+1 on keeping moving forward with it. that's important for future nova work, as
well as our deploy steps work.
On 01/22/2018 10:11 PM, Mark Goddard wrote:
The node traits feature [1] is an essential priority for ironic in Queens, and
is an important step in the continuing evolution of scheduling enabled by the
placement API. Traits will allow us to move away from capability-based
scheduling. Capabilities have several limitations for scheduling including
depending on filters in nova-scheduler rather than allowing placement to select
matching hosts. Several upcoming features depend on traits [2].
Landing node traits late in the cycle will lead to less time being available for
testing, with a risk that the feature is release with defects. There are changes
at most major levels in the code except the drivers, but these are for the most
part fairly isolated from existing code. The current issues with the grenade CI
job mean that upgrade code paths are not being exercised frequently, and could
lead to additional test/bug fix load on the team later in the cycle. The node
traits code patches are all in review [3], and are now generally getting
positive reviews or minor negative feedback.
rloo and TheJulia have kindly offered to review during the FFE window.
[1]
http://specs.openstack.org/openstack/ironic-specs/specs/not-implemented/node-traits.html
[2]
https://review.openstack.org/#/c/504952/7/specs/approved/config-template-traits.rst
[3] https://review.openstack.org/#/q/topic:bug/1722194+(status:open)
Thanks,
Mark (mgoddard)
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