[libvirt] domain shutdown requests

[Wen Congyang]

At 09/16/2011 05:10 AM, Christian Benvenuti (benve) Write:
> When you shutdown a domain that is in PAUSED state, the shutdown will
> not
> take effect until you issue a resume cmd:
> 
> # virsh suspend <domain_name>
> 
>   <domain_name> is now PAUSED
> 
> # virsh shutdown <domain_name>
> 
>   <domain_name> does not shutdown, with the reason being that, for
>   example in the case of a Linux Guest, the guest is not running and
>   therefore there is no acpid running and able to process the shutdown
>   request. Right?
> 
> If now we issue a resume
> 
> #virsh resume <domain_name>
> 
>   the guest initiates the (pending) shutdown (ie, acpid processes the
>   pending request).

I test it, and the guest is not shutdown after I resume the guest.

> 
> Is this the expected behavior?
> 
> Shouldn't virsh do something like this when it issues a shutdown
> request?
> 
>   if (domain.state == PAUSED)
>     resume(domain)
>   
>   shutdown(domain)
> 
> If yes, then I guess this logic should go
> - into the cmdShutdown routine if we want to make it available to virsh
> only,
> or
> - inside the driver's domainShutdown fn if we want to make it available
> to any
>   libvirt user.
> 
> One more minor comment.
> As of now, "virsh list" (or 'virsh domstate <domain>') does not provide
> any way of
> knowing if
> - a domain is being shutdown
> or
> - a domain has a pending shutdown request (like in the example above).
> 
> Would it make any sense to enhance the output of list/domstate , for
> example to
> show something like this when libvirt issues a shutdown to a running
> domain
> 
>  Id Name                 State
> ----------------------------------
>   3 FC15-2               running (shutdown in progress)
> 
> Or something like this when it issues a shutdown to a PAUSED domain?
> 
> Id Name                 State
> ----------------------------------
>   3 FC15-2               PAUSED (shutdown request pending)

The request is not pended...

I perfer to resume the guest before shutdown it in ther driver.

Thanks
Wen Congyang

> 
> Thanks
> /Chris
> 
> 
> 
> --
> libvir-list mailing list
> libvir-list at redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list
>