Open Stack

I'm going to start setting up my second Control node. This is
going to be identical to the first (in every detail).

But I started to think about two Keystone (among other) services
writing to the same database, possibly to the same tables etc.

And that worries me..


What's the theory about having multiple controllers?
--
Build a man a fire, and he will be warm for the night.
Set a man on fire and he will be warm for the rest of his life.