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[Oleg Bondarev <obondarev@xxxxxxxxxxxx>]

Public bug reported:

This popped up during https://review.openstack.org/#/c/238478
 - when dvr serviceable port is deleted/migrated, dvr callback checks if there are any more dvr serviceable ports on the host and if there are no - removes the router from the agent on that host
 - in case dhcp port is deleted/migrated this may lead to router being deleted from dvr_snat agent, which includes snat namespace deletion

Need to check agent mode and only remove router from dvr agents running
on compute nodes in this case.

** Affects: neutron
     Importance: Undecided
     Assignee: Oleg Bondarev (obondarev)
         Status: New


** Tags: l3-dvr-backlog

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https://bugs.launchpad.net/bugs/1524908

Title:
  Router may be removed from dvr_snat agent by accident

Status in neutron:
  New

Bug description:
  This popped up during https://review.openstack.org/#/c/238478
   - when dvr serviceable port is deleted/migrated, dvr callback checks if there are any more dvr serviceable ports on the host and if there are no - removes the router from the agent on that host
   - in case dhcp port is deleted/migrated this may lead to router being deleted from dvr_snat agent, which includes snat namespace deletion

  Need to check agent mode and only remove router from dvr agents
  running on compute nodes in this case.

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