OST Network suite is failing on "OSError: [Errno 28] No space left on device"

[Daniel Belenky]

It's not a space issue. Other suites ran on that slave after your suite
successfully.
I think that the problem is the setting for max semaphores, though I don't
know what you're doing to reach that limit.

[dbelenky at ovirt-srv18 ~]$ ipcs -ls

------ Semaphore Limits --------
max number of arrays = 128
max semaphores per array = 250
max semaphores system wide = 32000
max ops per semop call = 32
semaphore max value = 32767


On Sun, Mar 18, 2018 at 10:31 AM, Edward Haas <ehaas at redhat.com> wrote:

> http://jenkins.ovirt.org/job/ovirt-system-tests_network-suite-master/
>
> On Sun, Mar 18, 2018 at 10:24 AM, Daniel Belenky <dbelenky at redhat.com>
> wrote:
>
>> Hi Edi,
>>
>> Are there any logs? where you're running the suite? may I have a link?
>>
>> On Sun, Mar 18, 2018 at 8:20 AM, Edward Haas <ehaas at redhat.com> wrote:
>>
>>> Good morning,
>>>
>>> We are running in the OST network suite a test module with Ansible and
>>> it started failing during the weekend on "OSError: [Errno 28] No space left
>>> on device" when attempting to take a lock in the mutiprocessing python
>>> module.
>>>
>>> It smells like a slave resource problem, could someone help investigate
>>> this?
>>>
>>> Thanks,
>>> Edy.
>>>
>>> =================================== FAILURES ===================================
>>> ______________________ test_ovn_provider_create_scenario _______________________
>>>
>>> os_client_config = None
>>>
>>>     def test_ovn_provider_create_scenario(os_client_config):
>>> >       _test_ovn_provider('create_scenario.yml')
>>>
>>> network-suite-master/tests/test_ovn_provider.py:68:
>>> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
>>> network-suite-master/tests/test_ovn_provider.py:78: in _test_ovn_provider
>>>     playbook.run()
>>> network-suite-master/lib/ansiblelib.py:127: in run
>>>     self._run_playbook_executor()
>>> network-suite-master/lib/ansiblelib.py:138: in _run_playbook_executor
>>>     pbex = PlaybookExecutor(**self._pbex_args)
>>> /usr/lib/python2.7/site-packages/ansible/executor/playbook_executor.py:60: in __init__
>>>     self._tqm = TaskQueueManager(inventory=inventory, variable_manager=variable_manager, loader=loader, options=options, passwords=self.passwords)
>>> /usr/lib/python2.7/site-packages/ansible/executor/task_queue_manager.py:104: in __init__
>>>     self._final_q = multiprocessing.Queue()
>>> /usr/lib64/python2.7/multiprocessing/__init__.py:218: in Queue
>>>     return Queue(maxsize)
>>> /usr/lib64/python2.7/multiprocessing/queues.py:63: in __init__
>>>     self._rlock = Lock()
>>> /usr/lib64/python2.7/multiprocessing/synchronize.py:147: in __init__
>>>     SemLock.__init__(self, SEMAPHORE, 1, 1)
>>> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
>>>
>>> self = <Lock(owner=unknown)>, kind = 1, value = 1, maxvalue = 1
>>>
>>>     def __init__(self, kind, value, maxvalue):
>>> >       sl = self._semlock = _multiprocessing.SemLock(kind, value, maxvalue)
>>> E       OSError: [Errno 28] No space left on device
>>>
>>> /usr/lib64/python2.7/multiprocessing/synchronize.py:75: OSError
>>>
>>>
>>
>>
>> --
>>
>> DANIEL BELENKY
>>
>> RHV DEVOPS
>>
>
>


-- 

DANIEL BELENKY

RHV DEVOPS
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