Bug 2033430 - Live migration fails
Summary: Live migration fails
Keywords:
Status: CLOSED DUPLICATE of bug 1986567
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: 16.2 (Train)
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: ---
: ---
Assignee: OSP DFG:Compute
QA Contact: OSP DFG:Compute
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-12-16 19:30 UTC by jhardee
Modified: 2023-03-21 19:49 UTC (History)
11 users (show)

Fixed In Version: tripleo-ansible-0.8.1-2.20211223005854.b33463b.el8ost
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Clone Of:
Environment:
Last Closed: 2022-01-18 20:14:48 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker OSP-11869 0 None None None 2021-12-16 19:31:48 UTC

Description jhardee 2021-12-16 19:30:56 UTC 
Description of problem:

Customer live migrating a VM on same node.  Migration fails with 
~~~
"2021-12-16 17:55:53.813 7 ERROR nova.virt.libvirt.driver [-] [instance: bab26e1a-7ba7-4c7d-ba89-a959a69df21d] Live Migration failure: internal error: unable to execute QEMU command 'migrate-set-capabilities': Postcopy is not supported: libvirt.libvirtError: internal error: unable to execute QEMU command 'migrate-set-capabilities': Postcopy is not supported"
~~~

They are seeing this happening across all clusters in production

Version-Release number of selected component (if applicable):
RHOSP 16.2


How reproducible:
N/A


Steps to Reproduce:
1.
2.
3.

Actual results:

Live migration fails on same compute node


Expected results:

Live migration completes on same compute node



Additional info:
Comment 1 Martin Schuppert 2021-12-17 09:13:35 UTC 
This looks that it might be related to https://bugzilla.redhat.com/show_bug.cgi?id=1992506
if this compute e.g. use dpdk.

Until this is clarified a workaround would be to disable postcopy for the compute role:

parameter_defaults:
  <ComputeRoleName>Parameters:
    NovaLiveMigrationPermitPostCopy: False
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