I have a three node fdb cluster. Each node runs two fdbserver processes without process class specifying in foundationdb.conf. There are some data in the database.
Now I want to add more three nodes with two processes on each, but I’d like to run only stateless and transaction process classes on the new nodes (one stateless and one transaction per node). Then I want to keep only storage processes on the old three nodes (two storage processes on each node).
I can build a new empty six-node cluster with the desired role distribution from scratch. But I’d like to reconfigure the existing cluster without data loss. Is it possible? If so, where can I find any step-by-step instruction for this kind of reconfiguration?