Hello RDO Team,
I'm still fairly new to OpenStack so this may be because I didn't read the
documentation closely enough before the upgrade, but I ran into an issue
that I was hoping to get some clarification on.
I used this page to perform the upgrade [1].
Everything went smoothly until setting up cells for the first time. I had
not done this in Newton.
I got to step 14: "List registered cells to get their UUIDs:" which worked
great. I had cell0 and cell1 created from previous steps, everything
seemed to be in place.
The next step says: "Pass the UUIDs to the map_instances command to map
instances to cells:" with the following command example:
"# su -s /bin/sh -c "nova-manage cell_v2 map_instances --cell_uuid <cell
UUID>" nova"
I took this to mean run that command for both cell0 and cell1. So I did.
That mapped all my instances to cell0.
I then started seeing errors like this in the logs:
ERROR nova.api.openstack.extensions DriverLoadFailure: Failed to load
transport driver "none": No 'oslo.messaging.drivers' driver found,
looking
for u'none'
After much searching, I found the transport_url for cell0 in the database
was set to "none:///" which is what was causing the error.
I was able to create new instances, but not run any commands at all on
current instances and all new instances were brought up in cell1.
So I moved all current instances to cell1 by manually updating the database
and all the errors went away and everything is running correctly.
So my question is, did I do something else wrong that would cause this not
to work properly or should those instructions be clarified a bit to say map
instances to cell1, not cell0?
In my searching I did find other guides that did all these same things, but
specifically said map instances to cell1.
Thank you,
Peter
[1] -
https://www.rdoproject.org/install/upgrading-rdo-2/