Status: New
Owner: ----
Labels: Type-Defect Priority-Medium Milestone-Release2.11
New issue 647 by [email protected]: drbd84 QA is flaky
http://code.google.com/p/ganeti/issues/detail?id=647
The drbd84 QA is flaky. It frequently fails due to race conditions when
releasing devices. Since flaky tests are rather annoying we should either
fix the flakiness in the implementation if possible or at least in the QA.
Example of such a failed QA:
<<<< 2013-12-19 07:11:03.317911 start [TestRapiInstanceRemove] Test
removing instance via RAPI
DELETE /2/instances/INSTANCE
GET /2/jobs/758
Thu Dec 19 07:11:47 2013 - WARNING: Could not remove disk 0 on node NODE,
continuing anyway: Can't lvremove: exited with exit code 5 - Logical
volume xenvg/a6c2dff7-4f74-4555-bd5b-2c04c9958745.disk0 is used by another
device.\n
---- FAILED [TestRapiInstanceRemove] Test removing instance via RAPI: Can't
remove instance's disks
2013-12-19 07:11:48.864398 time=0:00:45.546487
[TestRapiInstanceRemove] Test removing instance via RAPI
Traceback (most recent call last):
File "./ganeti-qa.py", line 1025, in <module>
main()
File "/buildbot/qa-drbd84/qa-drbd84-full/build/ganeti/rapi/client.py",
line 245, in wrapper
return fn(*args, **kwargs)
File "./ganeti-qa.py", line 1020, in main
RunQa()
File "./ganeti-qa.py", line 905, in RunQa
RunTest(qa_rapi.TestRapiInstanceRemove, rapi_instance, use_client)
File "./ganeti-qa.py", line 103, in RunTest
retval = fn(*args, **kwargs)
File "/buildbot/qa-drbd84/qa-drbd84-full/build/qa/qa_utils.py", line 713,
in wrapper
result = fn(*args, **kwargs)
File "/buildbot/qa-drbd84/qa-drbd84-full/build/qa/qa_rapi.py", line 641,
in TestRapiInstanceRemove
_WaitForRapiJob(job_id)
File "/buildbot/qa-drbd84/qa-drbd84-full/build/qa/qa_rapi.py", line 510,
in _WaitForRapiJob
cli.StdioJobPollReportCb())
File "/buildbot/qa-drbd84/qa-drbd84-full/build/ganeti/rapi/client_utils.py",
line 98, in PollJob
return cli.GenericPollJob(job_id, RapiJobPollCb(rapi_client), reporter)
File "/buildbot/qa-drbd84/qa-drbd84-full/build/ganeti/cli.py", line 2101,
in GenericPollJob
errors.MaybeRaise(msg)
File "/buildbot/qa-drbd84/qa-drbd84-full/build/ganeti/errors.py", line
501, in MaybeRaise
raise errcls(*args)
ganeti.errors.OpExecError: Can't remove instance's disks
program finished with exit code 1
elapsedTime=20392.453384
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