MAAS 3.6 Multiple Region Controller (conflicts between 2 controllers)

Users
1

Hi there,

I have a 2 region and 2 rack controller deployment with a seperate PSQL DB with HA proxy for the 2 region controllers. They were working great until I did the following.

TLDR: (deleted one region controller, created a 2nd one from the 1st, and now in the MAAS UI, it’s switching between both region controllers and only showing one of them at a time in the UI)

Steps to reproduce:
I was doing apt update/install on the 2 region controllers, and one of them failed, so i deleted it and copied over the primary one, booted it up and went in to change it’s IP.

then realized that the machine-id was the same, deleted that, regenerated it, and from then on, it keeps switching between the 2 region controllers.

2

Yeah, that seems to be a good way to mess up your installation

3

I also noticed in the Region Controller Install, it tells you to copy the regiond.conf over to the 2nd one, and use that file.

Inside that file is a maas_url field, that IP points to the original RegionD, do i need to change it to match the static ip?

4

It must match the IP of the local machine that is hosting MAAS

5

Is there a PSQL command to remove both Region Controllers (since it’s hidden from the UI) so that they can repopulate themselves after connecting to PSQL DB?

6

It would be much easier if you could start from scratch with a clean environment. It’s hard to say what you might have broken with these misconfigurations.