Say in Mongo we have one primary and two replica node(simple replica no sharding). Read and write request will be handled only primary node and replica will just backup the data in case of failover.
My understanding/question about replication(not sharding) in Cassandra
Can we have only one node(say Node_1) serving read and write requests while other two simply working as replica nodes(these nodes just takes the replica request from Node_1 , no real time request from user ) like in Mongo considering replication factor as 3 ?
Per my understanding this should not be possible in cassandra, as in cassandra , replica nodes are nodes are equal peers , so it is mandatory that any of three nodes has to serve write and read request.
Is my understanding correct ?