fuel-dev team mailing list archive

[Dmitriy Novakovskiy <dnovakovskiy@xxxxxxxxxxxx>]

Hi Fuelers,

I recently got a question from one of the prospects - what should Fuel user
do if one of the OpenStack controllers fails (completely) and there's a
need to replace it with new box.

My educated guess was:
1. Remove controller from the environment in Fuel UI (*Q1:* is it actually
possible? assuming that server is out and Fuel won't be able to do cleanup)
2. Get new controller discovered
3. Add new controller to the environment in Fuel UI (*Q2:* how does this
happen right now? Does Fuel re-reploy all controllers? Will cloud
experience services downtime? Will DB state be preserved?)

Is it anywhere close to reality? Do we actually test the cases like that?

Thanks,

---
Regards,

*Dmitriy Novakovskiy*
Sales Engineer, Mirantis EMEA

*Skype:* dmitriy.novakovskiy
*Operating from:* Ukraine