[ovirt-devel] Re: VDSM build failure: unsupported pickle protocol: 5
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-sna...
<https://download.copr.fedorainfracloud.org/results/ovirt/ovirt-master-sna...
)
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/1969ab99c371ad498ea8693671cec60e2d0d49...
--
Sandro Bonazzola
MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
Red Hat EMEA <https://www.redhat.com/>
sbonazzo(a)redhat.com <mailto:sbonazzo@redhat.com>
<https://www.redhat.com/>
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