Hello @Sergey_Pronin & @Ege_Gunes (since you commented on that here)
I was wondering if you could explain exactly what connects to the cluster with unsecure options? Is it the pmm-agent & the backup-agent and is there a reason why they can’t use secure options?
Wouldn’t it also be less taxing on the server to keep those connections open without closing and reconnecting them all the time? My guess is that those constant reconnections and the logs they incur probably do not speed up the server! It’s probably minimal of course, but it does also create a lot of bloat which might silence actual important logs.
Thanks!