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[Bug 1665053] [NEW] test_stamp_pattern times out waiting for the device to show up on the guest

 

Public bug reported:

When running test_stamp_pattern sometimes the test times out waiting for
the device to show up on the guest after the volume attach is issue. An
example traceback is:

     Traceback (most recent call last): 
       File "tempest/test.py", line 103, in wrapper 
         return f(self, *func_args, **func_kwargs)
       File "tempest/scenario/test_stamp_pattern.py", line 139, in test_stamp_pattern
         keypair['private_key'])   
       File "tempest/scenario/test_stamp_pattern.py", line 89, in _wait_for_volume_available_on_the_system
         raise lib_exc.TimeoutException
     tempest.lib.exceptions.TimeoutException: Request timed out
     Details: None

This failure was mode is why we originally so hesitant to unskip the
test, and it doesn't look like it's better. The logstash query:

http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22_wait_for_volume_available_on_the_system%5C%22

shows 49 hits on master and stable/mitaka since the test has been
unskipped

** Affects: nova
     Importance: Undecided
         Status: New

** Affects: tempest
     Importance: Undecided
         Status: New

** Also affects: nova
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1665053

Title:
  test_stamp_pattern times out waiting for the device to show up on the
  guest

Status in OpenStack Compute (nova):
  New
Status in tempest:
  New

Bug description:
  When running test_stamp_pattern sometimes the test times out waiting
  for the device to show up on the guest after the volume attach is
  issue. An example traceback is:

       Traceback (most recent call last): 
         File "tempest/test.py", line 103, in wrapper 
           return f(self, *func_args, **func_kwargs)
         File "tempest/scenario/test_stamp_pattern.py", line 139, in test_stamp_pattern
           keypair['private_key'])   
         File "tempest/scenario/test_stamp_pattern.py", line 89, in _wait_for_volume_available_on_the_system
           raise lib_exc.TimeoutException
       tempest.lib.exceptions.TimeoutException: Request timed out
       Details: None

  This failure was mode is why we originally so hesitant to unskip the
  test, and it doesn't look like it's better. The logstash query:

  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22_wait_for_volume_available_on_the_system%5C%22

  shows 49 hits on master and stable/mitaka since the test has been
  unskipped

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