Which groupcommunication protocol do you use?(Which hedera implementation)
Please post your hedera configuration.
It might be possible, that you are using a configuration, which needs to
multicast. In some environments, multicasting is disabled, so the machines
won't be able to find each other.

Kind regards,

Malte


> I would like to have two controllers, on different machines, hosting a
> single virtual database. So I've set up the two controllers, they are
> both hosting a virtual database called MyDB with the same settings, but
> they aren't "joined" - they don't know about each other.
>
> In other words, "show controllers" run on one of the controller machines
> gives:
>
> myDB(admin) > show controllers
> myDB is hosted by 1 controller(s):
>         192.168.0.126:1090
>
> and when I run that command on the other controller machine I get:
>
> myDB(admin) > show controllers
> myDB is hosted by 1 controller(s):
>         192.168.0.128:1090
>
> What is the glue that tells them they're both hosting the same virtual
> database?
> The usual ports (25322, 1090) are open on both machines, so I don't
> think it's a firewalling issue.
> I think I saw something in the documents about there being a network
> broadcast so that controllers could find each other, but can't locate
> that now.
>
> thanks,
> Alex
>
>
>
>
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