2012890 – With descheduler during multiple VMIs migrations, some VMs are restarted

Bug 2012890 - With descheduler during multiple VMIs migrations, some VMs are restarted

Summary: With descheduler during multiple VMIs migrations, some VMs are restarted

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Container Native Virtualization (CNV)
Classification:	Red Hat
Component:	Virtualization
Sub Component:
Version:	4.8.1
Hardware:	Unspecified
OS:	Unspecified
Priority:	urgent
Severity:	high
Target Milestone:	---
Target Release:	4.8.3
Assignee:	Antonio Cardace
QA Contact:	Sarah Bennert
Docs Contact:
URL:
Whiteboard:
Depends On:	1991938 2005695
Blocks:
TreeView+	depends on / blocked

Reported:	2021-10-11 14:28 UTC by sgott
Modified:	2021-12-02 17:01 UTC (History)
CC List:	12 users (show)
Fixed In Version:	virt-operator-container-v4.8.3-6 hco-bundle-registry-container-v4.8.3-19
Doc Type:	If docs needed, set a value
Doc Text:
Clone Of:	2005695
Environment:
Last Closed:	2021-12-02 17:01:42 UTC
Target Upstream Version:
Embargoed:
Dependent Products:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
Github	kubevirt kubevirt pull 6573	0	None	Merged	[release-0.41] Mutate PDBs during a live-migration	2021-10-25 14:48:14 UTC
Red Hat Product Errata	RHSA-2021:4914	0	None	None	None	2021-12-02 17:01:48 UTC

Comment 1 Sarah Bennert 2021-10-14 20:34:31 UTC

Descheduler deployment is failing.

Depends on:
https://github.com/openshift/cluster-kube-descheduler-operator/pull/224
https://bugzilla.redhat.com/show_bug.cgi?id=1991938

Comment 2 vsibirsk 2021-10-19 11:09:26 UTC

Verified with virt-operator version is: v4.8.3-6

Checked with fedora 34 VM
$ virtctl -n supported-os-common-templates-fedora-test-fedora-os-support migrate fedora-34-1634640559-0947003
VM fedora-34-1634640559-0947003 was scheduled to migrate

$ oc get pods -w -n supported-os-common-templates-fedora-test-fedora-os-support
NAME                                               READY   STATUS    RESTARTS   AGE
virt-launcher-fedora-34-1634640559-0947003-226xr   1/1     Running   0          12m
virt-launcher-fedora-34-1634640559-0947003-hdgvm   0/1     Pending   0          0s
virt-launcher-fedora-34-1634640559-0947003-hdgvm   0/1     Pending   0          0s
virt-launcher-fedora-34-1634640559-0947003-hdgvm   0/1     ContainerCreating   0          1s
virt-launcher-fedora-34-1634640559-0947003-hdgvm   0/1     ContainerCreating   0          6s
virt-launcher-fedora-34-1634640559-0947003-hdgvm   1/1     Running             0          7s
virt-launcher-fedora-34-1634640559-0947003-226xr   0/1     Completed           0          13m

$ oc get vmi -w -n supported-os-common-templates-fedora-test-fedora-os-support
NAME                           AGE   PHASE     IP            NODENAME
fedora-34-1634640559-0947003   12m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-m92df
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-m92df
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-m92df
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-m92df
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-m92df
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-m92df
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-m92df
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-s827m
fedora-34-1634640559-0947003   13m   Running   10.128.2.21   virt-vk-483-pwmjw-worker-0-s827m
fedora-34-1634640559-0947003   13m   Running   10.129.3.222   virt-vk-483-pwmjw-worker-0-s827m

During migration process only 1 PDB CR existed in VM namespace
$ oc get pdb -w -n supported-os-common-templates-fedora-test-fedora-os-support
NAME                               MIN AVAILABLE   MAX UNAVAILABLE   ALLOWED DISRUPTIONS   AGE
kubevirt-disruption-budget-kmtcs   1               N/A               0                     12m
kubevirt-disruption-budget-kmtcs   2               N/A               0                     13m
kubevirt-disruption-budget-kmtcs   2               N/A               0                     13m
kubevirt-disruption-budget-kmtcs   2               N/A               0                     13m
kubevirt-disruption-budget-kmtcs   2               N/A               0                     13m
kubevirt-disruption-budget-kmtcs   1               N/A               0                     13m
kubevirt-disruption-budget-kmtcs   1               N/A               0                     13m

Comment 6 errata-xmlrpc 2021-12-02 17:01:42 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: OpenShift Virtualization 4.8.3 Images security and bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2021:4914

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