My question, in this scenario where the compute nodes lose connection to the controller primarily the HEAT API?

Scenario diagram:

    world
      |
  Networker
      |
 (switch2)
      |
  Compute
      |                       
   (switch1)------------- Controller

Background:

I've been playing around with heat and instance HA with the new HOT template formatting. I have my generic template here, https://raw.githubusercontent.com/andrewklau/openstack-heat-templates/master/base-instance-iha.yaml (https://raw.githubusercontent.com/and...) it's not properly working yet (validation issues), but the main concept should make sense.

In the case scenario where above (switch1) were to fail and go offline for 30 minutes. If I understand correctly, most services shouldn't get effected but the heat component (primarily the IHA) would get hit pretty hard. Are there any case scenarios regarding this?

Thanks.