ed613aa66f
The default config `both` means that both the legacy and the versioned notifications are emitted. This was selected as default in the past when we thought that this will help the adoption of the versioned interface while we worked on to make that new interface in feature parity with the legacy. Even though the versioned notification interface is in feature parity with the legacy interface since Stein the projects consuming nova notifications do not have the resources to switch to the new interface. In the other hand having `both` as a default in an environtment where only the legacy notifications are consumed causes performance issues in the message bus hence the bug #1805659. The original plan was that we set the default to `versioned` when the interface reaches feature parity but as major consumers are not ready to switch we cannot do that. So the only option left is to set the default to `unversioned`. Related devstack patch: https://review.opendev.org/#/c/662849/ Closes-Bug: #1805659 Change-Id: I72faa356afffb7a079a9ce86fed1b463773a0507
12 lines
549 B
YAML
12 lines
549 B
YAML
---
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upgrade:
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- |
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To resolve `bug 1805659`_ the default value of
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``[notifications]/notification_format`` is changed from ``both`` to
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``unversioned``. For more information see the `documentation of the config
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option`_. If you are using versioned notifications, you will need to adjust
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your config to ``versioned``"
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.. _`bug 1805659`: https://bugs.launchpad.net/nova/+bug/1805659
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.. _`documentation of the config option`: https://docs.openstack.org/nova/latest/configuration/config.html#notifications.notification_format
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