I am new to Cassandra and have configured cassandra cluster as multiple aws data center. I have 3 replicat in eu-central-1 and 3 replicat in eu-west-1. I have created keyspace from eu-central-1 seed as following: CREATE KEYSPACE my_test WITH REPLICATION = {'class':'NetworkTopologyStrategy', 'eu-west-1':'3', 'eu-central-1':'3'}; after that I have created several tables under this keyspace. Those keyspace and tables didn't replicated to the eu-west-1 3 replicat, should those keyspace and the tables be replicated to eu-west-1 seeds automatically ? if yes , what's wrong with my configurations.