On Wed, Jul 01, 2020 at 11:10:23AM +0200, zimoun wrote:
> Hi Pjotr,
> 
> Thank you for sharing your plans.
> 
> On Tue, 30 Jun 2020 at 23:57, Pjotr Prins <pjotr.public12@thebird.nl> wrote:
> 
> > GenNetwork1 depends on Python 2.4(!) with modules that have not been
> > updated this century, and an older version of Apache with mod_python,
> > amongst other things. We would like to use the guix time-machine
> > feature to run older versions on demand in containers, also for the
> > recent GeneNetwork2 version which runs on a modern Guix stack. When we
> > get it to work I would like to push the older packages in Guix-Past.
> 
> I guess that the recent commit [1] by Efraim is part of this effort. :-)

Part of the effort :) I have a bunch more older packages that I'll
probably push to guix-past as time goes on. Right now I have a
no-longer-working octave-3.4.3 with some deps, apache-2.2 and possibly
php-5.6. They're possibly ready to push as-is, but I want to make sure
they actually work for some task before adding them.

> 
> By container, what do you have in mind:
>     guix time-machine --channels=file.scm \
> 
>  -- environment --container
> or 
>  -- pack -f 
> or
>  -- system *-image
> 
> ?

I think we're looking at 'guix system container' so it can be a
"standard" guix service using them (as much as custom guix services are
standard).

> 
> 1: https://gitlab.inria.fr/guix-hpc/guix-past/-/commit/f9fe4d8ac2706834fcff477db8f5421de537d78e
> 
> 
> > Note that GeneNetwork requires a largisch MySQL/MariaDB (170GB)
> > which is also a snapshot in time. We have 5+ snapshots of that
> > database that go with 5+ versions of the code. We want to run them all
> > under Guix so we no longer have to care about the underlying Linux
> > distro.
> 
> I agree that Guix does not have (yet!) good management of large data
> set.  The /gnu/store is not designed for that, if I have correctly
> understood.  Even we have already discussed Content-Addressable Storage
> (CAS) on gwl-devel@gnu.org, AFAIR, we have not ended up with a good
> plan.  Well, it will not be fixed on Friday. :-)
> 
> But for sure, it is something to keep in mind.
> 
> 
> So, see you on Friday. :-)
> 
> Cheers,
> simon
> 

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