Hello Karl,

See https://docs.openstack.org/nova/latest/admin/configuring-migrations.html about this. Maybe auto-convergence could be helpful in your case.

Cheers,
Kees

__

Kees Meijs BICT

Nefos Cloud & IT

Nefos IT bv
Burgemeester Mollaan 34a
5582 CK Waalre - NL
kvk 66494931

+31 (0)88 2088 188
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On 12-09-2025 10:59, Karl Kloppenborg wrote:
Hi Openstack Teams,

We’re attempting to live-migrate instances off of a node, we continuously hit a timeout issue where memory copy doesn’t work:
2025-09-12 08:55:20.116 971204 INFO nova.virt.libvirt.driver [None req-250bc815-3323-4619-aef8-a11fdf92b27a 405874cabc5b4bf3912a5f89d54eb0d1 21eb701c2a1f48b38dab8f34c0a20902 - - default default] [instance: 2f496843-a2c4-48d4-bbdc-149a2ea76f1c] Migration running for 274 secs, memory 100% remaining (bytes processed=281505, remaining=8595255296, total=8604033024); disk 100% remaining (bytes processed=0, remaining=0, total=0).
2025-09-12 08:55:58.807 971204 INFO nova.virt.libvirt.driver [None req-250bc815-3323-4619-aef8-a11fdf92b27a 405874cabc5b4bf3912a5f89d54eb0d1 21eb701c2a1f48b38dab8f34c0a20902 - - default default] [instance: 2f496843-a2c4-48d4-bbdc-149a2ea76f1c] Migration running for 312 secs, memory 100% remaining (bytes processed=281505, remaining=8595255296, total=8604033024); disk 100% remaining (bytes processed=0, remaining=0, total=0).
2025-09-12 08:56:02.468 971204 INFO nova.compute.manager [None req-1f91a8d6-1fa7-47b2-8c3f-70925fb7a219 - - - - - -] [instance: 2f496843-a2c4-48d4-bbdc-149a2ea76f1c] During sync_power_state the instance has a pending task (migrating). Skip.


2025-09-12 08:56:37.985 971204 INFO nova.virt.libvirt.driver [None req-250bc815-3323-4619-aef8-a11fdf92b27a 405874cabc5b4bf3912a5f89d54eb0d1 21eb701c2a1f48b38dab8f34c0a20902 - - default default] [instance: 2f496843-a2c4-48d4-bbdc-149a2ea76f1c] Migration running for 352 secs, memory 100% remaining (bytes processed=281505, remaining=8595255296, total=8604033024); disk 100% remaining (bytes processed=0, remaining=0, total=0).
2025-09-12 08:57:17.377 971204 INFO nova.virt.libvirt.driver [None req-250bc815-3323-4619-aef8-a11fdf92b27a 405874cabc5b4bf3912a5f89d54eb0d1 21eb701c2a1f48b38dab8f34c0a20902 - - default default] [instance: 2f496843-a2c4-48d4-bbdc-149a2ea76f1c] Migration running for 391 secs, memory 100% remaining (bytes processed=281505, remaining=8595255296, total=8604033024); disk 100% remaining (bytes processed=0, remaining=0, total=0).
2025-09-12 08:57:56.877 971204 INFO nova.virt.libvirt.driver [None req-250bc815-3323-4619-aef8-a11fdf92b27a 405874cabc5b4bf3912a5f89d54eb0d1 21eb701c2a1f48b38dab8f34c0a20902 - - default default] [instance: 2f496843-a2c4-48d4-bbdc-149a2ea76f1c] Migration running for 431 secs, memory 100% remaining (bytes processed=281505, remaining=8595255296, total=8604033024); disk 100% remaining (bytes processed=0, remaining=0, total=0).

Has anyone got insights for this issue?

Your help is greatly appreciated.

Thanks,
Karl.


Karl Kloppenborg

Chief Technology Officer


m: +61 437 239 565
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