actually we are using percona-ctradb-cluster 5.7 with 5 nodes on Ubuntu 18.04 LTS.
Now we want to use Percona-xtradb-cluster 8.0.
I got the idea to set up a new cluster with 5 nodes and Ubuntu 20.04 and relate the data from the “old” cluster to the new one. Possibly syncronisation too?
Is that as far as possible? How could that then be implemented? Which settings have to be set for this?
What would be the best course of action for this?
Thanks for your help and best regards