我需要解决方案
Hi - reading through the most recent docs (7.6 at the time), several HA solutions are described, none though that would allow a straightforward upgrade (even for minor release numbers) without bringing down the master. This seems to imply that any hotfix requires a serious maintenance window, with all NB processes stopped and I'm looking for a more resilient scenario; the most promising one seems to be multi-site single-domain catalog replication (synchronous or not, let's assume there are no performance concerns) - in such a setup would it be safe to assume that one node can be disabled, patched, rebooted, etc and then still communicate properly when brought back online? No version of OS or appliance constraints, whatever will work.