On Fri, 2023-06-09 at 16:18 +0200, Peter Georg wrote:
> 
> 
> On 09/06/2023 15.17, Niels de Vos wrote:
> > On Fri, 2023-06-09 at 13:03 +0200, lejeczek via CentOS-devel wrote:
> > > 
> > > 
> > > On 01/06/2023 14:46, Niels de Vos wrote:
> > > > On Thu, 2023-06-01 at 09:51 +0200, lejeczek via CentOS-devel
> > > > wrote:
> > > > > 
> > > > > On 31/05/2023 20:30, Troy Dawson wrote:
> > > > > > Just to be clear, this is the glusterfs from the glusterfs
> > > > > > SIG,
> > > > > > not the gluster that comes standard with CentOS Stream 9.
> > > > > > 
> > > > > > 
> > > > > > On Wed, May 31, 2023 at 12:30 AM lejeczek via CentOS-devel
> > > > > > <centos-de...@centos.org> wrote:
> > > > > > 
> > > > > >       Hi guys.
> > > > > >       Just to let you know that with GlusterFS & latest
> > > > > > qemu
> > > > > >       updates - on Centos 9 I'd image most will have these
> > > > > > -
> > > > > >       there are conflicts which brake update:
> > > > > > 
> > > > > >       -> $ dnf update
> > > > > > 
> > > > > >       Error:
> > > > > >        Problem 1: package qemu-img-17:8.0.0-4.el9.x86_64
> > > > > >       from appstream requires liburing.so.1()(64bit), but
> > > > > >       none of the providers can be installed
> > > > > >         - package qemu-img-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires
> > > > > > liburing.so.1(LIBURING_0.1)(64bit),
> > > > > >       but none of the providers can be installed
> > > > > >         - package qemu-img-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires
> > > > > > liburing.so.1(LIBURING_0.2)(64bit),
> > > > > >       but none of the providers can be installed
> > > > > >         - cannot install both liburing-0.7-7.el9.x86_64
> > > > > > from
> > > > > >       appstream and liburing-2.0-1.el9s.x86_64 from @System
> > > > > >         - cannot install the best update candidate for
> > > > > >       package qemu-img-17:8.0.0-2.el9.x86_64
> > > > > >         - cannot install the best update candidate for
> > > > > >       package liburing-2.0-1.el9s.x86_64
> > > > > >        Problem 2: package
> > > > > >       glusterfs-server-11.0-1.el9s.x86_64 from @System
> > > > > >       requires liburing.so.2()(64bit), but none of the
> > > > > >       providers can be installed
> > > > > >         - package glusterfs-server-11.0-1.el9s.x86_64 from
> > > > > >       @System requires liburing.so.2(LIBURING_2.0)(64bit),
> > > > > >       but none of the providers can be installed
> > > > > >         - cannot install both liburing-0.7-7.el9.x86_64
> > > > > > from
> > > > > >       appstream and liburing-2.0-1.el9s.x86_64 from @System
> > > > > >         - cannot install both liburing-0.7-7.el9.x86_64
> > > > > > from
> > > > > >       appstream and liburing-2.0-1.el9s.x86_64 from
> > > > > >       centos-gluster11
> > > > > >         - cannot install both liburing-0.7-7.el9.x86_64
> > > > > > from
> > > > > >       appstream and liburing-2.0-1.el9s.x86_64 from
> > > > > >       centos-gluster11-test
> > > > > >         - package qemu-kvm-core-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires liburing.so.1()(64bit), but none
> > > > > > of
> > > > > >       the providers can be installed
> > > > > >         - package qemu-kvm-core-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires
> > > > > > liburing.so.1(LIBURING_0.1)(64bit),
> > > > > >       but none of the providers can be installed
> > > > > >         - package qemu-kvm-core-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires
> > > > > > liburing.so.1(LIBURING_0.2)(64bit),
> > > > > >       but none of the providers can be installed
> > > > > >         - cannot install the best update candidate for
> > > > > >       package qemu-kvm-core-17:8.0.0-2.el9.x86_64
> > > > > >         - cannot install the best update candidate for
> > > > > >       package glusterfs-server-11.0-1.el9s.x86_64
> > > > > >        Problem 3: problem with installed package
> > > > > >       liburing-2.0-1.el9s.x86_64
> > > > > >         - cannot install both liburing-0.7-7.el9.x86_64
> > > > > > from
> > > > > >       appstream and liburing-2.0-1.el9s.x86_64 from @System
> > > > > >         - cannot install both liburing-0.7-7.el9.x86_64
> > > > > > from
> > > > > >       appstream and liburing-2.0-1.el9s.x86_64 from
> > > > > >       centos-gluster11
> > > > > >         - cannot install both liburing-0.7-7.el9.x86_64
> > > > > > from
> > > > > >       appstream and liburing-2.0-1.el9s.x86_64 from
> > > > > >       centos-gluster11-test
> > > > > >         - package qemu-kvm-core-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires liburing.so.1()(64bit), but none
> > > > > > of
> > > > > >       the providers can be installed
> > > > > >         - package qemu-kvm-core-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires
> > > > > > liburing.so.1(LIBURING_0.1)(64bit),
> > > > > >       but none of the providers can be installed
> > > > > >         - package qemu-kvm-core-17:8.0.0-4.el9.x86_64 from
> > > > > >       appstream requires
> > > > > > liburing.so.1(LIBURING_0.2)(64bit),
> > > > > >       but none of the providers can be installed
> > > > > >         - problem with installed package
> > > > > >       qemu-kvm-core-17:8.0.0-2.el9.x86_64
> > > > > >         - package qemu-kvm-core-17:8.0.0-2.el9.x86_64 from
> > > > > >       @System requires qemu-kvm-common = 17:8.0.0-2.el9,
> > > > > > but
> > > > > >       none of the providers can be installed
> > > > > >         - package qemu-kvm-core-17:8.0.0-2.el9.x86_64 from
> > > > > >       appstream requires qemu-kvm-common = 17:8.0.0-2.el9,
> > > > > >       but none of the providers can be installed
> > > > > >         - cannot install both
> > > > > >       qemu-kvm-common-17:8.0.0-4.el9.x86_64 from appstream
> > > > > >       and qemu-kvm-common-17:8.0.0-2.el9.x86_64 from
> > > > > > @System
> > > > > >         - cannot install both
> > > > > >       qemu-kvm-common-17:8.0.0-4.el9.x86_64 from appstream
> > > > > >       and qemu-kvm-common-17:8.0.0-2.el9.x86_64 from
> > > > > > appstream
> > > > > >         - cannot install the best update candidate for
> > > > > >       package qemu-kvm-common-17:8.0.0-2.el9.x86_64
> > > > > >       (try to add '--allowerasing' to command line to
> > > > > >       replace conflicting packages or '--skip-broken' to
> > > > > >       skip uninstallable packages or '--nobest' to use not
> > > > > >       only best candidate packages)
> > > > > > 
> > > > > >       many thanks, L.
> > > > > >       _______________________________________________
> > > > > > 
> > > > > Yes, from SIG.
> > > > > centos-release-gluster11-1.0-1.el9s.noarch
> > > > liburing.so.1(LIBURING_0.1)(64bit) - needed by qemu
> > > > liburing.so.2(LIBURING_2.0)(64bit) - needed by glusterfs
> > > > 
> > > > I guess liburing was not available in earlier versions, and was
> > > > therefore added to the gluster repository. We'll have to remove
> > > > the
> > > > gluster version and rebuild the package against the liburing
> > > > version
> > > > that is now part of CentOS Stream 9.
> > > > 
> > > > The gluster repository seems to have a newer liburing version,
> > > > which
> > > > makes it difficult to downgrade to the appstream version for
> > > > users
> > > > that
> > > > have the glusterfs-server package installed. Users in this
> > > > situation
> > > > may need to add --allowerasing while updating to the a rebuild
> > > > of
> > > > the
> > > > glusterfs package.
> > > > 
> > > > Does anyone have an idea on how this can be handled best?
> > > > 
> > > > Thanks,
> > > > Niels
> > > > 
> > > Do you/devel guys (or anybody) have any fix ready to go into
> > > the pipelines?
> > > It'd good to know before I, rest of us, begin tinkering with
> > > qemu & glusterfs.
> > 
> > liburing-devel does not seem to be available in the buildroot that
> > is
> > configured for Gluster. Untagging the liburing-2 package causes
> > builds
> > to fail as it can not be installed.
> 
> liburing-devel corresponding to the liburing version in appstream is 
> available in EPEL. However, EPEL is not enabled for 
> storage9s-gluster-11-el9s.
> 

Thanks for the info! If the EPEL version is compatible, it makes sense
to get it added to the buildroot.

> > I am currently tending towards building glusterfs without liburing
> > support. Maybe it makes sense to have the appstream(-devel?)
> > repository
> > included for the gluster buildroots, but I am not sure about that.

The above is what I'm making available in the ..-test repositories for
CentOS Stream 11 & 10. Performance might be a little lower without
liburing, but at least there are no conflicts when installing the
packages next to QEMU. Test results are very welcome!

> > What do others think about this?
> 
> Not directly related, but assuming you use liburing by utilizing EPEL
> and at the same time also drop other dependencies from 
> storage9s-gluster-11-el9s which are satisfied by EPEL, the resulting 
> glusterfs rpms might actually end up being the very similar to what
> we 
> currently provide for EL, i.e., in storage9-gluster-11-el9. The 
> glusterfs packages provided for EL do not suffers from these liburing
> conflicts. Obviously these are build using RHEL build roots, but very
> likely will work on Stream as well.

I like the idea, but it will still cause issues for users that are
updating and have liburing-2.x installed. Maybe the package gets
removed when glusterfs-server does not depend on liburing anymore? That
would make a clean path for updating to a new version with liburing
from EPEL at one point.

Thanks,
Niels

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