One common task for Apache Cassandra DBAs is to scale horizontally or scale up (that is, add more nodes to) a cluster. Usually, this is because the cluster needs to store additional data, or provide additional operational throughput. Oftentimes, large e-commerce retailers will scale up their clusters just prior to the holiday season, as a way to ensure their ability to remain highly available during periods of heavy traffic.
Scaling up
Adding nodes to a cluster
The basic task behind scaling up a cluster is adding a new node. To accomplish this, start with your newly provisioned instance. If you follow good DevOps practices, and can install Apache Cassandra simply by executing your deployment pipeline, then this should be very...