Comment 3 for bug 1157625

Same problem happening again here: http://logs.openstack.org/28503/2/gate/gate-nova-python27/22881/

Slightly different error output this time as it references 'database "openstack_citest"' compared to previously 'source database "template1"'.

Traceback (most recent call last):
  File "/home/jenkins/workspace/gate-nova-python27/nova/tests/test_migrations.py", line 240, in tearDown
    self._reset_databases()
  File "/home/jenkins/workspace/gate-nova-python27/nova/tests/test_migrations.py", line 297, in _reset_databases
    self._reset_pg(conn_pieces)
  File "/home/jenkins/workspace/gate-nova-python27/nova/openstack/common/lockutils.py", line 232, in inner
    retval = f(*args, **kwargs)
  File "/home/jenkins/workspace/gate-nova-python27/nova/tests/test_migrations.py", line 263, in _reset_pg
    self.execute_cmd(droptable)
  File "/home/jenkins/workspace/gate-nova-python27/nova/tests/test_migrations.py", line 247, in execute_cmd
    "Failed to run: %s\n%s" % (cmd, output))
MismatchError: 0 != 256: Failed to run: psql -w -U openstack_citest -h localhost -c 'drop database if exists openstack_citest;' -d template1
ERROR: database "openstack_citest" is being accessed by other users
DETAIL: There are 1 other session(s) using the database.