Bug 2153815
| Summary: | [17.0 known issue] Document that the quota:cpu_* flavor extra specs do not work with cgroups v2 in RHEL 9 | ||
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| Product: | Red Hat OpenStack | Reporter: | Artom Lifshitz <alifshit> |
| Component: | documentation | Assignee: | Irina <igallagh> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | RHOS Documentation Team <rhos-docs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 17.0 (Wallaby) | CC: | dasmith, eglynn, igallagh, jhakimra, joflynn, juzhou, kchamart, sbauza, sgordon, vromanso |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Known Issue | |
| Doc Text: |
There is currently a known issue with creating instances when the instance flavor includes resource usage extra specs, `quota:cpu_*`. On RHOSP 17.0, attempts to create an instance with a flavor that limits the CPU quotas encounter the following error: "Requested CPU control policy not supported by host". This error is raised on RHOSP 17.0 on RHEL 9 because the Compute service assumes that the host is running `cgroups` instead of `cgroups-v2`, therefore it incorrectly detects that the host does not support resource usage extra specs.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-12-21 11:46:34 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
Artom Lifshitz
2022-12-15 14:34:23 UTC
We'd also like to add the following to our product docs: Document that the values for quota:cpu_* are host and virt driver dependant, and if you're upgrading to 17.1 you need to: a. Make sure the values in your extra specs are supported by cgroups v2 on RHEL 9. b. Create new flavors and resize your instances if they're not. Doc text seems a bit vague, but if that's the level of "generality" that we use in our release notes, I won't contradict it. Left a comment on the product docs MR. Known issue release note, and updated content, available on the Customer Portal: Release note: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/17.0/html/release_notes/chap-release-info_rhosp-relnotes#known_issues Flavor metadata note: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/17.0/html/configuring_the_compute_service_for_instance_creation/assembly_creating-flavors-for-launching-instances_instance-flavors#ref_flavor-metadata_instance-flavors |