[placement] update 19-27
cdent+os at anticdent.org
Fri Jul 12 10:00:01 UTC 2019
Pupdate 19-27 is here and now.
# Most Important
Of the features we planned to do this cycle, all are done save one:
consumer types (in progress, see below). This means we have a good
opportunity to focus on documentation, performance, and improving
the codebase for maintainability. You do not need permission to work
on these things. If you find a problem and know how to fix it, fix
it. If you are not sure about the solution, please discuss it on
this email list or in the `#openstack-placement` IRC channel.
This also means we're in a good position to help review changes that
use placement in other projects.
The Foundation needs to know how much, if any, Placement time will
be needed in Shanghai. I started a
# What's Changed
* The `same_subtree` query parameter has merged as [microversion
This enables a form of nested provider affinity: "these providers
must all share the same ancestor".
* The placement projects have been updated (pending merge) to match
the [Python 3 test runtimes for
community wide goal. Since the projects have been Python3-enabled
from the start, this was mostly a matter of aligning configurations
with community-wide norms. When Python 3.8 becomes available we
should get on that sooner than later to catch issues early.
All placement specs have merged. Thanks to everyone for the frequent
reviews and quick followups.
Some non-placement specs are listed in the Other section below.
(Numbers in () are the change since the last pupdate.)
There are 23 (0) stories in [the placement
0 (0) are [untagged](https://storyboard.openstack.org/#!/worklist/580).
3 (1) are [bugs](https://storyboard.openstack.org/#!/worklist/574). 5 (0)
are [cleanups](https://storyboard.openstack.org/#!/worklist/575). 11
(0) are [rfes](https://storyboard.openstack.org/#!/worklist/594).
4 (0) are [docs](https://storyboard.openstack.org/#!/worklist/637).
If you're interested in helping out with placement, those stories
are good places to look.
* Placement related nova [bugs not yet in progress](https://goo.gl/TgiPXb)
on launchpad: 16 (0).
* Placement related nova [in progress bugs](https://goo.gl/vzGGDQ) on
launchpad: 4 (0).
osc-placement is currently behind by 11 microversions.
Add support for multiple member_of. This is stuck and needs input
from users of the tool.
# Main Themes
## Consumer Types
Adding a type to consumers will allow them to be grouped for various
purposes, including quota accounting.
This is currently the migration to add the necessary table and
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.
As mentioned last week, one of the important cleanup tasks that is not
yet in progress is updating the
that creates the nested topology that's used in nested performance
testing. The topology there is simple, unrealistic, and doesn't
sufficiently exercise the several features that may be used during a
query that desires a nested response. This needs to be someone who
is more closely related to real world use of nested than me. efried?
Another cleanup that needs to start is satisfying the community wide
goal of [PDF doc
Anyone know if there is a cookbook for this?
# Other Placement
Miscellaneous changes can be found in [the usual
There are three [os-traits
being discussed. And one [os-resource-classes
# Other Service Users
New discoveries are added to the end. Merged stuff is removed.
Anything that has had no activity in 4 weeks has been removed.
Nova: nova-manage: heal port allocations
nova-spec: Allow compute nodes to use DISK_GB from shared storage RP
Cyborg: Placement report
helm: add placement chart
Nova: Use OpenStack SDK for placement
Nova: Spec: Provider config YAML file
libvirt: report pmem namespaces resources by provider tree
Nova: Remove PlacementAPIConnectFailure handling from AggregateAPI
Nova: support move ops with qos ports
Nova: get_ksa_adapter: nix by-service-type confgrp hack
OSA: Add nova placement to placement migration
Nova: Defaults missing group_policy to 'none'
Blazar: Create placement client for each request
tempest: Define the Integrated-gate-placement gate template
Nova: Restore RT.old_resources if ComputeNode.save() fails
nova: Support filtering of hosts by forbidden aggregates
blazar: Send global_request_id for tracing calls
Nova: Update HostState.\*\_allocation_ratio earlier
neutron: segments: fix rp inventory update
Nova: WIP: Add a placement audit command
OSA: Add placement client for neutron
zun: [WIP] Use placement for unified resource management
A colleague suggested yesterday that the universe doesn't have an
over subscription problem, rather there's localized contention, and
what we really have is a placement problem.
Chris Dent ٩◔̯◔۶ https://anticdent.org/
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