nova/releasenotes/notes/remove-core-ram-disk-filters-9510cbe5b4e295b6.yaml
Stephen Finucane 78645e61c6 Remove deprecated Core/Ram/DiskFilter
These were deprecated during Stein [1] and can now be removed, lest they
cause hassle with the PCPU work. As noted in [1], the aggregate
equivalents of same are left untouched for now.

[1] https://review.opendev.org/#/c/596502/

Change-Id: I8a0d332877fbb9794700081e7954f2501b7e7c09
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
2019-07-23 07:49:41 -07:00

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YAML

---
upgrade:
- |
The ``CoreFilter``, ``DiskFilter`` and ``RamFilter``, which were
deprecated in Stein (19.0.0), are now removed. ``VCPU``,
``DISK_GB`` and ``MEMORY_MB`` filtering is performed natively
using the Placement service. These filters have been warning
operators at startup that they conflict with proper operation of
placement and should have been disabled since approximately
Pike. If you did still have these filters enabled and were relying
on them to account for virt driver overhead (at the expense of
scheduler races and retries), see the `scheduler`_ documentation about
the topic.
.. _scheduler: https://docs.openstack.org/nova/latest/admin/configuration/schedulers.html#hypervisor-specific-considerations