Let's have a placement update 19-35. Feature freeze is this week. We have a feature in progress (consumer types, see below) but it is not critical.

Most Important

Three main things we should probably concern ourselves with in the immediate future:

• We are currently without a PTL for Ussuri. There's some discussion about the options for dealing with this in an email thread. If you have ideas (or want to put yourself forward), please share.

• We need to work on useful documentation for the features developed this cycle.

• We need to create some cycle highlights. To help with that I've started an etherpad. If I've forgotten anything, please make additions.

What's Changed

• osc-placement 1.7.0 has been released. This adds support for managing allocation ratios via aggregates, but adding a few different commands and args for inventory manipulation.

• Work on consumer types exposed that placement needed to be first class in grenade to make sure database migrations are run. That change has merged. Until then placement was upgraded as part of nova.

Stories/Bugs

(Numbers in () are the change since the last pupdate.)

There are 24 (-1) stories in the placement group. 0 (0) are untagged. 5 (0) are bugs. 4 (0) are cleanups. 11 (-1) are rfes. 4 (0) are docs.

If you're interested in helping out with placement, those stories are good places to look.

• Placement related nova bugs not yet in progress on launchpad: 17 (0).

• Placement related nova in progress bugs on launchpad: 6 (0).

osc-placement

• https://review.opendev.org/666542 Add support for multiple member_of. There's been some useful discussion about how to achieve this, and a consensus has emerged on how to get the best results.

• --amend and --aggregate on resource provider inventory has merged and been release 1.7.0 (see above).

Main Themes

Consumer Types

Adding a type to consumers will allow them to be grouped for various purposes, including quota accounting.

• https://review.opendev.org/#/q/topic:bp/support-consumer-types I took this through to microversion and api-ref docs, so it is ready for wider review. If this doesn't make it in for Train, that's okay. The goal is to have it ready for Nova to start working with it when Nova is able.

Cleanup

Cleanup is an overarching theme related to improving documentation, performance and the maintainability of the code. The changes we are making this cycle are fairly complex to use and are fairly complex to write, so it is good that we're going to have plenty of time to clean and clarify all these things.

Performance related explorations continue:

• https://review.opendev.org/#/c/679385/ Refactor initialization of research context. This puts the code that might cause an exit earlier in the process so we can avoid useless work.

One outcome of the performance work needs to be something like a Deployment Considerations document to help people choose how to tweak their placement deployment to match their needs. The simple answer is use more web servers and more database servers, but that's often very wasteful.

Other Placement

Miscellaneous changes can be found in the usual place.

• https://review.opendev.org/676982 Merge request log and request id middlewares is worth attention. It makes sure that all log message from a single request use a global and local request id.

There are three os-traits changes being discussed. And zero os-resource-classes changes.

Other Service Users

This week (because of feature freeze) I will not be adding new finds to the list, just updating what was already on the list.

• https://review.opendev.org/662229 helm: add placement chart

• https://review.opendev.org/#/q/topic:bp/virtual-persistent-memory libvirt: report pmem namespaces resources by provider tree

• https://review.opendev.org/660852 Nova: Remove PlacementAPIConnectFailure handling from AggregateAPI

• https://review.opendev.org/670112 Nova: WIP: Add a placement audit command

• https://review.opendev.org/671793 Nova: libvirt: Start reporting PCPU inventory to placement A part of https://review.opendev.org/#/q/topic:bp/cpu-resources

• https://review.opendev.org/#/q/topic:bp/support-move-ops-with-qos-ports Nova: support move ops with qos ports

• https://review.opendev.org/667952 nova: Support filtering of hosts by forbidden aggregates

• https://review.opendev.org/670696 tempest: Add placement API methods for testing routed provider nets

• https://review.opendev.org/672678 openstack-helm: Build placement in OSH-images

• https://review.opendev.org/674129 Correct global_request_id sent to Placement

• https://review.opendev.org/#/q/topic:bp/cross-cell-resize Nova: cross cell resize

• https://review.opendev.org/674524 Nova: Scheduler translate properties to traits

• https://review.opendev.org/623558 Nova: single pass instance info fetch in host manager

• https://review.opendev.org/#/q/topic:bp/provider-config-file Nova: using provider config file for custom resource providers

End

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