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[Bug 1933234] [NEW] [Fullstack] TestLegacyL3Agent.test_mtu_update fails sometimes

 

Public bug reported:

Traceback (most recent call last):
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py", line 183, in func
    return f(self, *args, **kwargs)
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_l3_agent.py", line 322, in test_mtu_update
    common_utils.wait_until_true(lambda: ri_dev.link.mtu == mtu)
  File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 707, in wait_until_true
    raise WaitTimeout(_("Timed out after %d seconds") % timeout)
neutron.common.utils.WaitTimeout: Timed out after 60 seconds

example:
https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_c93/674044/13/check
/neutron-fullstack-with-uwsgi/c9334b7/testr_results.html

So router interface device MTU is not updated after network MTU update.

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: gate-failure

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https://bugs.launchpad.net/bugs/1933234

Title:
  [Fullstack] TestLegacyL3Agent.test_mtu_update fails sometimes

Status in neutron:
  New

Bug description:
  Traceback (most recent call last):
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py", line 183, in func
      return f(self, *args, **kwargs)
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/test_l3_agent.py", line 322, in test_mtu_update
      common_utils.wait_until_true(lambda: ri_dev.link.mtu == mtu)
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 707, in wait_until_true
      raise WaitTimeout(_("Timed out after %d seconds") % timeout)
  neutron.common.utils.WaitTimeout: Timed out after 60 seconds

  example:
  https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_c93/674044/13/check
  /neutron-fullstack-with-uwsgi/c9334b7/testr_results.html

  So router interface device MTU is not updated after network MTU
  update.

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