Cassandra replicates rows in a column family on to multiple endpoints based on the replication strategy associated to its keyspace. The endpoints which store a row are called replicas or natural endpoints for that row. Number of replicas and their location are determined by replication factor and replication strategy.

How does Cassandra replicate data?

Cassandra stores data replicas on multiple nodes to ensure reliability and fault tolerance. ... A replication factor of one means that there is only one copy of each row in the Cassandra cluster. A replication factor of two means there are two copies of each row, where each copy is on a different node.

What is replication strategy in Cassandra?

A replication strategy determines the nodes where replicas are placed. Cassandra stores replicas on multiple nodes to ensure reliability and fault tolerance. A replication strategy determines the nodes where replicas are placed. The total number of replicas across the cluster is referred to as the replication factor.