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[Krzysztof Klimonda <kklimonda@xxxxxxxxxxxxxxxxxxxxx>]

Public bug reported:

OpenStack version: stein (8.0.0, kolla build 20190417)

While deleting routers as part of the tempest run, the following exception has been logged:
```
Error while deleting router ba955d36-2ac4-47b8-aae2-3bf4a2fd2f79: TypeError: unhashable type: 'dict'
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent Traceback (most recent call last):
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 463, in _safe_router_removed
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     self.l3_ext_manager.delete_router(self.context, ri.router)
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron/agent/l3/l3_agent_extensions_manager.py", line 66, in delete_router
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     extension.obj.delete_router(context, data)
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron_vpnaas/services/vpn/agent.py", line 80, in delete_router
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     device_driver.destroy_router(data)
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron_vpnaas/services/vpn/device_drivers/ipsec.py", line 1005, in destroy_router
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     self.destroy_process(process_id)
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron_vpnaas/services/vpn/device_drivers/ipsec.py", line 991, in destroy_process
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     if process_id in self.processes:
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent TypeError: unhashable type: 'dict'
2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent
```

Looking at methods in the traceback, call to
`extension.obj.delete_router` has been updated in commit
4bb78e8c215d24cd2fc9168e7bfbb47ceb89de3e to pass a RouterInfo object
instead of the router_id, but neutron-vpnaas has never been updated
accordingly.

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1825291

Title:
  TypeError: unhashable type: 'dict' in neutron-vpnaas while deleting
  routers

Status in neutron:
  New

Bug description:
  OpenStack version: stein (8.0.0, kolla build 20190417)

  While deleting routers as part of the tempest run, the following exception has been logged:
  ```
  Error while deleting router ba955d36-2ac4-47b8-aae2-3bf4a2fd2f79: TypeError: unhashable type: 'dict'
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent Traceback (most recent call last):
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 463, in _safe_router_removed
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     self.l3_ext_manager.delete_router(self.context, ri.router)
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron/agent/l3/l3_agent_extensions_manager.py", line 66, in delete_router
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     extension.obj.delete_router(context, data)
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron_vpnaas/services/vpn/agent.py", line 80, in delete_router
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     device_driver.destroy_router(data)
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron_vpnaas/services/vpn/device_drivers/ipsec.py", line 1005, in destroy_router
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     self.destroy_process(process_id)
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent   File "/var/lib/kolla/venv/local/lib/python2.7/site-packages/neutron_vpnaas/services/vpn/device_drivers/ipsec.py", line 991, in destroy_process
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent     if process_id in self.processes:
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent TypeError: unhashable type: 'dict'
  2019-04-17 21:25:33.512 36 ERROR neutron.agent.l3.agent
  ```

  Looking at methods in the traceback, call to
  `extension.obj.delete_router` has been updated in commit
  4bb78e8c215d24cd2fc9168e7bfbb47ceb89de3e to pass a RouterInfo object
  instead of the router_id, but neutron-vpnaas has never been updated
  accordingly.

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