From: Jan Vlach <janus@volny.cz>
To: Proxmox VE user list <pve-user@lists.proxmox.com>
Subject: Re: [PVE-User] PVE - guest shutdown w/ node shutdown behavior ?
Date: Mon, 27 May 2024 16:42:41 +0200 [thread overview]
Message-ID: <4FC72AB4-52FB-4BDA-882F-C6D7F67D27B1@volny.cz> (raw)
In-Reply-To: <0A7FBE9F-E8D3-49B1-945F-701697E11C65@gmail.com>
Hi,
from my experience, you need dbus and qemu-guest agent for debian VMs and Guest Agent Enabled in VM options
OR
Guest Agent Disabled and then ACPI event gets sent inside the VM.
JV
> On 27. 5. 2024, at 16:35, vom513 <vom513@gmail.com> wrote:
>
> Hello all,
>
> I’m trying to confirm what this behavior is. That is, when a host node shuts down, how are the guests shutdown ? Specifically in relation to any guests that don’t have the agent installed.
>
> My understanding is that PVE will do the following in this order:
>
> Shutdown guest via agent … timeout
> else
> Shutdown guest via ACPI … timeout
> else
> Hard power-off
>
> In systemd pve-guests.service this is ran upon stop:
>
> ExecStop=/usr/bin/pvesh --nooutput create /nodes/localhost/stopall
>
> I also think I found the code where the 3 possibilities mentioned above happens:
>
> qemu-server/PVE/QemuServer.pm:
>
> eval {
> if ($shutdown) {
> if (defined($conf) && get_qga_key($conf, 'enabled')) {
> mon_cmd($vmid, "guest-shutdown", timeout => $timeout);
> } else {
> mon_cmd($vmid, "system_powerdown");
> }
> } else {
> mon_cmd($vmid, "quit");
> }
> };
>
> I could be off base here, please let me know.
>
> If that is the guest shutdown logic, does the “get_qga_key” check mean it’s checking that this is enabled in options (i.e. checkbox) or that it’s actually running ?
>
> Is “system_powerdown” the ACPI method ? It seems like that only gets called if the agent is enabled in config ?
>
> Is “quit” the hard poweroff ?
>
> So what about a guest that the agent option is checked but doesn’t have the agent installed ?
>
> Sorry if any of this is unclear, I’m trying my best to articulate my questions here.
>
> Thanks.
>
>
> _______________________________________________
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prev parent reply other threads:[~2024-05-27 14:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-27 14:35 vom513
2024-05-27 14:42 ` Jan Vlach [this message]
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