of DC1 and DC2, how do DC1 and DC2 know the nodes in the DC3 if they reboot for some reason later? Thanks a lot. Boying
