DZone Database Zone
High Throughput and Low Latency Master-Slave Replication
There are different kinds of data replication models — mainly, master-slave (Couchbase, MongoDB, Espresso), master-master (BDR for PostgreSQL, GoldenGate for Oracle), and masterless (Dynamo, Cassandra). This article only discusses the master-slave replication in key-value (KV) stores.
In the master-slave replication model, there is one master for a single data partition and one or more replicas, which are essentially slaves and follow the data in the master partition. The client applications send the key-values to the master and subsequently, the key-values are sent over to the replicas from the master.
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