[system_test] simple flat add compute failed with nova-manage execution error

[Tatyanka]

Next tests failed on CI
http://jenkins-product.srt.mirantis.net:8080/view/6.0_swarm/job/6.0_fuelmain.system_test.ubuntu.thread_2/4/testReport/junit/%28root%29/simple_flat_add_compute/simple_flat_add_compute/
http://paste.openstack.org/show/122689/

But after env was reverted nova-manage works fine and python-memcached is installed

Connection to node-1 closed.
[root@nailgun ~]# fuel env
id | status | name | mode | release_id | changes | pending_release_id
---|-------------|------------|-----------|------------|---------|-------------------
1 | operational | SimpleFlat | multinode | 2 | [] | None
[root@nailgun ~]# fuel node
id | status | name | cluster | ip | mac | roles | pending_roles | online
---|--------|---------------------|---------|------------|-------------------|------------|---------------|-------
1 | ready | slave-01_controller | 1 | 10.108.0.3 | 64:9e:42:38:e3:ec | controller | | True
2 | ready | slave-03_compute | 1 | 10.108.0.5 | 64:7a:32:db:c5:bf | compute | | True
3 | ready | slave-02_compute | 1 | 10.108.0.4 | 64:26:64:c5:c2:e9 | compute | | True
[root@nailgun ~]# ssh node-1

root@node-1:/var/log/nova# nova-manage service list
2014-10-20 13:34:31.080 556 DEBUG nova.servicegroup.api [-] ServiceGroup driver defined as an instance of db __new__ /usr/lib/python2.7/dist-packages/nova/servicegroup/api.py:65
2014-10-20 13:34:31.323 556 DEBUG oslo.db.sqlalchemy.session [req-e4d8b040-71f3-4e9b-999f-5946e313d029 ] MySQL server mode set to STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION _init_events /usr/lib/python2.7/dist-packages/oslo/db/sqlalchemy/session.py:474
Binary Host Zone Status State Updated_At
nova-consoleauth node-1 internal enabled :-) 2014-10-20 13:34:22
nova-scheduler node-1 internal enabled :-) 2014-10-20 13:34:22
nova-conductor node-1 internal enabled :-) 2014-10-20 13:34:22
nova-cert node-1 internal enabled :-) 2014-10-20 13:34:24
nova-compute node-3 nova enabled :-) 2014-10-20 13:34:21
nova-network node-3 internal enabled :-) 2014-10-20 13:34:21
nova-compute node-2 nova enabled :-) 2014-10-20 13:34:24
nova-network node-2 internal enabled :-) 2014-10-20 13:34:24
root@node-1:/var/log/nova# exit

So we need try to reproduce this magic