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[Bug 1366890] Re: Setting admin_state_up=False on a HA port causes split brain in HA routers

 

** Changed in: neutron
       Status: New => Won't Fix

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

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https://bugs.launchpad.net/bugs/1366890

Title:
  Setting admin_state_up=False on a HA port causes split brain in HA
  routers

Status in OpenStack Neutron (virtual network service):
  Won't Fix

Bug description:
  1) Create a HA router on a setup with two L3 agents
  2) Find out who the master is
  3) Find out what is the HA port used by the master instance of the router
  4) Set it to admin state down

  The master instance won't be able to send VRRP messages, but since the
  tap device in the router namespace is still up, keepalive doesn't
  transition to backup or fault. It remains in the master state. The
  backup will stop receiving VRRP messages and will transition to master
  as well.

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References