Public bug reported: Since [1], when a new agent is added, the event (SEGMENT_HOST_MAPPING, AFTER_CREATE) is called. That calls the method ``auto_schedule_new_network_segments`` [2]. If the "segments" plugin is not loaded, that will raise the following exception: [3] """ ERROR neutron_lib.callbacks.manager [None req-7a8042b5-ec95-432e-a03c-3770628cc424 None None] Error during notification for neutron.plugins.ml2.plugin.DhcpAgentSchedulerDbMixin.auto_schedule_new_network_segments-2354089 segment_host_mapping, after_create: AttributeError: 'NoneType' object has no attribute 'get_segments' ERROR neutron_lib.callbacks.manager Traceback (most recent call last): ERROR neutron_lib.callbacks.manager File "/opt/stack/neutron-lib/neutron_lib/callbacks/manager.py", line 189, in _notify_loop ERROR neutron_lib.callbacks.manager callback.method(resource, event, trigger, payload=payload) ERROR neutron_lib.callbacks.manager File "/opt/stack/neutron/neutron/db/agentschedulers_db.py", line 494, in auto_schedule_new_network_segments ERROR neutron_lib.callbacks.manager segments = segment_plugin.get_segments( ERROR neutron_lib.callbacks.manager AttributeError: 'NoneType' object has no attribute 'get_segments' ERROR neutron_lib.callbacks.manager """
[1]https://review.opendev.org/q/I8112076f8acb821752941396e7aa39ecb1352ca3 [2]https://github.com/openstack/neutron/blob/e47aed1508badcf2f52e0a5ced932abf9ff73655/neutron/db/agentschedulers_db.py#L487-L509 [3]https://paste.opendev.org/show/bZRtBWdRNT8o8roOSlm1/ ** Affects: neutron Importance: Medium Assignee: Rodolfo Alonso (rodolfo-alonso-hernandez) Status: New ** Changed in: neutron Assignee: (unassigned) => Rodolfo Alonso (rodolfo-alonso-hernandez) ** Changed in: neutron Importance: Undecided => Medium -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/2102609 Title: DHCP scheduler failing when an agent is added and "segments" plugin not loaded Status in neutron: New Bug description: Since [1], when a new agent is added, the event (SEGMENT_HOST_MAPPING, AFTER_CREATE) is called. That calls the method ``auto_schedule_new_network_segments`` [2]. If the "segments" plugin is not loaded, that will raise the following exception: [3] """ ERROR neutron_lib.callbacks.manager [None req-7a8042b5-ec95-432e-a03c-3770628cc424 None None] Error during notification for neutron.plugins.ml2.plugin.DhcpAgentSchedulerDbMixin.auto_schedule_new_network_segments-2354089 segment_host_mapping, after_create: AttributeError: 'NoneType' object has no attribute 'get_segments' ERROR neutron_lib.callbacks.manager Traceback (most recent call last): ERROR neutron_lib.callbacks.manager File "/opt/stack/neutron-lib/neutron_lib/callbacks/manager.py", line 189, in _notify_loop ERROR neutron_lib.callbacks.manager callback.method(resource, event, trigger, payload=payload) ERROR neutron_lib.callbacks.manager File "/opt/stack/neutron/neutron/db/agentschedulers_db.py", line 494, in auto_schedule_new_network_segments ERROR neutron_lib.callbacks.manager segments = segment_plugin.get_segments( ERROR neutron_lib.callbacks.manager AttributeError: 'NoneType' object has no attribute 'get_segments' ERROR neutron_lib.callbacks.manager """ [1]https://review.opendev.org/q/I8112076f8acb821752941396e7aa39ecb1352ca3 [2]https://github.com/openstack/neutron/blob/e47aed1508badcf2f52e0a5ced932abf9ff73655/neutron/db/agentschedulers_db.py#L487-L509 [3]https://paste.opendev.org/show/bZRtBWdRNT8o8roOSlm1/ To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/2102609/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
