Am Tue, 10 Dec 2019 12:01:24 +0100 schrieb Christian Ehrhardt <christian.ehrhardt@xxxxxxxxxxxxx>: > On Tue, Dec 10, 2019 at 10:46 AM Henning Schild > <henning.schild@xxxxxxxxxxx> wrote: > > > Hi all, > > > > the systemd shutdown scripts work sequentially with a 300s timeout > > (seen on Debian). If a VM does not have ACPI support, or the ACPI > > support failed for some reason, you are looking at a 300s timeout > > per instance for a host shutdown/reboot. > > i.e. 10 instances without working ACPI = 3000s to shut down > > > > I think the systemd scripting should be parallel instead of > > sequentially. So if you have many VMs without working ACPI you just > > have to wait 300s in total for the host to shut down. > > > > Hi Henning, > this is configurable in /etc/default/libvirt-guests > For example Ubuntu (otherwise using the same bits) changes that to run > PARALLEL_SHUTDOWN=10 > SHUTDOWN_TIMEOUT=120 Sweet. I went for the PARALLEL_SHUTDOWN=10 and left the 300. Maybe the default PARALLEL_SHUTDOWN value should not be 0 ? > I never got bugs about that config being too aggressive. > The change is old and as easy as: > https://git.launchpad.net/ubuntu/+source/libvirt/tree/debian/patches/ubuntu/parallel-shutdown.patch?h=ubuntu/focal-devel > Maybe you just want to open a bug with Debian to change the default > config there as well? No it is a bug in libvirt having the "wrong" defaults. And a bug in ubuntu not fixing it upstream ;). Thanks, Henning > Steps to reproduce: > > - star a VM that does not support ACPI > > - reboot the host and wait 300s for the VM to be shut down > > - now start it multiple times > > - wait multiples of 300s for the shutdown > > > > Expected behaviour: > > - no matter how many instances do not support ACPI, make it 300s > > max because we shut them down in parallel > > > > > > regards, > > Henning > > > > > > -- > > libvir-list mailing list > > libvir-list@xxxxxxxxxx > > https://www.redhat.com/mailman/listinfo/libvir-list > > > > > -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
