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[Boyvinall <1890027@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

If DHCP bulk reload is enabled, I get the following crash in the bulk
reload loop when deleting a network:

Running command: 'neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini'
+ exec neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 461, in fire_timers
    timer()
  File "/usr/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
    cb(*args, **kw)
  File "/usr/lib/python3.6/site-packages/neutron/agent/dhcp/agent.py", line 161, in _reload_bulk_allocations
    self.call_driver('bulk_reload_allocations', network)
  File "/usr/lib/python3.6/site-packages/osprofiler/profiler.py", line 160, in wrapper
    result = f(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/neutron/agent/dhcp/agent.py", line 167, in call_driver
    {'net': network.id, 'action': action})
AttributeError: 'NoneType' object has no attribute 'id'
+ sudo -E kolla_set_configs

Line numbers might differ slightly due to my patch for
https://bugs.launchpad.net/neutron/+bug/1886969 but the issue is present
without my change.

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1890027

Title:
  dhcp agent crashes when deleting network if bulk reload enabled

Status in neutron:
  New

Bug description:
  If DHCP bulk reload is enabled, I get the following crash in the bulk
  reload loop when deleting a network:

  Running command: 'neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini'
  + exec neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini
  Traceback (most recent call last):
    File "/usr/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 461, in fire_timers
      timer()
    File "/usr/lib/python3.6/site-packages/eventlet/hubs/timer.py", line 59, in __call__
      cb(*args, **kw)
    File "/usr/lib/python3.6/site-packages/neutron/agent/dhcp/agent.py", line 161, in _reload_bulk_allocations
      self.call_driver('bulk_reload_allocations', network)
    File "/usr/lib/python3.6/site-packages/osprofiler/profiler.py", line 160, in wrapper
      result = f(*args, **kwargs)
    File "/usr/lib/python3.6/site-packages/neutron/agent/dhcp/agent.py", line 167, in call_driver
      {'net': network.id, 'action': action})
  AttributeError: 'NoneType' object has no attribute 'id'
  + sudo -E kolla_set_configs

  Line numbers might differ slightly due to my patch for
  https://bugs.launchpad.net/neutron/+bug/1886969 but the issue is
  present without my change.

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