I have a 3 site, 6 peer (2 in each) environment which I want to reduce to a 2 site, 4 peer environment due to my company needing to exit a datacentre.
I know I'm going to need to update Site Replication Factor, Site Search Factor, and available_sites in server.conf on my cluster master, and also offline --enforce-counts on my peers, but I do not know the right order to do this.
Do I tell my Cluster Master I'm now running in 2 sites whilst leaving all peers up across 3 sites THEN run offline --enforce-counts on the exiting peers
- OR -
Do I run offline --enforce-counts on my exiting peers and then go and reduce my CMs sites afterwards?
I anticipate either
- the CM getting upset about failing to meet SSF/SRF if I exit the peers first, or
- the CM getting confused by additional, unexpected peers talking to it if i reduce the CM's notion of sites first.