Public bug reported:
>From time to time it happens that fullstack
neutron.tests.fullstack.test_securitygroup.TestSecurityGroupsSameNetwork.test_securitygroup
test is failing due to BrokenPipeError exception.
Example of such failure:
ft1.2:
neutron.tests.fullstack.test_securitygroup.TestSecurityGroupsSameNetwork.test_securitygroup(ovs-openflow)testtools.testresult.real._StringException:
Traceback (most recent call last):
File
"/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.6/site-packages/eventlet/greenio/py3.py",
line 141, in write
written = _original_os.write(self._fileno, view[offset:])
File
"/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.6/site-packages/eventlet/green/os.py",
line 64, in write
return __original_write__(fd, st)
BrokenPipeError: [Errno 32] Broken pipe
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py",
line 182, in func
return f(self, *args, **kwargs)
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_securitygroup.py",
line 130, in test_securitygroup
net_helpers.NetcatTester.TCP)
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_securitygroup.py",
line 72, in assert_connection
common_utils.wait_until_true(test_connectivity)
File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py",
line 701, in wait_until_true
while not predicate():
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_securitygroup.py",
line 67, in test_connectivity
return netcat.test_connectivity()
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/common/net_helpers.py",
line 542, in test_connectivity
self.client_process.writeline(testing_string)
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/common/net_helpers.py",
line 320, in writeline
self.stdin.flush()
File
"/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.6/site-packages/eventlet/greenio/py3.py",
line 144, in write
raise IOError(*e.args)
BrokenPipeError: [Errno 32] Broken pipe
https://b63fb0eeeda41f664065-da4d3406a0cf7110a347a18ceb92c153.ssl.cf2.rackcdn.com/708985/8/check
/neutron-fullstack/7a919ac/testr_results.html
It seems that problem is, that it may happen that nc client or server process
isn't really started yet when it tries to read_stdout or writeline in
neutron.tests.common.net_helpers.NetcatTester object.
We should handle such exception properly in tests.
** Affects: neutron
Importance: High
Assignee: Slawek Kaplonski (slaweq)
Status: Confirmed
** Tags: fullstack gate-failure
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https://bugs.launchpad.net/bugs/1871908
Title:
Fullstack security groups tests failing with "broken pipe" error
Status in neutron:
Confirmed
Bug description:
From time to time it happens that fullstack
neutron.tests.fullstack.test_securitygroup.TestSecurityGroupsSameNetwork.test_securitygroup
test is failing due to BrokenPipeError exception.
Example of such failure:
ft1.2:
neutron.tests.fullstack.test_securitygroup.TestSecurityGroupsSameNetwork.test_securitygroup(ovs-openflow)testtools.testresult.real._StringException:
Traceback (most recent call last):
File
"/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.6/site-packages/eventlet/greenio/py3.py",
line 141, in write
written = _original_os.write(self._fileno, view[offset:])
File
"/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.6/site-packages/eventlet/green/os.py",
line 64, in write
return __original_write__(fd, st)
BrokenPipeError: [Errno 32] Broken pipe
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py",
line 182, in func
return f(self, *args, **kwargs)
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_securitygroup.py",
line 130, in test_securitygroup
net_helpers.NetcatTester.TCP)
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_securitygroup.py",
line 72, in assert_connection
common_utils.wait_until_true(test_connectivity)
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line
701, in wait_until_true
while not predicate():
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_securitygroup.py",
line 67, in test_connectivity
return netcat.test_connectivity()
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/common/net_helpers.py",
line 542, in test_connectivity
self.client_process.writeline(testing_string)
File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/common/net_helpers.py",
line 320, in writeline
self.stdin.flush()
File
"/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-fullstack-gate/lib/python3.6/site-packages/eventlet/greenio/py3.py",
line 144, in write
raise IOError(*e.args)
BrokenPipeError: [Errno 32] Broken pipe
https://b63fb0eeeda41f664065-da4d3406a0cf7110a347a18ceb92c153.ssl.cf2.rackcdn.com/708985/8/check
/neutron-fullstack/7a919ac/testr_results.html
It seems that problem is, that it may happen that nc client or server process
isn't really started yet when it tries to read_stdout or writeline in
neutron.tests.common.net_helpers.NetcatTester object.
We should handle such exception properly in tests.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1871908/+subscriptions
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