Public bug reported:
In some circumstances mostly related to latency , Linux kernel can have
been build with cgroung configuration CONFIG_CGROUP_SCHED not defined
which makes not possible to boot virtual machines.
We should to verify if that cgroup is well mounted on host;
by default if nothing has been requested, we can just pass that "cpu
shares" default configuration, if a request has been intended so we
should raise exception to let scheduler tries an other host.
** Affects: nova
Importance: Low
Assignee: sahid (sahid-ferdjaoui)
Status: In Progress
** Tags: libvirt
** Changed in: nova
Importance: Undecided => Low
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https://bugs.launchpad.net/bugs/1496854
Title:
libvirt: CPU tune bw policy not available in some linux kernels
Status in OpenStack Compute (nova):
In Progress
Bug description:
In some circumstances mostly related to latency , Linux kernel can
have been build with cgroung configuration CONFIG_CGROUP_SCHED not
defined which makes not possible to boot virtual machines.
We should to verify if that cgroup is well mounted on host;
by default if nothing has been requested, we can just pass that "cpu
shares" default configuration, if a request has been intended so we
should raise exception to let scheduler tries an other host.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1496854/+subscriptions
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