** Description changed: [Impact] Stumbled upon an issue where removing a DVR HA router interface renders all other subnets connected to that router to stop routing. VMs can't reach the HA port (IP) of the router (ping). Worked around this by: openstack router set --disabled <ROUTER> openstack router set --enable <ROUTER> This has happened more than once in the current deployment - cloud:bionic-stein - neutron 2:14.0.4-0ubuntu1~cloud1 [Test Case] - TBD + 1. Reproducing the issue + + 1a. Deploy openstack using stsstack-bundles + https://launchpad.net/stsstack-bundles + + 1b. Run the test script lp1892405_reproducer from comment #10 + + The script does the following (Detailed steps in comment #4) + - Create 3 projects P1, P2, P3 + - Create a router and network in each project, say R1,R2,R3 and + N1,N2,N3 + - Cross-connect networks by adding ports to router. + - Launch VMs on N1, N2 (Ensure VMs are landed on 2 different compute + nodes) + - ping from VM1 -> VM2 should be successful + - Detach leg from N1 -> N3 + - Check for any packet loss during ping from VM1 -> VM2 + + The script output shows the ping output from VM1 -> VM2 and there will + be packet loss + + 2. Install the package with fixed code + + 3. Confirm bug have been fixed + + 3a. Cleanup of projects P1,P2,P3 and associated resources created in 1b + Re-enable the hypervisor which is disabled as part of 1b script. + Command to enable: + openstack compute service set --disable <hypervisor hostname> nova- + compute + + 3b. Re-run the script 1b + + The script output shows the ping output from VM1 -> VM2 and there + should not be any packet loss [Where problems could occur] - TBD + + Upstream CI ran all the functional and tempest test cases that involves deletion of DVR port connected to router which should cover the scenarios involving the code change. + Installation of new package will result in restart of neutron-openvswitch service and will take a few milliseconds to repopulate all the OVS flows.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1892405 Title: Removing router interface causes router to stop routing between all To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-archive/+bug/1892405/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
