Description of problem:
When upgrading an ovirt 3.4 installation to 3.5, we are seeing this error:

2015-02-04 15:50:29 DEBUG otopi.plugins.ovirt_engine_setup.ovirt_engine.upgrade.asynctasks plugin.executeRaw:803 execute-result: ('/usr/share/ovirt-engine/setup/dbutils/taskcleaner.sh', '-l', '/var/log/ovirt-engine/setup/ovirt-engine-setup-20150204155001-xiivim.log', '-u', 'engine', '-s', 'localhost', '-p', '5432', '-d', 'engine', '-R', '-A', '-J', '-q'), rc=1
2015-02-04 15:50:29 DEBUG otopi.plugins.ovirt_engine_setup.ovirt_engine.upgrade.asynctasks plugin.execute:861 execute-output: ('/usr/share/ovirt-engine/setup/dbutils/taskcleaner.sh', '-l', '/var/log/ovirt-engine/setup/ovirt-engine-setup-20150204155001-xiivim.log', '-u', 'engine', '-s', 'localhost', '-p', '5432', '-d', 'engine', '-R', '-A', '-J', '-q') stdout:


2015-02-04 15:50:29 DEBUG otopi.plugins.ovirt_engine_setup.ovirt_engine.upgrade.asynctasks plugin.execute:866 execute-output: ('/usr/share/ovirt-engine/setup/dbutils/taskcleaner.sh', '-l', '/var/log/ovirt-engine/setup/ovirt-engine-setup-20150204155001-xiivim.log', '-u', 'engine', '-s', 'localhost', '-p', '5432', '-d', 'engine', '-R', '-A', '-J', '-q') stderr:
psql:/usr/share/ovirt-engine/setup/dbutils/taskcleaner_sp.sql:145: ERROR:  type "command_entities" does not exist
FATAL: Cannot execute sql command: --file=/usr/share/ovirt-engine/setup/dbutils/taskcleaner_sp.sql

2015-02-04 15:50:29 DEBUG otopi.context context._executeMethod:152 method exception
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/otopi/context.py", line 142, in _executeMethod
    method['method']()
  File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/ovirt-engine/upgrade/asynctasks.py", line 422, in _validateZombies
    self._clearZombieTasks()
  File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/ovirt-engine/upgrade/asynctasks.py", line 156, in _clearZombieTasks
    'Failed to clear zombie tasks. Please access support '
RuntimeError: Failed to clear zombie tasks. Please access support in attempt to resolve the problem
2015-02-04 15:50:29 ERROR otopi.context context._executeMethod:161 Failed to execute stage 'Setup validation': Failed to clear zombie tasks. Please access support in attempt to resolve the problem

And the upgrade does not finish properly

Version-Release number of selected component (if applicable):
ovirt-engine-3.5

How reproducible:
See the jenkins job:
  http://jenkins.ovirt.org/job/ovirt-engine_3.5_upgrade-from-3.4_merged/1371/label=el6/console

Steps to Reproduce:
1.Install ovirt engine 3.4
2.Upgrade to ovirt engine 3.5
3.

Actual results:
Upgrade fails

Expected results:
Upgrade works

Additional info:
See the jenkins job:
  http://jenkins.ovirt.org/job/ovirt-engine_3.5_upgrade-from-3.4_merged/1371/label=el6/console