Determines the location of nodes by rack and datacenter.
This snitch determines proximity as determined by rack and datacenter. It uses the network details located in the cassandra-topology.properties file. When using this snitch, you can define your datacenter names to be whatever you want. Make sure that the datacenter names correlate to the name of your datacenters in the keyspace definition. Every node in the cluster should be described in the cassandra-topology.properties file, and this file should be exactly the same on every node in the cluster.
# datacenter One 22.214.171.124=DC1:RAC1 126.96.36.199=DC1:RAC1 188.8.131.52=DC1:RAC1 184.108.40.206=DC1:RAC2 220.127.116.11=DC1:RAC2 18.104.22.168=DC1:RAC2 # datacenter Two 22.214.171.124=DC2:RAC1 126.96.36.199=DC2:RAC1 188.8.131.52=DC2:RAC1 184.108.40.206=DC2:RAC2 220.127.116.11=DC2:RAC2 18.104.22.168=DC2:RAC2 # Analytics Replication Group 22.214.171.124=DC3:RAC1 126.96.36.199=DC3:RAC1 188.8.131.52=DC3:RAC1 # default for unknown nodes default =DC3:RAC1