> > On Tue, Jul 26, 2022 at 10:27:19AM +0200, Michal Prívozník wrote: > > On 7/26/22 10:07, Jiatong Shen wrote: > > > thank you very much for reply. I have got another question which is off > > > topic. > > > Am I able to get vm's process id through libvirt api? > > > > Unfortunately, no. We specifically try to avoid telling users this > > information so that they are not tempted to go behind libvirt's back and > > interact with QEMU directly (which can lead to a split brain scenario - > > libvirt thinks guest is in a certain state, but in fact it's in a > > different state). > > > > But as I said, it should be fairly easy to extend stats to report when a > > domain was started. If you don't feel comfortable providing a patch for > > that I can try. > > Note, the time since a guest was started on the host is NOT the same as > guest uptime. Guest uptime resets on every warm reboot the guest OS > does, while QEMU stays running. >
thank you very much for the reminder. Best, Norman On Tue, Jul 26, 2022 at 4:31 PM Daniel P. Berrangé <berra...@redhat.com> wrote: > On Tue, Jul 26, 2022 at 10:27:19AM +0200, Michal Prívozník wrote: > > On 7/26/22 10:07, Jiatong Shen wrote: > > > thank you very much for reply. I have got another question which is off > > > topic. > > > Am I able to get vm's process id through libvirt api? > > > > Unfortunately, no. We specifically try to avoid telling users this > > information so that they are not tempted to go behind libvirt's back and > > interact with QEMU directly (which can lead to a split brain scenario - > > libvirt thinks guest is in a certain state, but in fact it's in a > > different state). > > > > But as I said, it should be fairly easy to extend stats to report when a > > domain was started. If you don't feel comfortable providing a patch for > > that I can try. > > Note, the time since a guest was started on the host is NOT the same as > guest uptime. Guest uptime resets on every warm reboot the guest OS > does, while QEMU stays running. > > With regards, > Daniel > -- > |: https://berrange.com -o- > https://www.flickr.com/photos/dberrange :| > |: https://libvirt.org -o- > https://fstop138.berrange.com :| > |: https://entangle-photo.org -o- > https://www.instagram.com/dberrange :| > > -- Best Regards, Jiatong Shen
