Re: [libvirt] domain shutdown requests

-----Original Message----- From: Wen Congyang [mailto:wency@cn.fujitsu.com] Sent: Thursday, September 15, 2011 6:42 PM To: Christian Benvenuti (benve) Cc: Libvirt Subject: Re: [libvirt] domain shutdown requests At 09/16/2011 09:36 AM, Christian Benvenuti (benve) Write: >> -----Original Message----- >> From: Wen Congyang [mailto:wency@cn.fujitsu.com] >> Sent: Thursday, September 15, 2011 6:22 PM >> To: Christian Benvenuti (benve) >> Cc: Libvirt >> Subject: Re: [libvirt] domain shutdown requests >> >> 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. > > I (re)tested it with 0.9.4 and it does shutdown. The bevaior does not depend libvirt. It depends qemu. What is the version of qemu that you used?

Thanks Wen Congyang. > >>> 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... > > In my test it is: as soon as I do "resume", the guest initiates the > shutdown. > >> I perfer to resume the guest before shutdown it in ther driver. > > In this case the shutdown command should return something like > > "Domain XXX is in PAUSED state. You need to resume it first..." > > instead of > > "Domain XXX is being shutdown". > > /Chris > >> Thanks >> Wen Congyang >> >>> >>> Thanks >>> /Chris >>> >>> >>> >>> -- >>> libvir-list mailing list >>> libvir-list(a)redhat.com >>> https://www.redhat.com/mailman/listinfo/libvir-list >>> > >