2016-07-28 10:25:37.465 10255 INFO nova.osapi_compute.wsgi.server [req-0f0ef633-9d60-4e2f-9e10-e5e0a3909da7 None] Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/eventlet/wsgi.py", line 453, in handle_one_response
    write(''.join(towrite))
  File "/usr/lib/python2.7/site-packages/eventlet/wsgi.py", line 390, in write
    _writelines(towrite)
  File "/usr/lib64/python2.7/socket.py", line 334, in writelines
    self.flush()
  File "/usr/lib64/python2.7/socket.py", line 303, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
  File "/usr/lib/python2.7/site-packages/eventlet/green/ssl.py", line 137, in sendall
    v = self.send(data[count:])
  File "/usr/lib/python2.7/site-packages/eventlet/green/ssl.py", line 113, in send
    super(GreenSSLSocket, self).send, data, flags)
  File "/usr/lib/python2.7/site-packages/eventlet/green/ssl.py", line 80, in _call_trampolining
    return func(*a, **kw)
  File "/usr/lib64/python2.7/ssl.py", line 689, in send
    v = self._sslobj.write(data)
error: [Errno 32] Broken pipe