Comment 0 for bug 1581493

Scenario:
            1. Create cluster with Neutron Vlan, cinder/swift
            2. Add 3 controller, 2 compute, 1 cinder nodes
            3. Verify Network
            4. Deploy cluster
            5. Verify networks
            6. Run OSTF
            7. Create 2 volumes and 2 instances with attached volumes
            8. Fill cinder storage up to 30%(15% for each instance)
            9. Shutdown of all nodes
            10. Wait 5 minutes
            11. Start cluster
            12. Wait until OSTF 'HA' suite passes << Fail
            13. Verify networks
            14. Run OSTF tests

OSTF fails while trying to authenticate

In ostf.log:
Authorization Failed: Unable to establish connection to https://10.109.13.3:5000/v2.0/tokens

In keystone-all.log:

unavailable: [client 10.109.11.5:38056] mod_wsgi (pid=7481): Unable to connect to WSGI daemon process 'keystone_main' on '/var/run/apache2/wsgi.7473.0.2.sock' after multiple attempts as listener backlog limit was exceeded.

Unfortunately environment with this test was cleaned up