SG gets deleted but throws exception

[Senthilnathan Murugappan]

root@a2s18:~# neutron security-group-list | grep testsg
| 5340eec7-499c-4fa9-8e3c-8ed7d6df2715 | testsg | egress, IPv4, any, remote_ip_prefix: 0.0.0.0/0 |

root@a2s18:~# neutron security-group-delete testsg
An unknown exception occurred.
Neutron server returns request_ids: ['req-e92c8c16-b0d8-4908-9bd8-503dfc2d4d42']

root@a2s18:~# neutron security-group-list | grep testsg
root@a2s18:~#

ERROR:contrail-api:SANDESH: [DROP: QueueLevel] __default__ [SYS_INFO]: VncApiConfigLog: api_log = << identifier_uuid = eab1959c-0e75-483f-91e5-0435a1ec2576 object_type = security_group url = http://127.0.0.1:9100/security-group/eab1959c-0e75-483f-91e5-0435a1ec2576 operation = After DB Entry Delete useragent = a2s18:/usr/bin/contrail-api remote_ip = 127.0.0.1:9100 domain = default-domain project = user-tenant user = user1 error = security_group:<type 'exceptions.TypeError'>

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 1081, in http_resource_delete
    ok, result = stateful_delete()
  File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 1075, in stateful_delete
    self.config_log(err_msg, level=SandeshLevel.SYS_ERR)
  File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 3361, in config_log
    sandesh=self._sandesh)
  File "/usr/lib/python2.7/dist-packages/pysandesh/sandesh_base.py", line 694, in send
    sandesh.drop_tx_sandesh(self, SandeshTxDropReason.QueueLevel)
  File "/usr/lib/python2.7/dist-packages/pysandesh/sandesh_base.py", line 414, in drop_tx_sandesh
    tx_sandesh.log()))
  File "/usr/lib/python2.7/dist-packages/cfgm_common/uve/vnc_api/ttypes.py", line 1612, in log
    log_str.write(self.api_msg)
TypeError: must be string or buffer, not tuple

 /usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py in http_resource_delete(self=<vnc_cfg_api_server.vnc_cfg_api_server.VncApiServer object>, obj_type='security_group', id='eab1959c
-0e75-483f-91e5-0435a1ec2576')
 1079
 1080 try:
 1081 ok, result = stateful_delete()
 1082 except NoIdError as e:
 1083 raise cfgm_common.exceptions.HttpError(
ok = False
result undefined
stateful_delete = <function stateful_delete>

 /usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py in stateful_delete()
 1073 if not ok:
 1074 # Delete is done, log to system, no point in informing user
 1075 self.config_log(err_msg, level=SandeshLevel.SYS_ERR)
 1076
 1077 return (True, '')
self = <vnc_cfg_api_server.vnc_cfg_api_server.VncApiServer object>
self.config_log = <bound method VncApiServer.config_log of <vnc_cf...i_server.vnc_cfg_api_server.VncApiServer object>>
err_msg = (404, 'No security_group: eab1959c-0e75-483f-91e5-0435a1ec2576')
level undefined
global SandeshLevel = <class 'pysandesh.gen_py.sandesh.ttypes.SandeshLevel'>
SandeshLevel.SYS_ERR = 3

 /usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py in config_log(self=<vnc_cfg_api_server.vnc_cfg_api_server.VncApiServer object>, msg_str=(404, 'No security_group: eab1959c-0e75-4
83f-91e5-0435a1ec2576'), level=3)
 3359 errcls.get(level, VncApiError)(
 3360 api_msg=msg_str, level=level, sandesh=self._sandesh).send(
 3361 sandesh=self._sandesh)
 3362 # end config_log
 3363
global sandesh = <module 'vnc_cfg_api_server.sandesh.discovery_cl...erver/sandesh/discovery_client_stats/ttypes.pyc'>
self = <vnc_cfg_api_server.vnc_cfg_api_server.VncApiServer object>
self._sandesh = <pysandesh.sandesh_base.Sandesh object>

 /usr/lib/python2.7/dist-packages/pysandesh/sandesh_base.py in send(self=VncApiError(_context='', _scope='', _category='_..._context='', _connect_to_collector=True, _role=0), sandesh=<pysandesh.sandesh_ba
se.Sandesh object>)
  692 return -1
  693 if self._level >= sandesh.send_level():
  694 sandesh.drop_tx_sandesh(self, SandeshTxDropReason.QueueLevel)
  695 return -1
  696 self._seqnum = self.next_seqnum()
sandesh = <pysandesh.sandesh_base.Sandesh object>
sandesh.drop_tx_sandesh = <bound method Sandesh.drop_tx_sandesh of <pysandesh.sandesh_base.Sandesh object>>
self = VncApiError(_context='', _scope='', _category='_..._context='', _connect_to_collector=True, _role=0)
global SandeshTxDropReason = <class 'pysandesh.gen_py.sandesh.ttypes.SandeshTxDropReason'>
SandeshTxDropReason.QueueLevel = 4

 /usr/lib/python2.7/dist-packages/pysandesh/sandesh_base.py in drop_tx_sandesh(self=<pysandesh.sandesh_base.Sandesh object>, tx_sandesh=VncApiError(_context='', _scope='', _category='_..._context='', _connect_to_collector=True, _role=0), drop_reason=4, level=None)
  412 self._logger.error('SANDESH: [DROP: %s] %s' % \
  413 (SandeshTxDropReason._VALUES_TO_NAMES[drop_reason],
  414 tx_sandesh.log()))
  415 # end drop_tx_sandesh
  416
tx_sandesh = VncApiError(_context='', _scope='', _category='_..._context='', _connect_to_collector=True, _role=0)
tx_sandesh.log = <bound method VncApiError.log of VncApiError(_co...context='', _connect_to_collector=True, _role=0)>

 /usr/lib/python2.7/dist-packages/cfgm_common/uve/vnc_api/ttypes.py in log(self=VncApiError(_context='', _scope='', _category='_..._context='', _connect_to_collector=True, _role=0), trace=False)
 1610 log_str.write(self.__class__.__name__ + ': ')
 1611 if self.api_msg is not None:
 1612 log_str.write(self.api_msg)
 1613 log_str.write(' ')
 1614 if self.file is not None:
log_str = <cStringIO.StringO object>
log_str.write = <built-in method write of cStringIO.StringO object>
self = VncApiError(_context='', _scope='', _category='_..._context='', _connect_to_collector=True, _role=0)
self.api_msg = (404, 'No security_group: eab1959c-0e75-483f-91e5-0435a1ec2576')

[Senthilnathan Murugappan (msenthil)]

dont observe the same on a R4.1 cluster

[Sachin Bansal (sbansal)]

Issue seen only in private build