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[OpenStack Infra <1961173@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/c/openstack/neutron/+/829659
Committed: https://opendev.org/openstack/neutron/commit/8217979fdcbab1304f3102419945ee7dc9931d51
Submitter: "Zuul (22348)"
Branch:    master

commit 8217979fdcbab1304f3102419945ee7dc9931d51
Author: Oleg Bondarev <oleg.bondarev@xxxxxxxxxx>
Date:   Thu Feb 17 11:21:21 2022 +0300

    [fullstack] use noop fw driver for Local IP conntrack test
    
    iptables_hybrid lacks isolation between hosts in fullstack tests.
    Since LocalIPTestCase uses 2 hosts we better set noop fw driver
    for conntrack scenario to avoid connectivity issues.
    
    Closes-Bug: #1961173
    Change-Id: Ib3238142daa0becbd7034b2faa66c6a9cf668d7e


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1961173

Title:
  [fullstack] test_vm_is_accessible_by_local_ip fails  sometimes

Status in neutron:
  Fix Released

Bug description:
  Happens for "with_conntrack_rules" scenario.
  Examples:

  -
  https://b4c71a9e78e49e1ca534-33cd363c3f72485dda255154bdda0fc8.ssl.cf1.rackcdn.com/829247/2/check/neutron-
  fullstack-with-uwsgi/cdc875c/testr_results.html

  -
  https://1c11d883c451b6b39e08-76fe6537709af1be557ea31f3d630d58.ssl.cf5.rackcdn.com/829022/3/check/neutron-
  fullstack-with-uwsgi/0243e12/testr_results.html

  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_local_ip.py", line 111, in test_vm_is_accessible_by_local_ip
      vms.ping_all()
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/fullstack/resources/machine.py", line 46, in ping_all
      vm_1.block_until_ping(vm_2.ip)
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/common/machine_fixtures.py", line 67, in block_until_ping
      utils.wait_until_true(
    File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 722, in wait_until_true
      raise exception
  neutron.tests.common.machine_fixtures.FakeMachineException: No ICMP reply obtained from IP address 10.0.0.38

  The test fails even before Local IP creation - on initial VMs
  connectivity check

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