In order to add a node to a Cassandra cluster, you should consider the following configuration options in the Cassandra.yaml file:
auto_bootstrap: Set this configuration option totrueso that a newly joining node can collect data from other nodes.listen_address: Set this to the appropriate IP address of the node.endpoint_snitch: Ensure that the new node is using the same snitch as that being used by the other nodes.seed_provider: This lists the nodes that are in the seed node list in the existing cluster. Since this new node is bootstrapping, it can't be in the seed node list right now.cluster_name: Ensure that the cluster name is the same as that of the other nodes in the cluster.
In the Cassandra-rackdc.properties file, update the correct datacentre and rack information for the new node. After ensuring that all configurations are good, start Cassandra on this new node. Once the new node is up and running, execute the nodetool cleanup command on all nodes...