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[Kevin Benton <1551958@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Both delete_network and delete_subnet in ML2 use a while True to
continuously attempt to delete a network or subnet. This logic is fine
assuming its DB lookups are fresh on each iteration to get the latest
state. However, it fails when these functions are called inside of
another transaction because its lookups will get stale data and continue
to loop over that data forever.

Thanks to Armando who spotted it:
http://paste.openstack.org/show/488834/

** Affects: neutron
     Importance: Undecided
     Assignee: Kevin Benton (kevinbenton)
         Status: In Progress

** Changed in: neutron
     Assignee: (unassigned) => Kevin Benton (kevinbenton)

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https://bugs.launchpad.net/bugs/1551958

Title:
  ML2 delete_network can loop infinitely if called in transaction

Status in neutron:
  In Progress

Bug description:
  Both delete_network and delete_subnet in ML2 use a while True to
  continuously attempt to delete a network or subnet. This logic is fine
  assuming its DB lookups are fresh on each iteration to get the latest
  state. However, it fails when these functions are called inside of
  another transaction because its lookups will get stale data and
  continue to loop over that data forever.

  Thanks to Armando who spotted it:
  http://paste.openstack.org/show/488834/

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