cassandra – Saved cluster name Test Cluster != configured name

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You can rename the cluster without deleting data by updating it’s name in the system.local table (but you have to do this for each node…)

cqlsh> UPDATE system.local SET cluster_name="test" where key='local';
# flush the sstables to persist the update.
bash $ ./nodetool flush

Finally you need to rename the cluster to the new name in cassandra.yaml (again on each node)

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