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[Assaf Muller <amuller@xxxxxxxxxx>]

Public bug reported:

After https://review.openstack.org/#/c/277813/, we started seeing
failures in the functional job. The root cause is that the patch is
using self.addOnException, and it looks like if the method that is
invoked on exception itself raises an exception, testr freaks out and
fails the test. I think that in this particular case, the method
(collect_debug_info) may be executed out of order, after test clean ups
already occur so namespaces fixtures are already cleaned up.

Example trace:
http://paste.openstack.org/show/487818/

Failure rate seems to be hovering around 80% in the last couple of days.

** Affects: neutron
     Importance: Critical
     Assignee: Assaf Muller (amuller)
         Status: Confirmed


** Tags: functional-tests gate-failure

** Changed in: neutron
     Assignee: (unassigned) => Assaf Muller (amuller)

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https://bugs.launchpad.net/bugs/1548547

Title:
  Functional tests failing with FAIL: process-returncode

Status in neutron:
  Confirmed

Bug description:
  After https://review.openstack.org/#/c/277813/, we started seeing
  failures in the functional job. The root cause is that the patch is
  using self.addOnException, and it looks like if the method that is
  invoked on exception itself raises an exception, testr freaks out and
  fails the test. I think that in this particular case, the method
  (collect_debug_info) may be executed out of order, after test clean
  ups already occur so namespaces fixtures are already cleaned up.

  Example trace:
  http://paste.openstack.org/show/487818/

  Failure rate seems to be hovering around 80% in the last couple of
  days.

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