Bug 1473863 - live-migration with boot from volume + config_drive takes a very long time.
Summary: live-migration with boot from volume + config_drive takes a very long time.
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: 10.0 (Newton)
Hardware: x86_64
OS: Linux
high
urgent
Target Milestone: z2
: 12.0 (Pike)
Assignee: Matthew Booth
QA Contact: awaugama
URL:
Whiteboard:
Depends On:
Blocks: 1537068 1537069
TreeView+ depends on / blocked
 
Reported: 2017-07-21 22:01 UTC by Siggy Sigwald
Modified: 2023-01-13 10:42 UTC (History)
22 users (show)

Fixed In Version: openstack-nova-16.0.2-10.el7ost
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1537068 1537069 (view as bug list)
Environment:
Last Closed: 2018-03-28 17:19:08 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Launchpad 1719362 0 None None None 2017-09-25 16:42:06 UTC
OpenStack gerrit 507202 0 None master: MERGED nova: libvirt: Don't VIR_MIGRATE_NON_SHARED_INC without migrate_disks (I9b545ca8aa6dd7b41ddea2d333190c9fbed19bc1) 2018-01-22 12:27:50 UTC
OpenStack gerrit 519631 0 None stable/pike: MERGED nova: libvirt: bandwidth param should be set in guest migrate (I8a37753dea8eca7b26466f17dfbdc184c48c24c5) 2018-01-22 12:27:43 UTC
OpenStack gerrit 519632 0 None stable/pike: MERGED nova: libvirt: Don't VIR_MIGRATE_NON_SHARED_INC without migrate_disks (I9b545ca8aa6dd7b41ddea2d333190c9fbed19bc1) 2018-01-22 12:27:37 UTC
Red Hat Issue Tracker OSP-4662 0 None None None 2022-08-16 12:49:19 UTC
Red Hat Product Errata RHBA-2018:0605 0 None None None 2018-03-28 17:20:42 UTC

Comment 1 Andreas Karis 2017-07-24 16:15:40 UTC
Hello,

Can we get some traction for this BZ?

Thanks,

Andreas

Comment 4 Matthew Booth 2017-07-28 16:57:37 UTC
I can't reproduce this locally, btw. Migration of boot from volume with config drive completes normally here.

Comment 9 awaugama 2017-09-07 19:11:47 UTC
Closed without a fix therefore QE won't automate

Comment 26 Matthew Booth 2017-09-25 14:47:03 UTC
I've now reproduced this locally.

Comment 33 Matthew Booth 2018-01-31 14:38:04 UTC
Reproducer:

1. Create a boot-from-volume instance with a large root disk (e.g. 100G) and a config disk, but no other disks.
2. Live migrate the instance.

The bug can be considered verified if the live migration completes faster than the root disk could reasonably have been copied over the network. That is, a lightly loaded instance should live migrate in 'a few' seconds.

The bug can be directly verified by enabling libvirt debug logging and observing that no block migration of the root disk takes place, or by noting that migrateToURI3() is called with no/empty migrate_disks parameter and without VIR_MIGRATE_NON_SHARED_INC (value 128) in flags.

Comment 41 errata-xmlrpc 2018-03-28 17:19:08 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, 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/RHBA-2018:0605


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