failed message in logs even though there is no failure

Branch used:
stable/mitaka 2.0.2

Kolla base distro:
ubuntu

Docker version:
1.11.2

Ansible version:
1.9.6

Network interface has ip-address 10.13.97.14
Network interface is same as api-interface, storage interface and tunnel interface

WARNING/FAILURE message in logs:
TASK: [rabbitmq | fail msg="Hostname has to resolve to IP address of api_interface"] ***
skipping: [kumo-controller-14.kumo.int] => (item={'cmd': ['getent', 'ahostsv4', 'kumo-controller-14'], 'end': '2016-07-07 13:32:10.028827', 'stderr': u'', 'stdout': '10.13.97.14 STREAM kumo-controller-14.kumo.int\n10.13.97.14 DGRAM \n10.13.97.14 RAW ', 'changed': False, 'rc': 0, 'item': 'kumo-controller-14.kumo.int', 'warnings': [], 'delta': '0:00:00.004131', 'invocation': {'module_name': u'command', 'module_complex_args': {}, 'module_args': u'getent ahostsv4 kumo-controller-14'}, 'stdout_lines': ['10.13.97.14 STREAM kumo-controller-14.kumo.int', '10.13.97.14 DGRAM ', '10.13.97.14 RAW '], 'start': '2016-07-07 13:32:10.024696'})

End Result:
PLAY RECAP ********************************************************************
kumo-compute-15.kumo.int : ok=62 changed=0 unreachable=0 failed=0
kumo-compute-16.kumo.int : ok=84 changed=0 unreachable=0 failed=0
kumo-controller-14.kumo.int : ok=296 changed=0 unreachable=0 failed=0

I am not sure why I get this warning. My api-interface as per the "globals.yml" file is the same which has ip-address of 10.13.97.14 and hence confused why this fail message. Also, the end results doesn't show any failures. So filing the bug.