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Reviewed:  https://review.opendev.org/c/openstack/neutron/+/869678
Committed: https://opendev.org/openstack/neutron/commit/2495ad285614d3a77d3387a0913e1d82f4f8f61b
Submitter: "Zuul (22348)"
Branch:    master

commit 2495ad285614d3a77d3387a0913e1d82f4f8f61b
Author: elajkat <lajos.katona@xxxxxxxx>
Date:   Tue Jan 10 11:54:57 2023 +0100

    Avoid failure of get_device_details if net from cache is empty
    
    CacheBackedPluginApi.get_device_details tries to fetch net info
    from remote_resource_cache to fill the qos_policy_id for the
    device.
    Fix the case when the cache has no entry for the network.
    
    Change-Id: I1612dc4515ec0f02fbaf05d60b753485885d8c84
    Closes-bug: #1999391


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

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https://bugs.launchpad.net/bugs/1999391

Title:
  Attribute error in neutron-ovs-agent

Status in neutron:
  Fix Released

Bug description:
  I noticed in the Openvswitch agent logs in the CI jobs stacktraces
  like:

  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc [None req-024660c2-8e49-4135-8322-2ea29fac319e None None] Failed to get details for device d9cdde27-90fa-425f-a42c-f8464806457f: AttributeError: 'NoneType' object has no attribute 'qos_policy_id'
  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc Traceback (most recent call last):
  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc   File "/opt/stack/neutron/neutron/agent/rpc.py", line 321, in get_devices_details_list_and_failed_devices
  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc     self.get_device_details(context, device, agent_id, host,
  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc   File "/opt/stack/neutron/neutron/agent/rpc.py", line 355, in get_device_details
  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc     qos_network_policy_id = net.qos_policy_id
  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc AttributeError: 'NoneType' object has no attribute 'qos_policy_id'
  Dec 12 09:44:51.014564 nested-virt-ubuntu-jammy-ovh-bhs1-0032473968 neutron-openvswitch-agent[57685]: ERROR neutron.agent.rpc 

  Example of such error:
  https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_d8f/860270/8/check/neutron-
  tempest-plugin-openvswitch/d8f61ec/controller/logs/screen-q-agt.txt

  It don't cause job failure but should be handled in better way in the
  code to avoid ugly stacktraces.

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