2012-07-24 12:14:51 DEBUG nova.service [-] publish_errors : False from (pid=5256) wait /usr/lib/python2.7/dist-packages/nova/service.py:411
2012-07-24 12:24:04 TRACE nova.rpc.amqp     self._set_instance_error_state(context, instance_uuid)


def wait():
    LOG.debug(_('Full set of FLAGS:'))
    for flag in FLAGS:
        flag_get = FLAGS.get(flag, None)
        # hide flag contents from log if contains a password
        # should use secret flag when switch over to openstack-common
        if ("_password" in flag or "_key" in flag or
                (flag == "sql_connection" and "mysql:" in flag_get)):
            LOG.debug(_('%(flag)s : FLAG SET ') % locals())
        else:
            LOG.debug('%(flag)s : %(flag_get)s' % locals())

^ this is serice.py line 411 on my box