Hi Eric. I saw your original post but didn't have anything of value to add.
I've never seen this myself. That said "never seen" not in the sense that
it's impossible, just in the sense that I've never looked for such an issue
and have never noticed such a thing. It does seem unusual however.
Unfortunately you didn't provide detail for speculating further. I'm not
very familiar with Exhibitor (know of it - +cc Jordan in case he has
insights) and without more details such as the version of ZK and in
particular the configs of the 5 servers it's hard to come up with much.
Also, are you able to correlate the outlier to a particular ZK role -
perhaps that's the leader? (although I'm not sure why that would matter...)