yahoo-eng-team team mailing list archive

[OpenStack Infra <1627691@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/376010
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=98de72e9f32090a93c9c1b6f45cc0f2385c27792
Submitter: Jenkins
Branch:    master

commit 98de72e9f32090a93c9c1b6f45cc0f2385c27792
Author: Kevin Benton <kevin@xxxxxxxxxx>
Date:   Sat Sep 24 01:53:38 2016 -0700

    Don't try to delete non-existent namespace
    
    The namespace in the DHCP agent may already have been
    deleted by a previous event when _destroy_namespace_and_port
    is called (e.g. all subnets deleted from network and then network
    is deleted). To avoid log errors every time this happens, check
    for the existence of the namespace before trying to delete it.
    
    Closes-Bug: #1627691
    Change-Id: I204ba7a0de056f13af505541d67f0acdd70fd54d


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

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1627691

Title:
  non-existent namespace errors in DHCP agent

Status in neutron:
  Fix Released

Bug description:
  The DHCP agent log gets sprinkled with ERROR logs when a call to
  disable DHCP for a network happens twice. This can happen if an
  agent's port is deleted and then a delete network call for its network
  happens before it resyncs (both events call 'disable' on the driver).

  
  http://logs.openstack.org/91/375791/9/check/gate-tempest-dsvm-neutron-dvr-ubuntu-xenial/16e9b8f/logs/screen-q-dhcp.txt.gz?level=TRACE

  2016-09-25 12:56:37.463 15334 ERROR neutron.agent.linux.utils [req-
  3882fc97-98a1-410e-8638-4de87841e5ee - -] Exit code: 1; Stdin: ;
  Stdout: ; Stderr: Cannot remove namespace file "/var/run/netns/qdhcp-
  3e0f2433-c53d-43e4-8c1e-5c6b863ad693": No such file or directory

  2016-09-25 12:56:37.463 15334 WARNING neutron.agent.linux.dhcp [req-3882fc97-98a1-410e-8638-4de87841e5ee - -] Failed trying to delete namespace: qdhcp-3e0f2433-c53d-43e4-8c1e-5c6b863ad693
  2016-09-25 12:57:24.774 15334 ERROR neutron.agent.linux.utils [req-113e268a-f42d-4a45-8e4e-e5530a14f43f - -] Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot remove namespace file "/var/run/netns/qdhcp-82696d3a-3ef9-4744-a685-cfd38730b541": No such file or directory

  2016-09-25 12:57:24.774 15334 WARNING neutron.agent.linux.dhcp [req-113e268a-f42d-4a45-8e4e-e5530a14f43f - -] Failed trying to delete namespace: qdhcp-82696d3a-3ef9-4744-a685-cfd38730b541
  2016-09-25 12:57:32.672 15334 ERROR neutron.agent.linux.utils [req-702f653b-f69b-485b-917f-9231622a5fae - -] Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot remove namespace file "/var/run/netns/qdhcp-4a536dcd-5047-4c39-91cb-30ab11cb3d73": No such file or directory

  2016-09-25 12:57:32.673 15334 WARNING neutron.agent.linux.dhcp [req-
  702f653b-f69b-485b-917f-9231622a5fae - -] Failed trying to delete
  namespace: qdhcp-4a536dcd-5047-4c39-91cb-30ab11cb3d73

To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1627691/+subscriptions