Cassandra's Cluster Internode Communication
Let's explore how the nodes in a cassandra cluster communicate with each other.
Gossip protocol
The nodes of the cluster communicate with each other periodically via a gossip protocol. This allows the nodes to exchange state and topology information about themselves and other nodes they know about within the cluster. New information is gradually spread throughout the cluster via this process. In this way, nodes are able to keep track of which nodes are responsible for which token ranges, so that they can route requests accordingly.
Nodes can also determine which nodes are healthy (reachable) and which are not. The ...