Reviewed: https://review.openstack.org/313177 Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=cc9ce5189db4f3300c38b36dd28a98d64ca7a1fe Submitter: Jenkins Branch: master
commit cc9ce5189db4f3300c38b36dd28a98d64ca7a1fe Author: Arun Sriraman <[email protected]> Date: Thu May 5 22:18:24 2016 +0000 Changing arping command execute to accept 1 as extra OK code Connecting any network to a router causes l3-agent to send out gratuitous ARP packets that do not require a response. On Ubuntu 14.04 sometimes this command returns 1, which causes it to falsely report arping command failure. This is now added to the extra OK codes. Change-Id: I6299e936d4e4e7fd7497d23224e7abf605a99c15 Closes-bug: #1578842 ** 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/1578842 Title: gratuitous arping causes exception filling up logs with errors on Ubuntu14.04 Status in neutron: Fix Released Bug description: Connecting an external network to a router causes l3-agent to send out gratuitous arp packets to to the external network gateway IP in order to pre-populate the mac table without expecting a response. Similar behavior when associating floating IPs. Arping utility on CentOS7.2 returns 0 when no response but returns 1 on Ubuntu14.04 which causes an exception and thus a Traceback in the log files. Changing arping command call to not check return code status fixes this issue and that is the proposed fix. Pre-conditions: Router with external network attached. Step-by-step reproduction steps: 1) Create a router 2) Attach an external network as gateway. 3) Attach a tenant network to the router. 4) Associate a Floating IP to a VM instance powered on in that tenant network. Expected output: No errors in logs. Seen on CentOS7.2 Actual output: Traceback in l3 log. Seen on Ubuntu14.04 http://paste.openstack.org/show/496284/ Version: Openstack Liberty (Tag: 7.0.2). Ubuntu14.04. uname -a Linux ubuntu01 4.2.0-27-generic #32~14.04.1-Ubuntu SMP Fri Jan 22 15:32:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Services running: l3-agent in dvr mode, ovs-agent, dhcp-agent, nova- compute. Perceived Severity: Medium (Causes issues with active monitoring) To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1578842/+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
