Submitted by brano.kosik@allit.sk on Wed, 06/05/2019 - 03:50
I have 3 Cloudmin hosts (VMMs) with Cloudmin Pro license. I would like to create multi-master configuration like any Cloudmin host can manage any instances in cluster. So when I connect to any Cloudmin host I would see all information about any KVM host and KVM instance.
I'm looking for it as a redundant system also, e.g. if master KVM host will be down I will can manage all instances from any other host.
Status:
Active
Comments
Submitted by andreychek on Wed, 06/05/2019 - 08:42 Comment #1
Howdy -- thanks for contacting us!
Cloudmin does support having more than one Master host.
That process is described here in the Cloudmin replication documentation:
https://www.virtualmin.com/documentation/cloudmin/repl
Will that do what you're after?
Submitted by JamieCameron on Wed, 06/05/2019 - 22:25 Comment #2
Note though that Cloudmin doesn't support multi-master - only a single master, and multiple replicas that could be promoted to master if required.
Submitted by brano.kosik@allit.sk on Thu, 06/06/2019 - 03:17 Comment #3
Thank you for answers. What can I do when the master goes down? According to replication docs I need to manually change slave to master, but I can't use Cloudmin failover system to auto start VMs, because master is down, which is responsible for that.
Now I can use 3rd party software only, e.g. Peacemaker/Corosync to run Cloudmin bash commands to do it automatically. But it's so complicated :-(
PS: I'm using DRBD storage replication with Cluster LVM, so all VMs' virtual drives are on both hosts.