[config R2.20 build 45] Traceback in delete operation

[Prakash Bailkeri]

Duplicate delete operation may result in Internal server error instead of 404 error.

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bottle.py", line 764, in _handle
    return route.call(**args)
  File "/usr/lib/python2.7/dist-packages/bottle.py", line 1625, in wrapper
    rv = callback(*a, **ka)
  File "/usr/lib/python2.7/dist-packages/bottle.py", line 1575, in wrapper
    rv = callback(*a, **ka)
  File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/vnc_cfg_api_server.py", line 535, in handler_trap_exception
    response = handler(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/vnc_cfg_api_server/gen/vnc_api_server_gen.py", line 19833, in virtual_machine_interface_http_delete
    parent_type = read_result.get('parent_type', None)
AttributeError: 'str' object has no attribute 'get'

dbe_read returns error (read_result = 'Unknown id: 7f12a64f-9176-4345-adad-2551cc6005fe'). Trying to parse this result causes the exception.

1. It is possible due to race condition in duplicate delete (concurrent requests)
2. delayed dbe_delete_notification or no dbe_delete_notification (which causes uuid_to_obj_type cache to still contain deleted object)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/11463
Submitter: Prakash Bailkeri (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/11464
Submitter: Prakash Bailkeri (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/11463
Committed: http://github.org/Juniper/contrail-generateDS/commit/bf2adb827d883e4ed10b00785f017751d42255eb
Submitter: Zuul
Branch: R2.20

commit bf2adb827d883e4ed10b00785f017751d42255eb
Author: Prakash Bailkeri <email address hidden>
Date: Wed Jun 10 10:37:11 2015 -0700

Parse the read_result for NoIdError and return 404 in case dbe_read fails with
Unknown Id error

Change-Id: I701f4beb7bdcb818b7c83992276c8a5554aa207f
Closes-bug: #1463923

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/11464
Committed: http://github.org/Juniper/contrail-generateDS/commit/31a31b07af54689c901693a91d68d2e2ba40d6b1
Submitter: Zuul
Branch: master

commit 31a31b07af54689c901693a91d68d2e2ba40d6b1
Author: Prakash Bailkeri <email address hidden>
Date: Wed Jun 10 10:37:11 2015 -0700

Parse the read_result for NoIdError and return 404 in case dbe_read fails with
Unknown Id error

Change-Id: I701f4beb7bdcb818b7c83992276c8a5554aa207f
Closes-bug: #1463923