Public bug reported: 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 ** Affects: neutron Importance: Undecided Assignee: Kevin Benton (kevinbenton) Status: In Progress ** Changed in: neutron Milestone: None => newton-rc2 -- 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: In Progress 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 -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
