Bug 2141186

Summary:	Live migration fails due to qemu error during in-place upgrade
Product:	Red Hat OpenStack	Reporter:	Keigo Noha <knoha>
Component:	documentation	Assignee:	kgilliga
Status:	CLOSED CURRENTRELEASE	QA Contact:	RHOS Documentation Team <rhos-docs>
Severity:	medium	Docs Contact:
Priority:	high
Version:	16.2 (Train)	CC:	kgilliga
Target Milestone:	---	Keywords:	Documentation, Triaged
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-07 15:26:40 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:

Description Keigo Noha 2022-11-09 04:54:02 UTC

Description of problem:
We found an issue in FFU that instances which have 9+ vpcus and mq is enabled can't do live-migration between OSP16.1 nodes.

The details are written at https://access.redhat.com/solutions/6980544.

The link to the KCS should be written at FFU guide because the environment needs to run overcloud deploy soon after FFU to put the workaround in it.

Comment 1 Keigo Noha 2022-11-14 02:56:11 UTC

One correction is that applying the following puppet parameter doesn't need to run overcloud deploy command after FFU.

~~~
parameter_defaults:
  ComputeExtraConfig:
    nova::compute::libvirt::max_queues: 8
~~~

This should be configured at upgarde prepare to include it.