Re: [ovirt-devel] VDSM mom dependancy on RHEL7
On 23/07/14 13:18 +0100, Dan Kenigsberg wrote:
On Wed, Jul 23, 2014 at 07:05:07AM -0400, Martin Polednik wrote:
> ----- Original Message -----
> > From: "Dan Kenigsberg" <danken(a)redhat.com>
> > To: "Martin Polednik" <mpolednik(a)redhat.com>, dcaro(a)redhat.com
> > Cc: devel(a)ovirt.org
> > Sent: Wednesday, July 23, 2014 12:19:42 PM
> > Subject: Re: [ovirt-devel] VDSM mom dependancy on RHEL7
> >
> > On Tue, Jul 22, 2014 at 06:36:10PM -0400, Martin Polednik wrote:
> > > Hi,
> > >
> > > I've gone through installing VDSM on RHEL7 host
> > > (Red Hat Enterprise Linux Server release 7.0 (Maipo)) and encountered
> > > issue with mom:
> > >
> > > Error: Package: mom-0.4.1-2.el6.noarch (ovirt-3.5-epel)
> > > Requires: python(abi) = 2.6
> > > Installed: python-2.7.5-16.el7.x86_64 (@rhel7)
> > > python(abi) = 2.7
> > > python(abi) = 2.7
> > >
> > > Repositories used were master, master-snapshots and 3.5 + dependancies.
> > > Although it is possible to get it working by getting mom source and
> > > rebuilding it on RHEL7, I'd like to know if there is different RHEL7
> > > repo or this is mistake in repos.
> >
> > http://resources.ovirt.org/pub/ovirt-3.5-pre/rpm/el7/ is quite empty,
> > I'm afraid.
>
> The problem actually occurs when getting mom from
> http://resources.ovirt.org/pub/ovirt-master-snapshot/rpm/el7/
mom there
http://resources.ovirt.org/pub/ovirt-master-snapshot/rpm/el7/noarch/mom-0...
is of older version than the one in your ovirt-3.5-epel
(mom-0.4.1-2.el6.noarch). Try disabling ovirt-3.5-epel repo.
Since el6->el7 upgrade should be possible, el7 packages must have a
higher n-v-r than their el6 diblings.
Who is the person that is actually building the mom rpms for the
release? It's actually not me :) I am actually a bit confused about
how to handle this. Since mom is actually an upstream project that is
used by people outside of oVirt releases, I have been maintaining
upstream packages in Fedora/epel. We haven't really encountered a
situation where oVirt needs to ship something different than what is
upstream (but this may come to pass in the future). A couple of
questions...
1) Should we even be building mom in the ovirt repos at all?
2) If we need to ensure a smooth upgrade between el6 and el7, does
this mean that I need to bump the el7 version every time I upgrade the
el6 packages? This seems strange to me. I think the better solution
is to not require a specific version of python (2.6, 2.7, etc) but
just < 3 until we support python3.
3) We should probably make vdsm depend on a specific version of MOM.
That way we can upgrade the fedora package but have an ovirt host stay
on a current stabilized version.
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Adam Litke