shutdown virtual machine did not display in the list when using virsh list --all and virsh list --state-shutoff
Hello, I am using ovirt 4.3.8. I want to use the virsh command to boot the shutdown virtual machine, but when using virsh list --all and virsh list --state-shutoff, the shutdown virtual machine did not display in the list. What is the cause of this, and how can I display the shutdown virtual machine. virsh # list --all Please enter your authentication name: root Please enter your password: Id Name State ---------------------------------------------------- 4 win10E2 running virsh # list --state-shutoff Id Name State ----------------------------------------------------
Hi, On Sun, Aug 30, 2020 at 9:55 AM Kyre <kyre@vcloudpoint.com> wrote:
Hello, I am using ovirt 4.3.8. I want to use the virsh command to boot the shutdown virtual machine, but when using virsh list --all and virsh list --state-shutoff, the shutdown virtual machine did not display in the list. What is the cause of this, and how can I display the shutdown virtual machine.
You can't. All oVirt-managed VMs are, in libvirt terms, transient. The meta-data about them is kept in the engine's database, not in libvirt. If you want this to plan for (or already are in) a case where the engine is dead/unavailable, then you should make sure you keep regular engine backups, so that you can restore it, and/or check about DR. Best regards,
virsh # list --all Please enter your authentication name: root Please enter your password: Id Name State ---------------------------------------------------- 4 win10E2 running
virsh # list --state-shutoff Id Name State ----------------------------------------------------
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-- Didi
On Sun, Aug 30, 2020 at 10:26 AM Yedidyah Bar David <didi@redhat.com> wrote:
Hi,
On Sun, Aug 30, 2020 at 9:55 AM Kyre <kyre@vcloudpoint.com> wrote:
Hello, I am using ovirt 4.3.8. I want to use the virsh command to boot
the shutdown virtual machine, but when using virsh list --all and virsh list --state-shutoff, the shutdown virtual machine did not display in the list. What is the cause of this, and how can I display the shutdown virtual machine.
You can't.
All oVirt-managed VMs are, in libvirt terms, transient. The meta-data about them is kept in the engine's database, not in libvirt.
This is no longer the case - in 2017 we switched to persistent domains ( https://gerrit.ovirt.org/c/78046) When the engine issues a 'destroy' call, VDSM undefines the VM
If you want this to plan for (or already are in) a case where the engine is dead/unavailable, then you should make sure you keep regular engine backups, so that you can restore it, and/or check about DR.
Best regards,
virsh # list --all Please enter your authentication name: root Please enter your password: Id Name State ---------------------------------------------------- 4 win10E2 running
virsh # list --state-shutoff Id Name State ----------------------------------------------------
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https://www.ovirt.org/community/about/community-guidelines/
List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/JGFSRX5YF3GK5D...
-- Didi _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/PD6Y4LWKVVNI4N...
On Sun, Aug 30, 2020 at 11:49 AM Arik Hadas <ahadas@redhat.com> wrote:
On Sun, Aug 30, 2020 at 10:26 AM Yedidyah Bar David <didi@redhat.com> wrote:
Hi,
On Sun, Aug 30, 2020 at 9:55 AM Kyre <kyre@vcloudpoint.com> wrote:
Hello, I am using ovirt 4.3.8. I want to use the virsh command to boot the shutdown virtual machine, but when using virsh list --all and virsh list --state-shutoff, the shutdown virtual machine did not display in the list. What is the cause of this, and how can I display the shutdown virtual machine.
You can't.
All oVirt-managed VMs are, in libvirt terms, transient. The meta-data about them is kept in the engine's database, not in libvirt.
This is no longer the case - in 2017 we switched to persistent domains (https://gerrit.ovirt.org/c/78046) When the engine issues a 'destroy' call, VDSM undefines the VM
Which makes the VM transient. I think the reason we switched to "persistent" VM was to use VM metadata, and use more common code paths that are less likely to break. Even if we keep the VMs defined, you may not be able to start them later since the storage required by the VM may not be available on the host at the point you start the VM later (.e.g. after reboot). If the storage is available, starting a VM behind engine back may lead a split brain since the VM may be running on another host. The right way to manage oVirt VMs is using engine API. Since we removed the oVirt shell, there is no easy way like virsh, but one can script this using the SDK. Nir
If you want this to plan for (or already are in) a case where the engine is dead/unavailable, then you should make sure you keep regular engine backups, so that you can restore it, and/or check about DR.
Best regards,
virsh # list --all Please enter your authentication name: root Please enter your password: Id Name State ---------------------------------------------------- 4 win10E2 running
virsh # list --state-shutoff Id Name State ----------------------------------------------------
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-- Didi _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/PD6Y4LWKVVNI4N...
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participants (4)
-
Arik Hadas -
Kyre -
Nir Soffer -
Yedidyah Bar David