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[OpenStack Infra <2018375@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/c/openstack/nova/+/882160
Committed: https://opendev.org/openstack/nova/commit/6d7bd6a03446d5227d515b2b4c0da632ef4aa4a1
Submitter: "Zuul (22348)"
Branch:    master

commit 6d7bd6a03446d5227d515b2b4c0da632ef4aa4a1
Author: Sylvain Bauza <sbauza@xxxxxxxxxx>
Date:   Wed May 3 17:00:14 2023 +0200

    Fix get_segments_id with subnets without segment_id
    
    Unfortunatly when we merged Ie166f3b51fddeaf916cda7c5ac34bbcdda0fd17a we
    forgot that subnets can have no segment_id field.
    
    Change-Id: Idb35b7e3c69fe8efe498abe4ebcc6cad8918c4ed
    Closes-Bug: #2018375


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/2018375

Title:
  routed networks prefilter exception due to subnets can have no
  segments

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Since some subnets can not have some related segments, the
  subnet.segment_uuid value can be None but unfortunately, the
  routed_networks_filter prefilter doesn't support it.

  
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server [req-ed1b01c5-01bd-493f-8b56-b4cb21e29f59 e416974adb7a44fd910a40b208d28e9f
  d7b8b3323ea64f35adeec903c340a19e - default default] Exception during message handling: KeyError: 'segment_id'
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/oslo_messaging/rpc/server.py", line 165, in
  _process_incoming
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/oslo_messaging/rpc/dispatcher.py", line 309, in
  dispatch
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/oslo_messaging/rpc/dispatcher.py", line 229, in
  _do_dispatch
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     return func(*args, **kwargs)
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/nova/scheduler/manager.py", line 140, in
  select_destinations
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     request_filter.process_reqspec(ctxt, spec_obj)
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/nova/scheduler/request_filter.py", line 387, in
  process_reqspec
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     filter(ctxt, request_spec)
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/nova/scheduler/request_filter.py", line 41, in
  wrapper
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     ran = fn(ctxt, request_spec)
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/nova/scheduler/request_filter.py", line 348, in
  routed_networks_filter
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     aggregates = utils.get_aggregates_for_routed_network(
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/nova/scheduler/utils.py", line 1390, in
  get_aggregates_for_routed_network
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     segment_ids = network_api.get_segment_ids_for_network(
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/nova/network/neutron.py", line 3610, in
  get_segment_ids_for_network
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     return [subnet['segment_id'] for subnet in subnets
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server   File "/usr/lib/python3.9/site-packages/nova/network/neutron.py", line 3611, in <listcomp>
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server     if subnet['segment_id'] is not None]
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server KeyError: 'segment_id'
  2023-05-02 22:38:10.382 12 ERROR oslo_messaging.rpc.server
  2023-05-02 22:38:15.178 11 DEBUG nova.scheduler.manager [req-798de5ac-273e-40fd-abce-36e701488046 e416974adb7a44fd910a40b208d28e9f
  d7b8b3323ea64f35adeec903c340a19e - default default] Starting to schedule for instances: ['412ca82a-06a4-40d9-b12d-08c56a78c5a9'] select_destinations
  /usr/lib/python3.9/site-packages/nova/scheduler/manager.py:124

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