Load balancing
Since Cassandra is a distributed database with the ability to add and remove nodes easily, it's important for the client to be able to send requests to new nodes that join the cluster, or to stop sending requests to removed or dead nodes.
Some databases use special middleman processes to broker requests to available nodes, thus relieving the client of the requirement to maintain a list of hosts. Since Cassandra is a peer-to-peer system, with no special nodes or broker processes, the client must be aware of the topology of the cluster.
You should not use a load balancer between the client and Cassandra, as the client handles this via its load balancing policies. Adding a separate load balancer will actually prevent the client from ...
Get Cassandra High Availability now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
