I’m new to the forums but I wanted to see if anyone could help me out. Right now I have a cluster 4 nodes running on version 3.0.1. We are in the process of trying to upgrade to 4.0.0 but we want to try it out on a single node first before making the transition to upgrading all 4.
I’ve tested this out locally where I was able to add a node that is running on 3.0.1 and one node is running on 4.0.0 in a cluster and all seems to be fine. My concern is that there are potentially some known issues or caveats to doing this approach that I don’t know about.
Has anyone else taken this approach to doing an upgrade before with these particular versions or could you think of any potential issues we may run into or things to look out for?
- Michael F