[nova] nova hypervisor oom killed some openstack guest

Clark Boylan cboylan at sapwetik.org
Wed Jul 20 22:41:42 UTC 2022

On Wed, Jul 20, 2022, at 3:17 PM, hai wu wrote:
> Is there any configuration file that is needed to ensure guest domains
> are under systemd machine.slice? not seeing anything under
> machine.slice ..

I think that https://www.freedesktop.org/software/systemd/man/systemd.slice.html and https://libvirt.org/cgroups.html covers this for libvirt managed VMs.

> On Wed, Jul 20, 2022 at 3:33 PM Dmitriy Rabotyagov
> <noonedeadpunk at gmail.com> wrote:
>> I believe you can decrease OOMScoreAdjust for systemd machines.slice, under which guest domains are to reduce chances of oom killing them.
>> ср, 20 июл. 2022 г., 21:52 hai wu <haiwu.us at gmail.com>:
>>> nova hypervisor sometimes oom would kill some openstack guests.
>>> Is it possible to not allow kernel to oom kill any openstack guests?
>>> ram is not oversubscribed much ..

More information about the openstack-discuss mailing list