Issue

Satellite upgrade from 6.3 to 6.4 fails with below error:

Upgrade Step: migrate_pulp...
systemctl start mongod finished successfully!
Traceback (most recent call last):
  File "/bin/pulp-manage-db", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 3011, in <module>
    parse_requirements(__requires__), Environment()
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 626, in resolve
    raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: kombu>=4.0.2,<5.0
su - apache -s /bin/bash -c pulp-manage-db failed! Check the output for error!
Upgrade step migrate_pulp failed. Check logs for more information.
                                      [FAIL]
Failed executing LANG=en_US.utf-8 satellite-installer --upgrade, exit status 1