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Bug 1693372 - [RFE] Add ability to collocate pinned and non-pinned instances on the same host(s)
Summary: [RFE] Add ability to collocate pinned and non-pinned instances on the same ho...
Keywords:
Status: NEW
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: 16.0 (T)
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
: ---
Assignee: nova-maint
QA Contact: nova-maint
URL:
Whiteboard:
Depends On:
Blocks: 1693377
TreeView+ depends on / blocked
 
Reported: 2019-03-27 16:45 UTC by Stephen Finucane
Modified: 2019-04-12 05:42 UTC (History)
9 users (show)

Fixed In Version:
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System ID Priority Status Summary Last Updated
OpenStack gerrit 555081 None None None 2019-04-02 14:36:25 UTC

Description Stephen Finucane 2019-03-27 16:45:07 UTC
Description of problem:

Currently, instances with pinned CPUs ('hw:cpu_policy=dedicated') cannot be placed on the same host(s) as those without ('hw:cpu_policy=shared'). Operators must use host aggregates to group hosts into those that will handle pinned CPUs and those that will handle unpinned CPUs. This is suboptimal, especially when considering edge use cases where the amount of nodes available may be limited. We should be able to collocate these instances and avoid the need to use host aggregates.


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