"KeepalivedManagerTestCase" tests failing during namespace deletion

[Rodolfo Alonso]

During the execution of those two test cases (test_keepalived_spawns_conflicting_pid_base_process,
test_keepalived_spawns_conflicting_pid_vrrp_subprocess), sometimes the namespace fixture fails during the deletion.

Logstash information: http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22fixtures._fixtures.timeout.TimeoutException%5C%22%20AND%20%20project%3A%5C%22openstack%2Fneutron%5C%22

Example: http://logs.openstack.org/50/670850/3/check/neutron-functional-python27/1d27dda/testr_results.html.gz

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/674820

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/674820
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=be7bb4d0f584a05d3e2725f1179ffaed6e8f449d
Submitter: Zuul
Branch: master

commit be7bb4d0f584a05d3e2725f1179ffaed6e8f449d
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Mon Aug 5 15:03:27 2019 +0000

    Kill all processes running in a namespace before deletion

    In "NamespaceFixture", before deleting the namespace, this patch
    introduces a check to first kill all processes running on it.

    Closes-Bug: #1838793

    Change-Id: I27f3db33f2e7ab685523fd2d6922177d7c9cb71b

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 15.0.0.0b1 development milestone.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/stein
Review: https://review.opendev.org/718226

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/718226
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=5af25c8591dc2042d9ee3df1379b8146a4bc8175
Submitter: Zuul
Branch: stable/stein

commit 5af25c8591dc2042d9ee3df1379b8146a4bc8175
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Mon Aug 5 15:03:27 2019 +0000

    Kill all processes running in a namespace before deletion

    In "NamespaceFixture", before deleting the namespace, this patch
    introduces a check to first kill all processes running on it.

    Closes-Bug: #1838793

    Conflicts:
        neutron/privileged/agent/linux/ip_lib.py
        neutron/tests/functional/privileged/agent/linux/test_ip_lib.py

    Change-Id: I27f3db33f2e7ab685523fd2d6922177d7c9cb71b
    (cherry picked from commit be7bb4d0f584a05d3e2725f1179ffaed6e8f449d)

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

Hello:

The issue reported in the bug is still happening: https://56ebfee43ce7e28457e8-7037332330f80d2400043986fc1e8a59.ssl.cf2.rackcdn.com/738163/21/check/neutron-functional-with-uwsgi/ae12f4e/testr_results.html

Snippet: http://paste.openstack.org/show/798506/

I'll open again this bug.

Regards.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.opendev.org/754938

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/754938
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=996aa45e1363fca4b9ffec6bb3ab9c07e42ffc8e
Submitter: Zuul
Branch: master

commit 996aa45e1363fca4b9ffec6bb3ab9c07e42ffc8e
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Wed Sep 30 14:20:23 2020 +0000

    Capture timeout exception when deleting NamespaceFixture

    Until the related bug is fixed, if the namespace created in a
    NamespaceFixture cannot be deleted due to a timeout exception,
    the exception will be dismissed and a warning message logged.

    The leftover namespace will not affect other test cases.

    Change-Id: Idb262024ca74aaa924525150e610642f493c5dc4
    Related-Bug: #1838793