Open Stack

"d.lake at surrey.ac.uk" <d.lake at surrey.ac.uk> writes:

> Hello
>
> I’m trying to rebuild a Devstack system on an identical machine to a working system from August.
>
> Same base OS (Centos 7.5), same simple local.conf.
>
> But this system is failing with Oslo.concurrency not at 2.26.
>
> This is bizarre because when I update Oslo.concurrency using pip, I’m given 2.29.
>
> Yet something in Devstack insists on going back to 2.25.1 despite
> knowing that I need 2.26.

Devstack runs pip using the constraints file to restrict the versions of
packages installed to those known to have worked in CI. When you run pip
by itself, those constraints are not applied and the newer version is
used.

Does the error message tell you which package depends on 2.25.1?

Why do you need 2.26.0?

>
> What is most annoying is that I thought that by keeping all the basic build identical I would save myself the pain that is OpenStack installation.
>
> How do I work around this please?
>
> If I clear out /usr/lib/python2.7/site-packages, this doesn’t seem to help at all.
>
> Thanks
>
> David
>
> Sent from my iPhone

-- 
Doug