title: Cassandra: decommissioning a seed node
body: <p>Cassandra conceptual questions: I have a 5-node cluster up and running. Now that all nodes are bootstrapped, does the list of seed nodes that each node knows about matter? If I'm planning on decommissioning a seed node, do I need to update other nodes' configurations and remove the to-be-decommissioned node's IP from the seed node list or does it not matter since all nodes are fully joined?</p>