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

[Edward Haas]

We are doing nothing special there, just executing ansible through their
API.

On Sun, Mar 18, 2018 at 10:42 AM, Daniel Belenky <dbelenky at redhat.com>
wrote:

> 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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