Re: Please help confirm this upsream issue

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> On 08/07/2013 03:41 AM, Daniel P. Berrange wrote:
> > On Wed, Aug 07, 2013 at 02:34:56AM -0400, Zhenfeng Wang wrote:
> >> Hi
> >> I just try to verify the bug 828546 with the latest libvirt version on
> >> rhel7,
> >> and found an issue that the on_crash element on guest's xml didn't support
> >> the "rename-restart" events on the upsteam. I discussed this issue with
> >> eric before,
> >> he said that this feature was implemented by fujitsu first, he didn't
> >> backported this
> >> and he just backported what upstream does, also he was not sure if Fujitsu
> >> implemented
> >> the "rename-restart" events either, so can you help me confirm that should
> >> we support
> >> the "rename-restart" events on the upstream? thanks
> > 
> > The bug you quote is marked private so people on this list cannot
> > view it. Your question is a matter for RHEL engineers to answer, not
> > the libvirt community, so please take it off this list.
> 
> Although the question was poorly worded by referring to downstream
> elements, I still think the concept behind the question is appropriate
> for upstream.  That is:
> 
> What good is the "rename-restart" <on_*> XML element?  Is it wired up
> for anything other than xen?
> 
> A grep of the code base shows only:
> 
> src/conf/domain_conf.h:    VIR_DOMAIN_LIFECYCLE_RESTART_RENAME,
> src/conf/domain_conf.h:    VIR_DOMAIN_LIFECYCLE_CRASH_RESTART_RENAME,
> src/nwfilter/nwfilter_ebiptables_driver.c:#define
> NWFILTER_FUNC_RENAME_CHAINS ebiptables_script_func_rename_chains
> src/nwfilter/nwfilter_ebiptables_driver.c:    virBufferAsprintf(buf,
> NWFILTER_FUNC_RENAME_CHAINS,
> src/qemu/qemu_driver.c:        vm->def->onPoweroff ==
> VIR_DOMAIN_LIFECYCLE_RESTART_RENAME) {
> src/test/test_driver.c:    case VIR_DOMAIN_LIFECYCLE_RESTART_RENAME:
> src/xenapi/xenapi_utils.c:    else if (action ==
> VIR_DOMAIN_LIFECYCLE_CRASH_RESTART_RENAME)
> src/xenapi/xenapi_utils.c:        num =
> XEN_ON_CRASH_BEHAVIOUR_RENAME_RESTART;
> src/xenapi/xenapi_utils.c:    else if (action ==
> XEN_ON_CRASH_BEHAVIOUR_RENAME_RESTART)
> src/xenapi/xenapi_utils.c:        num =
> VIR_DOMAIN_LIFECYCLE_CRASH_RESTART_RENAME;
> 
> which looks like only xen has wired up the ability to automatically
> rename a domain when restarting it.  If so, we ought to update
> formatdomain.html to better clarify that not all actions are supported
> for all hypervisors.  (Hmm, that page already admits that
> <on_poweroff>rename-restart</on_poweroff> is treated like plain
> 'restart' for qemu/kvm; so really the question is whether we copied that
> behavior for the new support for <on_crash>).
 
Sorry to reply so late and thanks for eric's exactly explanation, that's my
real question. So will we support the "rename-restart" events for <on_crash>
on the upstream ? thanks

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