The above is a description of an error in a Python program. Here is
the original traceback:
Traceback (most recent call last):
File "/contrail-test/tcutils/wrappers.py", line 80, in wrapper
result = function(self, *args, **kwargs)
File "/contrail-test/serial_scripts/vrouter/test_fat_flow_aggr_serial.py", line 58, in test_fat_flow_aggr_dest_udp_inter_vn_inter_node
self.fat_flow_with_prefix_aggr(prefix_length=prefix_length,
File "/contrail-test/common/vrouter/base.py", line 637, in fat_flow_with_prefix_aggr
self.verify_fat_flow_with_traffic(client_fixtures,fix,
File "/contrail-test/common/vrouter/base.py", line 1417, in verify_fat_flow_with_traffic
(ff_count, rf_count) = dst_compute_fix.get_flow_count(
File "/contrail-test/fixtures/compute_node_test.py", line 483, in get_flow_count
flow_table = self.get_flow_table(index=index, refresh=refresh,
File "/contrail-test/fixtures/compute_node_test.py", line 456, in get_flow_table
flow_table_items = self.agent_inspect_h.get_vna_kflowresp(
File "/contrail-test/tcutils/agent/vna_introspect_utils.py", line 351, in get_vna_kflowresp
(records_set, next_index) = self.get_vna_next_kflowresp(
File "/contrail-test/tcutils/agent/vna_introspect_utils.py", line 367, in get_vna_next_kflowresp
records = response.getchildren()[0].xpath('./list/KFlowInfo')
AttributeError: 'NoneType' object has no attribute 'getchildren'
2025-11-24 05:59:20,605 - DEBUG - Skipping xmpp flap check
2025-11-24 05:59:20,605 - INFO -
2025-11-24 05:59:20,605 - INFO - END TEST : test_fat_flow_aggr_dest_udp_inter_vn_inter_node : FAILED[1:40:04]
2025-11-24 05:59:20,605 - INFO - --------------------------------------------------------------------------------
2025-11-24 05:59:21,913 - ERROR - TestFailed
Python 3.9.21: /usr/bin/python3
Mon Nov 24 05:59:20 2025
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
/contrail-test/tcutils/wrappers.py in wrapper(self=, *args=(), **kwargs={})
78 log.info('Initial checks done. Running the testcase now')
79 log.info('')
80 result = function(self, *args, **kwargs)
81 if self.inputs.upgrade:
82 pid = os.getpid()
result = None
function =
self =
args = ()
kwargs = {}
/contrail-test/serial_scripts/vrouter/test_fat_flow_aggr_serial.py in test_fat_flow_aggr_dest_udp_inter_vn_inter_node(self=)
91
92 """
93 self.inputs.set_af('dual')
94 super(FatFlowAggrIpv6Serial, self).test_fat_flow_aggr_dest_udp_inter_vn_inter_node()
95
builtinsuper =
global FatFlowAggrIpv6Serial =
self =
).test_fat_flow_aggr_dest_udp_inter_vn_inter_node = >
/contrail-test/tcutils/wrappers.py in wrapper(self=, *args=(), **kwargs={})
174 if 'ci_image' in list(os.environ.keys()):
175 os.environ['stop_execution_flag'] = 'set'
176 raise TestFailed("\n ".join(errmsg))
177 elif testskip:
178 log.info('')
global TestFailed =
"\n ".join undefined
errmsg = ["Test failed: AttributeError\nPython 3.9.21: /usr/...oneType' object has no attribute 'getchildren'\n\n\n"]
TestFailed: Test failed: AttributeError
Python 3.9.21: /usr/bin/python3
Mon Nov 24 05:59:14 2025
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
/contrail-test/tcutils/wrappers.py in wrapper(self=, *args=(), **kwargs={})
78 log.info('Initial checks done. Running the testcase now')
79 log.info('')
80 result = function(self, *args, **kwargs)
81 if self.inputs.upgrade:
82 pid = os.getpid()
result = None
function =
self =
args = ()
kwargs = {}
/contrail-test/serial_scripts/vrouter/test_fat_flow_aggr_serial.py in test_fat_flow_aggr_dest_udp_inter_vn_inter_node(self=)
56 policy_deny = False
57 vn_policy = True
58 self.fat_flow_with_prefix_aggr(prefix_length=prefix_length,
59 inter_node=inter_node,inter_vn=inter_vn, proto=proto,
60 port=port, vn_policy=vn_policy, policy_deny=policy_deny,
self =
self.fat_flow_with_prefix_aggr = >
prefix_length = 29
inter_node = True
inter_vn = True
proto = 'udp'
port = 55
vn_policy = True
policy_deny = False
dual undefined
ipv6 = True
prefix_length6 = 125
only_v6 = True
/contrail-test/common/vrouter/base.py in fat_flow_with_prefix_aggr(self=, prefix_length=29, prefix_length6=125, inter_node=True, inter_vn=True, dual=True, traffic_recvr=False, unidirectional_traffic=True, ignore_address=None, proto='udp', port=56, portv6=56, svc_chain=False, only_v6=True, af='v6', icmp_error=False, hc=None, vn_policy=True, policy_deny=False, svm_inter_node=False, resources=True, scale=False)
635 #expected_flow_count = 2 # For both left and right vmi
636 for fix in server_fixtures:
637 self.verify_fat_flow_with_traffic(client_fixtures,fix,
638 proto, port, af=af, expected_src_prefix_list=expected_src_prefix_list,
639 unidirectional_traffic=unidirectional_traffic,
self =
self.verify_fat_flow_with_traffic = >
client_fixtures = [, ]
fix =
proto = 'udp'
port = 56
af = 'v6'
expected_src_prefix_list = {: '2ad6:ae50:ec83:655c:6984:ffed::', : '2ad6:ae50:ec83:655c:6984:ffed:0:8'}
unidirectional_traffic = True
ignore_address = None
icmp_error = False
svm_fix = False
svm_fixture = None
expected_flow_count = 1
svc_chain = False
scale = False
scale_sessions = 1
/contrail-test/common/vrouter/base.py in verify_fat_flow_with_traffic(self=, sender_vm_fix_list=[, ], dst_vm_fix=, proto='udp', dest_port=56, traffic=True, expected_flow_count=1, fat_flow_count=1, af='v6', fat_flow_config=None, sport_list=[20000, 20001], dport_list=[56], expected_src_prefix_list={: '2ad6:ae50:ec83:655c:6984:ffed::', : '2ad6:ae50:ec83:655c:6984:ffed:0:8'}, expected_dst_prefix_list=None, unidirectional_traffic=True, traffic_recvr=False, ignore_address=None, icmp_error=False, svm_fix=None, svc_chain=False, scale=1)
1415 sport=None
1416 dport=None
1417 (ff_count, rf_count) = dst_compute_fix.get_flow_count(
1418 source_ip=fix.get_vm_ips(af=af)[0],
1419 dest_ip=dst_vm_fix.get_vm_ips(af=af)[0],
ff_count = 1
rf_count = 1
dst_compute_fix =
dst_compute_fix.get_flow_count = >
source_ip = '2ad6:ae50:ec83:655c:6984:ffed:0:3'
fix =
fix.get_vm_ips = >
af = 'v6'
dest_ip = '2ccc:cdca:e647:2fa9:714e:9746:0:3'
dst_vm_fix =
dst_vm_fix.get_vm_ips = >
source_port = 20000
sport = 20000
dest_port = 56
dport = 56
proto = 'udp'
vrf_id = '2'
/contrail-test/fixtures/compute_node_test.py in get_flow_count(self=, flow_table=None, index=None, source_ip='2ad6:ae50:ec83:655c:6984:ffed:0:3', dest_ip='2ccc:cdca:e647:2fa9:714e:9746:0:3', source_port=20000, dest_port=56, proto='udp', vrf_id='2', refresh=True, show_evicted=True)
481 reverse_flow_count = 0
482 if refresh or not flow_table:
483 flow_table = self.get_flow_table(index=index, refresh=refresh,
484 show_evicted=show_evicted)
485
flow_table = None
self =
self.get_flow_table = >
index = None
refresh = True
show_evicted = True
/contrail-test/fixtures/compute_node_test.py in get_flow_table(self=, index=None, refresh=True, show_evicted=True)
454 '''
455 if refresh:
456 flow_table_items = self.agent_inspect_h.get_vna_kflowresp(
457 index=index, show_evicted=show_evicted)
458 self.flow_table = FlowTable(flow_table_items)
flow_table_items undefined
self =
self.agent_inspect_h =
self.agent_inspect_h.get_vna_kflowresp = >
index = None
show_evicted = True
/contrail-test/tcutils/agent/vna_introspect_utils.py in get_vna_kflowresp(self=, index='', show_evicted=True)
349 next_index = record_list.getchildren()[1].text
350 while not (next_index == '0' or next_index == '0 evicted_set'):
351 (records_set, next_index) = self.get_vna_next_kflowresp(
352 next_index, show_evicted)
353 l.extend(records_set)
records_set undefined
next_index = '265729 evicted_set'
self =
self.get_vna_next_kflowresp = >
show_evicted = True
/contrail-test/tcutils/agent/vna_introspect_utils.py in get_vna_next_kflowresp(self=, x='265729 evicted_set', show_evicted=True)
365 l = []
366 response = self.dict_get('Snh_NextKFlowReq?x=%s' % (x))
367 records = response.getchildren()[0].xpath('./list/KFlowInfo')
368 next_index = response.getchildren()[1].text
369 for v in records:
records undefined
response = None
response.getchildren undefined
AttributeError: 'NoneType' object has no attribute 'getchildren'
__cause__ = None
__class__ =
__context__ = None
__delattr__ =
__dict__ = {}
__dir__ =
__doc__ = 'Attribute not found.'
__eq__ =
__format__ =
__ge__ =
__getattribute__ =
__gt__ =
__hash__ =
__init__ =
__init_subclass__ =
__le__ =
__lt__ =
__ne__ =
__new__ =
__reduce__ =
__reduce_ex__ =
__repr__ =
__setattr__ =
__setstate__ =
__sizeof__ =
__str__ =
__subclasshook__ =
__suppress_context__ = False
__traceback__ =
args = ("'NoneType' object has no attribute 'getchildren'",)
with_traceback =
The above is a description of an error in a Python program. Here is
the original traceback:
Traceback (most recent call last):
File "/contrail-test/tcutils/wrappers.py", line 80, in wrapper
result = function(self, *args, **kwargs)
File "/contrail-test/serial_scripts/vrouter/test_fat_flow_aggr_serial.py", line 58, in test_fat_flow_aggr_dest_udp_inter_vn_inter_node
self.fat_flow_with_prefix_aggr(prefix_length=prefix_length,
File "/contrail-test/common/vrouter/base.py", line 637, in fat_flow_with_prefix_aggr
self.verify_fat_flow_with_traffic(client_fixtures,fix,
File "/contrail-test/common/vrouter/base.py", line 1417, in verify_fat_flow_with_traffic
(ff_count, rf_count) = dst_compute_fix.get_flow_count(
File "/contrail-test/fixtures/compute_node_test.py", line 483, in get_flow_count
flow_table = self.get_flow_table(index=index, refresh=refresh,
File "/contrail-test/fixtures/compute_node_test.py", line 456, in get_flow_table
flow_table_items = self.agent_inspect_h.get_vna_kflowresp(
File "/contrail-test/tcutils/agent/vna_introspect_utils.py", line 351, in get_vna_kflowresp
(records_set, next_index) = self.get_vna_next_kflowresp(
File "/contrail-test/tcutils/agent/vna_introspect_utils.py", line 367, in get_vna_next_kflowresp
records = response.getchildren()[0].xpath('./list/KFlowInfo')
AttributeError: 'NoneType' object has no attribute 'getchildren'
__cause__ = None
__class__ =
__context__ = None
__delattr__ =
__dict__ = {}
__dir__ =
__doc__ = None
__eq__ =
__format__ =
__ge__ =
__getattribute__ =
__gt__ =
__hash__ =
__init__ =
__init_subclass__ =
__le__ =
__lt__ =
__module__ = 'tcutils.cores'
__ne__ =
__new__ =
__reduce__ =
__reduce_ex__ =
__repr__ =
__setattr__ =
__setstate__ =
__sizeof__ =
__str__ =
__subclasshook__ =
__suppress_context__ = False
__traceback__ =
__weakref__ = None
args = ("Test failed: AttributeError\nPython 3.9.21: /usr/...oneType' object has no attribute 'getchildren'\n\n\n",)
with_traceback =
The above is a description of an error in a Python program. Here is
the original traceback:
Traceback (most recent call last):
File "/contrail-test/tcutils/wrappers.py", line 80, in wrapper
result = function(self, *args, **kwargs)
File "/contrail-test/serial_scripts/vrouter/test_fat_flow_aggr_serial.py", line 94, in test_fat_flow_aggr_dest_udp_inter_vn_inter_node
super(FatFlowAggrIpv6Serial, self).test_fat_flow_aggr_dest_udp_inter_vn_inter_node()
File "/contrail-test/tcutils/wrappers.py", line 176, in wrapper
raise TestFailed("\n ".join(errmsg))
tcutils.cores.TestFailed: Test failed: AttributeError
Python 3.9.21: /usr/bin/python3
Mon Nov 24 05:59:14 2025
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
/contrail-test/tcutils/wrappers.py in wrapper(self=, *args=(), **kwargs={})
78 log.info('Initial checks done. Running the testcase now')
79 log.info('')
80 result = function(self, *args, **kwargs)
81 if self.inputs.upgrade:
82 pid = os.getpid()
result = None
function =
self =
args = ()
kwargs = {}
/contrail-test/serial_scripts/vrouter/test_fat_flow_aggr_serial.py in test_fat_flow_aggr_dest_udp_inter_vn_inter_node(self=)
56 policy_deny = False
57 vn_policy = True
58 self.fat_flow_with_prefix_aggr(prefix_length=prefix_length,
59 inter_node=inter_node,inter_vn=inter_vn, proto=proto,
60 port=port, vn_policy=vn_policy, policy_deny=policy_deny,
self =
self.fat_flow_with_prefix_aggr = >
prefix_length = 29
inter_node = True
inter_vn = True
proto = 'udp'
port = 55
vn_policy = True
policy_deny = False
dual undefined
ipv6 = True
prefix_length6 = 125
only_v6 = True
/contrail-test/common/vrouter/base.py in fat_flow_with_prefix_aggr(self=, prefix_length=29, prefix_length6=125, inter_node=True, inter_vn=True, dual=True, traffic_recvr=False, unidirectional_traffic=True, ignore_address=None, proto='udp', port=56, portv6=56, svc_chain=False, only_v6=True, af='v6', icmp_error=False, hc=None, vn_policy=True, policy_deny=False, svm_inter_node=False, resources=True, scale=False)
635 #expected_flow_count = 2 # For both left and right vmi
636 for fix in server_fixtures:
637 self.verify_fat_flow_with_traffic(client_fixtures,fix,
638 proto, port, af=af, expected_src_prefix_list=expected_src_prefix_list,
639 unidirectional_traffic=unidirectional_traffic,
self =
self.verify_fat_flow_with_traffic = >
client_fixtures = [, ]
fix =
proto = 'udp'
port = 56
af = 'v6'
expected_src_prefix_list = {: '2ad6:ae50:ec83:655c:6984:ffed::', : '2ad6:ae50:ec83:655c:6984:ffed:0:8'}
unidirectional_traffic = True
ignore_address = None
icmp_error = False
svm_fix = False
svm_fixture = None
expected_flow_count = 1
svc_chain = False
scale = False
scale_sessions = 1
/contrail-test/common/vrouter/base.py in verify_fat_flow_with_traffic(self=, sender_vm_fix_list=[, ], dst_vm_fix=, proto='udp', dest_port=56, traffic=True, expected_flow_count=1, fat_flow_count=1, af='v6', fat_flow_config=None, sport_list=[20000, 20001], dport_list=[56], expected_src_prefix_list={: '2ad6:ae50:ec83:655c:6984:ffed::', : '2ad6:ae50:ec83:655c:6984:ffed:0:8'}, expected_dst_prefix_list=None, unidirectional_traffic=True, traffic_recvr=False, ignore_address=None, icmp_error=False, svm_fix=None, svc_chain=False, scale=1)
1415 sport=None
1416 dport=None
1417 (ff_count, rf_count) = dst_compute_fix.get_flow_count(
1418 source_ip=fix.get_vm_ips(af=af)[0],
1419 dest_ip=dst_vm_fix.get_vm_ips(af=af)[0],
ff_count = 1
rf_count = 1
dst_compute_fix =
dst_compute_fix.get_flow_count = >
source_ip = '2ad6:ae50:ec83:655c:6984:ffed:0:3'
fix =
fix.get_vm_ips = >
af = 'v6'
dest_ip = '2ccc:cdca:e647:2fa9:714e:9746:0:3'
dst_vm_fix =
dst_vm_fix.get_vm_ips = >
source_port = 20000
sport = 20000
dest_port = 56
dport = 56
proto = 'udp'
vrf_id = '2'
/contrail-test/fixtures/compute_node_test.py in get_flow_count(self=, flow_table=None, index=None, source_ip='2ad6:ae50:ec83:655c:6984:ffed:0:3', dest_ip='2ccc:cdca:e647:2fa9:714e:9746:0:3', source_port=20000, dest_port=56, proto='udp', vrf_id='2', refresh=True, show_evicted=True)
481 reverse_flow_count = 0
482 if refresh or not flow_table:
483 flow_table = self.get_flow_table(index=index, refresh=refresh,
484 show_evicted=show_evicted)
485
flow_table = None
self =
self.get_flow_table = >
index = None
refresh = True
show_evicted = True
/contrail-test/fixtures/compute_node_test.py in get_flow_table(self=, index=None, refresh=True, show_evicted=True)
454 '''
455 if refresh:
456 flow_table_items = self.agent_inspect_h.get_vna_kflowresp(
457 index=index, show_evicted=show_evicted)
458 self.flow_table = FlowTable(flow_table_items)
flow_table_items undefined
self =
self.agent_inspect_h =
self.agent_inspect_h.get_vna_kflowresp = >
index = None
show_evicted = True
/contrail-test/tcutils/agent/vna_introspect_utils.py in get_vna_kflowresp(self=, index='', show_evicted=True)
349 next_index = record_list.getchildren()[1].text
350 while not (next_index == '0' or next_index == '0 evicted_set'):
351 (records_set, next_index) = self.get_vna_next_kflowresp(
352 next_index, show_evicted)
353 l.extend(records_set)
records_set undefined
next_index = '265729 evicted_set'
self =
self.get_vna_next_kflowresp = >
show_evicted = True
/contrail-test/tcutils/agent/vna_introspect_utils.py in get_vna_next_kflowresp(self=, x='265729 evicted_set', show_evicted=True)
365 l = []
366 response = self.dict_get('Snh_NextKFlowReq?x=%s' % (x))
367 records = response.getchildren()[0].xpath('./list/KFlowInfo')
368 next_index = response.getchildren()[1].text
369 for v in records:
records undefined
response = None
response.getchildren undefined
AttributeError: 'NoneType' object has no attribute 'getchildren'
__cause__ = None
__class__ =
__context__ = None
__delattr__ =
__dict__ = {}
__dir__ =
__doc__ = 'Attribute not found.'
__eq__ =
__format__ =
__ge__ =
__getattribute__ =
__gt__ =
__hash__ =
__init__ =
__init_subclass__ =
__le__ =
__lt__ =
__ne__ =
__new__ =
__reduce__ =
__reduce_ex__ =
__repr__ =
__setattr__ =
__setstate__ =
__sizeof__ =
__str__ =
__subclasshook__ =
__suppress_context__ = False
__traceback__ =
args = ("'NoneType' object has no attribute 'getchildren'",)
with_traceback =
The above is a description of an error in a Python program. Here is
the original traceback:
Traceback (most recent call last):
File "/contrail-test/tcutils/wrappers.py", line 80, in wrapper
result = function(self, *args, **kwargs)
File "/contrail-test/serial_scripts/vrouter/test_fat_flow_aggr_serial.py", line 58, in test_fat_flow_aggr_dest_udp_inter_vn_inter_node
self.fat_flow_with_prefix_aggr(prefix_length=prefix_length,
File "/contrail-test/common/vrouter/base.py", line 637, in fat_flow_with_prefix_aggr
self.verify_fat_flow_with_traffic(client_fixtures,fix,
File "/contrail-test/common/vrouter/base.py", line 1417, in verify_fat_flow_with_traffic
(ff_count, rf_count) = dst_compute_fix.get_flow_count(
File "/contrail-test/fixtures/compute_node_test.py", line 483, in get_flow_count
flow_table = self.get_flow_table(index=index, refresh=refresh,
File "/contrail-test/fixtures/compute_node_test.py", line 456, in get_flow_table
flow_table_items = self.agent_inspect_h.get_vna_kflowresp(
File "/contrail-test/tcutils/agent/vna_introspect_utils.py", line 351, in get_vna_kflowresp
(records_set, next_index) = self.get_vna_next_kflowresp(
File "/contrail-test/tcutils/agent/vna_introspect_utils.py", line 367, in get_vna_next_kflowresp
records = response.getchildren()[0].xpath('./list/KFlowInfo')
AttributeError: 'NoneType' object has no attribute 'getchildren'
2025-11-24 05:59:21,914 - DEBUG - Skipping xmpp flap check
2025-11-24 05:59:21,914 - INFO -
2025-11-24 05:59:21,914 - INFO - END TEST : test_fat_flow_aggr_dest_udp_inter_vn_inter_node : FAILED[1:40:07]
2025-11-24 05:59:21,915 - INFO - --------------------------------------------------------------------------------
2025-11-24 05:59:22,762 - INFO - Deleted project: ctest-FatFlowAggrIpv6Serial-43591693, ID : 259e3852-5864-4a03-b4e8-989b328bcef2