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[LIU Yulong <yulong@xxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1450375 ***
    https://bugs.launchpad.net/bugs/1450375

** This bug is no longer a duplicate of bug 1571097
   unable to delete lbaasv2 health monitor if its listener deleted
** This bug has been marked a duplicate of bug 1450375
   cannot delete v2 healthmonitor if the hm-associated-pool was deleted first

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https://bugs.launchpad.net/bugs/1526964

Title:
  Can delete lbaas-pool with lbaas-hm attached

Status in neutron:
  Confirmed

Bug description:
  Using the lbaas v2 resources, I created a loadbalancer, listener,
  pool, and healthmonitor, all attached to each other as expected. Next
  I deleted the pool, which I wouldn't expect to work since there is a
  healthmonitor attached to it, yet it worked successfully. Now I am
  unable to do anything with the healthmonitor that is remaining.

  I tried deleting the healthmonitor, only to get this error:
  $ neutron lbaas-healthmonitor-delete d7257837-7b76-4f70-836d-97dbfa7d5a4a
  Request Failed: internal server error while processing your request.
  $

  Looking through the logs I grabbed this stack trace http://paste.openstack.org/show/482123/
  The healthmonitor is unable to locate the pool it was attached to, since it has been deleted.

  Looking through the v1 code, it seems there was a check to make sure the pool was able to be deleted: https://github.com/openstack/neutron-lbaas/blob/master/neutron_lbaas/db/loadbalancer/loadbalancer_db.py#L619
  This check does not exist in the v2 code however:
  https://github.com/openstack/neutron-lbaas/blob/master/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py#L468

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