Description of problem:

After upgrading pulp from pulp-0.0.230-3.el6.noarch
to pulp-0.0.237-2.el6.src.rpm (testing),

i try to restart pulp but it failed
httpd traces :

[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6] mod_wsgi (pid=19345): Target WSGI script '/srv/pulp/webservices.wsgi' cannot be loaded as Python module.
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6] mod_wsgi (pid=19345): Exception occurred processing WSGI script '/srv/pulp/webservices.wsgi'.
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6] Traceback (most recent call last):
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]   File "/srv/pulp/webservices.wsgi", line 20, in <module>
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]     application = wsgi_application()
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]   File "/usr/lib/python2.6/site-packages/pulp/server/webservices/application.py", line 127, in wsgi_application
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]     _initialize_pulp()
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]   File "/usr/lib/python2.6/site-packages/pulp/server/webservices/application.py", line 98, in _initialize_pulp
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]     check_version()
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]   File "/usr/lib/python2.6/site-packages/pulp/server/db/version.py", line 160, in check_version
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6]     raise RuntimeError(msg)
[Tue Oct 04 07:09:13 2011] [error] [client 172.21.1.6] RuntimeError: data model version mismatch: 22 in use, but needs to be 23





then i start : service pulp-server init to upgrade data model.

But this failed with the following log :

...
migration to data model version 20 started
migration to data model version 20 complete
migration to data model version 21 started
migration to data model version 21 complete
migration to data model version 22 started
migration to data model version 22 complete
migration to data model version 23 started
No option 'variant' in section: 'general'
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/pulp/server/db/migrate/script.py", line 84, in datamodel_migration
    mod.migrate()
  File "/usr/lib/python2.6/site-packages/pulp/server/db/migrate/versions/twentythree.py", line 43, in migrate
    _migrate_distribution()
  File "/usr/lib/python2.6/site-packages/pulp/server/db/migrate/versions/twentythree.py", line 31, in _migrate_distribution
    treeinfo = parse_treeinfo(treecfg)
  File "/usr/lib/python2.6/site-packages/pulp/server/api/synchronizers.py", line 1217, in parse_treeinfo
    treeinfo_dict[field] = cfgparser.get('general', field) or None
  File "/usr/lib64/python2.6/ConfigParser.py", line 541, in get
    raise NoOptionError(option, section)
NoOptionError: No option 'variant' in section: 'general'