openstack/nova
Code Issues Proposed changes

Remove ram/disk sched filters from default list

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Since we now use placement to verify basic CPU/RAM/disk resources,
we should default to disabling the equivalent scheduler filters.

Oddly enough, CoreFilter was already disabled so now also disable
RamFilter and DiskFilter.

Closes-Bug: #1709328
Change-Id: Ibe1cee1cb2642f61a8d6bf9c3f6bbee4f2c2f414
This commit is contained in:
Chris Friesen 2017-08-08 10:31:54 -06:00 committed by Matt Riedemann
parent 4dc7682e79
commit 2fe96819c2
2 changed files with 11 additions and 4 deletions
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5
nova/conf/scheduler.py
View File

@ -248,8 +248,6 @@ Related options:
default=[
"RetryFilter",
"AvailabilityZoneFilter",
"RamFilter",
"DiskFilter",
"ComputeFilter",
"ComputeCapabilitiesFilter",
"ImagePropertiesFilter",
@ -262,8 +260,7 @@ Related options:
Filters that the scheduler will use.
An ordered list of filter class names that will be used for filtering
hosts. Ignore the word 'default' in the name of this option: these filters will
*always* be applied, and they will be applied in the order they are listed so
hosts. These filters will be applied in the order they are listed so
place your most restrictive filters first to make the filtering process more
efficient.

10
releasenotes/notes/trim-default-sched-filters-e70de3bb4c7b1a1b.yaml Normal file
View File

@ -0,0 +1,10 @@
---
upgrade:
- |
Since we now use Placement to verify basic CPU/RAM/disk resources when
using the FilterScheduler, the ``RamFilter`` and ``DiskFilter`` entries are
being removed from the default value for the ``enabled_filters`` config
option in the ``[filter_scheduler]`` group. If you are overriding this
option, you probably should remove them from your version. If you are
using CachingScheduler you may wish to enable these filters as we will
not use Placement in that case.