Comment 2 for bug 1940866

503 seems to be coming from neutron

    Response - Headers: {'cache-control': 'no-cache', 'connection': 'close', 'content-type': 'text/html', 'status': '503', 'content-location': 'http://192.168.24.3:9696/v2.0/floatingips/9222ffe1-b94e-4f62-a8c1-330fbc546493'}

but cinder is also failing to connect to mysql; wonder if this isn't all just a consequence of the oom killer doing its work?