We have i3xlarge instances with data directory in the XFS filesystem that is ephemeral and *hints*, *commit_log* and *saved_caches* in the EBS volume. Whenever AWS is going to retire the instance due to degraded hardware performance is it better:
Option 1) - Nodetool drain - Stop cassandra - Restart the machine from aws-cli to be restored in a different VM from the hypervisor - Start Cassandra with -Dcassandra.replace_address - We lose only the ephemeral but the commit_logs, hints, saved_cache will be there OR Option 2) - Add a new node and wait for the NORMAL status - Decommission the one that is going to be retired - Run cleanup with cstar across the datacenters ? Thanks, Sergio
