CODEWITHSUNDEEP
cassandradatastax-enterprisedatastax
advait
advait

Reputation: 6525

Cassandra: decommissioning a seed node

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?

Upvotes: 4

Views: 1780

Answers (1)

Carlo Bertuccini
Carlo Bertuccini

Reputation: 20021

If you decommission a seed node in a bootstrapped and working ring the cluster will keep working since every node is already up. However the correct procedure before decommissioning a seed node is to choose an existing node as new seed by adding its ip address to other nodes' cassandra.yaml; removing from all cassandra.yaml the old seed address. HTH, Carlo

Upvotes: 6

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