We deployed k8ssandra-operator into our EKS cluster and installed cassandra 4.0.3. We want to upgrade the cassandra version while the system is live. Can you describe the process, point to documentation, or just comment on the right way to do that?
Thanks.
Hi, you just need to change the Cassandra version in your K8ssandraCluster manifest and apply it. The operator will then take care of the rolling upgrade, including the upgradesstables operation.
Hi @alexander .
Is the same applies when upgrading the major version, eg. 4x to 5x?
Yes, same process.
You might want to check that your custom cassandra.yaml settings are still valid, and if not update them as you bump the Cassandra version.