Reviewed: https://review.openstack.org/368631
Committed:
https://git.openstack.org/cgit/openstack/neutron/commit/?id=dfbc809169da9af7dfc2421244d188caadcada05
Submitter: Jenkins
Branch: master
commit dfbc809169da9af7dfc2421244d188caadcada05
Author: Kevin Benton <ke...@benton.pub>
Date: Fri Sep 9 05:12:03 2016 -0700
Use singleton for Nova notifier
By adding a singleton getter method and using it in the places
that use nova notifiers, we ensure that only one object exists
so all callers share the same batching queues and the sqlalchemy
events will only be fired once.
Change-Id: I89752d9c69feb578f0294339aae1a5cf51ec124b
Closes-Bug: #1622503
** Changed in: neutron
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1622503
Title:
nova notifier called 3 times for each port
Status in neutron:
Fix Released
Bug description:
The nova notifier is being called 3 different times for each port
event due to multiple instantiations of db_base_plugin_v2 each
constructing a new notifier and subscribing it to sqlalchemy events.
This can be seen in the logs on each event:
2016-09-10 01:25:52.375 14798 DEBUG neutron.notifiers.nova
[req-35cf2ca3-edaa-4e88-9551-c106ab84a031 neutron -] Ignoring state change
previous_port_status: DOWN current_port_status: DOWN port_id
92aa19ff-c9c9-4771-ad68-ebe1910ba3dc record_port_status_changed
/opt/stack/new/neutron/neutron/notifiers/nova.py:223
2016-09-10 01:25:52.376 14798 DEBUG neutron.notifiers.nova
[req-35cf2ca3-edaa-4e88-9551-c106ab84a031 neutron -] Ignoring state change
previous_port_status: DOWN current_port_status: DOWN port_id
92aa19ff-c9c9-4771-ad68-ebe1910ba3dc record_port_status_changed
/opt/stack/new/neutron/neutron/notifiers/nova.py:223
2016-09-10 01:25:52.376 14798 DEBUG neutron.notifiers.nova
[req-35cf2ca3-edaa-4e88-9551-c106ab84a031 neutron -] Ignoring state change
previous_port_status: DOWN current_port_status: DOWN port_id
92aa19ff-c9c9-4771-ad68-ebe1910ba3dc record_port_status_changed
/opt/stack/new/neutron/neutron/notifiers/nova.py:223
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