Description of problem:
Traceback is observed when lsmcli fails due timeout

error: 303 msg: Unhandled exception in plug-in data: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/lsm/pluginrunner.py", line 94, in run
    **msg['params'])
  File "/usr/lib/python2.7/site-packages/lsm/ontap.py", line 67, in na_wrapper
    return method(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/lsm/ontap.py", line 262, in volume_create
    self.f.volume_create(pool.name, vol_prefix, size_bytes)
  File "/usr/lib/python2.7/site-packages/lsm/na.py", line 335, in volume_create
    self._invoke('volume-create', params)
  File "/usr/lib/python2.7/site-packages/lsm/na.py", line 167, in _invoke
    command, parameters, self.ssl)
  File "/usr/lib/python2.7/site-packages/lsm/na.py", line 105, in netapp_filer
    rc = netapp_filer_parse_response(handler.read())
  File "/usr/lib64/python2.7/socket.py", line 351, in read
    data = self._sock.recv(rbufsize)
  File "/usr/lib64/python2.7/httplib.py", line 567, in read
    s = self.fp.read(amt)
  File "/usr/lib64/python2.7/socket.py", line 380, in read
    data = self._sock.recv(left)
timeout: timed out

Version-Release number of selected component (if applicable):

libstoragemgmt-0.0.21-1.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Start lsmd daemon
/usr/bin/lsmd

2.Try to execute a command giving short time to execute it, then it fails due time out.

lsmcli -w 300  -u ontap://<target> --create-volume=lsm-timeout-test-lun --size=2G --pool=6e3dc350-811e-11e0-a8a4-00a09827d1ba --provisioning=DEFAULT
error: 303 msg: Unhandled exception in plug-in data: Traceback (most recent call last)


Expected results:
no Traceback