Hi,
I have posted a patch with the suggested workaround [1].
If need anything else,  please let me know.

[1] https://gerrit.ovirt.org/c/vdsm/+/117372

Harel


On Thu, Oct 28, 2021 at 2:08 PM Marcin Sobczyk <msobc...@redhat.com> wrote:

> Hi,
>
> On 10/28/21 11:59, Sandro Bonazzola wrote:
> > hi,
> > I'm trying to enable copr builds for vdsm (
> > https://gerrit.ovirt.org/c/vdsm/+/117368
> > <https://gerrit.ovirt.org/c/vdsm/+/117368> )
> >
> > And it's currently failing to rebuild src.rpm (generated on Fedora 34)
> > for el8 with the following error:
> > (
> https://download.copr.fedorainfracloud.org/results/ovirt/ovirt-master-snapshot/centos-stream-8-x86_64/02912480-vdsm/build.log.gz
> > <
> https://download.copr.fedorainfracloud.org/results/ovirt/ovirt-master-snapshot/centos-stream-8-x86_64/02912480-vdsm/build.log.gz>
>
> > )
> >
> > make[2]: Entering directory
> '/builddir/build/BUILD/vdsm-4.50.0.1/lib/vdsm'
> > Making all in api
> > make[3]: Entering directory
> '/builddir/build/BUILD/vdsm-4.50.0.1/lib/vdsm/api'
> >    Generate vdsm-api.html
> > chmod u+w .
> > PYTHONPATH=./../../:./../../vdsm \
> >       ./schema_to_html.py vdsm-api ./vdsm-api.html
> > Traceback (most recent call last):
> >    File "./schema_to_html.py", line 250, in <module>
> >      main()
> >    File "./schema_to_html.py", line 245, in main
> >      api_schema = vdsmapi.Schema((schema_type,), strict_mode=False)
> >    File "/builddir/build/BUILD/vdsm-4.50.0.1/lib/vdsm/api/vdsmapi.py",
> line 145, in __init__
> >      loaded_schema = pickle.loads(f.read())
> > ValueError: unsupported pickle protocol: 5
> > make[3]: *** [Makefile:697: vdsm-api.html] Error 1
> > make[3]: Leaving directory
> '/builddir/build/BUILD/vdsm-4.50.0.1/lib/vdsm/api'
> > make[2]: *** [Makefile:644: all-recursive] Error 1
> > make[2]: Leaving directory '/builddir/build/BUILD/vdsm-4.50.0.1/lib/vdsm'
> > make[1]: *** [Makefile:466: all-recursive] Error 1
> > make[1]: Leaving directory '/builddir/build/BUILD/vdsm-4.50.0.1/lib'
> > make: *** [Makefile:539: all-recursive] Error 1
> > error: Bad exit status from /var/tmp/rpm-tmp.nDfLzv (%build)
> >
> > Sounds like the make dist process ran on Fedora 34 brings a source file
> used at build time on el8 in a cpickle format which is not backward
> compatible.
> >
> > Seems to be a bug, the cpickle shouldn't be included in the tar.gz, it
> should be generated at build time.
> >
> > Comments?
>
> The pickles were introduced here:
>
> https://gerrit.ovirt.org/c/vdsm/+/94196
>
> AFAIR they were added to the vdsm-api package because previously we were
> generating them in during rpm installation in %post section which caused
> issues with oVirt Node.
>
> I'm not sure how easy will it be to not have them in the srpm/tar.gz but
> have them in the rpm. As a quick workaround I can change the pickle
> protocol version that we use [1] to '4', which should work for both
> Fedora 34 and el8.
>
> Regards, Marcin
>
> [1]
>
> https://github.com/oVirt/vdsm/blob/1969ab99c371ad498ea8693671cec60e2d0d49c2/lib/vdsm/api/schema_to_pickle.py#L46
>
>
> >
> > --
> >
> > Sandro Bonazzola
> >
> > MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
> >
> > Red Hat EMEA <https://www.redhat.com/>
> >
> > sbona...@redhat.com <mailto:sbona...@redhat.com>
> >
> > <https://www.redhat.com/>
> >
> > **
> > *Red Hat respects your work life balance. Therefore there is no need to
> > answer this email out of your office hours.
> > *
> > *
> >
> > *
>
>
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