Why is the single broker instance not fault tolerant?

[c0desurfer]

Hello Jeremy,

so I just wanted to make sure I understand this correctly. I can't just scale up the single instance broker pod (like in AMQ 6.3) to make it highly available in OpenShift? I need to use a master/slave configuration in which the slave is doing nothing? Isn't that a waste of resources?

According to ActiveMQ documentation it's possible to have a backup/slave (they call it colocated backup servers) node that is live at the same time. So I guess it would be possible to get that in OpenShift right?

Kind regards
Maciej