yahoo-eng-team team mailing list archive

[Rodolfo Alonso <1933517@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When live migrating network sensitive VMs, the communication is broken.

This is similar to [1] but in OVN the vif-plugged events are directly
controller by the Neutron server, not by the OVS/DHCP agents.

The problem lies in when the destination chassis creates the needed OF
rules for the destination VM port. Same as in OVS, the VM port is
created when the instance is unpaused. At this moment the VM continues
sending packets through the interface but OVN didn't finish the
configuration.

Related BZs:
- OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1903653
- OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1872937
- OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1966512

[1]https://bugs.launchpad.net/neutron/+bug/1901707

** Affects: neutron
     Importance: Medium
     Assignee: Rodolfo Alonso (rodolfo-alonso-hernandez)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Rodolfo Alonso (rodolfo-alonso-hernandez)

** Changed in: neutron
   Importance: Undecided => Low

** Changed in: neutron
   Importance: Low => Medium

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1933517

Title:
  [OVN] Live migration of network sensitive VMs breaks communication

Status in neutron:
  New

Bug description:
  When live migrating network sensitive VMs, the communication is
  broken.

  This is similar to [1] but in OVN the vif-plugged events are directly
  controller by the Neutron server, not by the OVS/DHCP agents.

  The problem lies in when the destination chassis creates the needed OF
  rules for the destination VM port. Same as in OVS, the VM port is
  created when the instance is unpaused. At this moment the VM continues
  sending packets through the interface but OVN didn't finish the
  configuration.

  Related BZs:
  - OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1903653
  - OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1872937
  - OSP16.1: https://bugzilla.redhat.com/show_bug.cgi?id=1966512

  [1]https://bugs.launchpad.net/neutron/+bug/1901707

To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1933517/+subscriptions