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[Carl Baldwin <carl.baldwin@xxxxxx>]

Public bug reported:

The code recently added https://review.openstack.org/#/c/30988/ very
nicely cleans out stale routers assuming that
self.conf.router_delete_namespaces is true.

The problem is that automatic namespace deletion is still a bit unstable
because of problems with the kernel and the iproute utility.  So, many
users may not have self.conf.router_delete_namespaces set to True.  In
this case, all of the advantages added by the above mentioned patch
don't help us.

The problem arises if a router gets deleted or moved to another agent
while the L3 agent is down.  When the L3 agent comes back up, it will
not touch the router and the router will continue to function as if it
were never deleted.

** Affects: neutron
     Importance: Undecided
     Assignee: Carl Baldwin (carl-baldwin)
         Status: In Progress

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https://bugs.launchpad.net/bugs/1301042

Title:
  Routers may never be torn down if router_delete_namespaces is False

Status in OpenStack Neutron (virtual network service):
  In Progress

Bug description:
  The code recently added https://review.openstack.org/#/c/30988/ very
  nicely cleans out stale routers assuming that
  self.conf.router_delete_namespaces is true.

  The problem is that automatic namespace deletion is still a bit
  unstable because of problems with the kernel and the iproute utility.
  So, many users may not have self.conf.router_delete_namespaces set to
  True.  In this case, all of the advantages added by the above
  mentioned patch don't help us.

  The problem arises if a router gets deleted or moved to another agent
  while the L3 agent is down.  When the L3 agent comes back up, it will
  not touch the router and the router will continue to function as if it
  were never deleted.

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