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Re: [libvirt] Hyper-V driver API version support



On Fri, Aug 09, 2013 at 10:13:03AM +0200, surface me is-a-linux-user org wrote:
> Hello
> 
> The "version" function is not supported by the hyperv driver:
> $ virsh --connect=hyperv://hypervhost version
> Compiled against library: libvirt 1.1.1
> Using library: libvirt 1.1.1
> Using API: Hyper-V 1.1.1
> error: failed to get the hypervisor version
> error: this function is not supported by the connection driver:
> virConnectGetVersion
> 
> But we need this funtion for the "external/libvirt" stonith plugin
> of clusterglue:
> 
> $ cat /usr/lib/stonith/plugins/libvirt | more
> # get status of stonith device (*NOT* of the domain).
> # If we can retrieve some info from the hypervisor
> # the stonith device is OK.
> libvirt_status() {
>     out=$($VIRSH -c $hypervisor_uri version 2>&1)
>     if [ $? -eq 0 ]
>     then
>         out=`echo "$out" | tail -1`
>         ha_log.sh notice "$hypervisor_uri: $out"
>         return 0
>     fi
> 
>     ha_log.sh err "Failed to get status for $hypervisor_uri"
>     ha_log.sh err "$out"
>     return 1
> }
> 
> So, we can't implement libvirt stonith with hyperv support in our
> corosync/pacemaker cluster. Is it possible to implement the
> "version" function for hyperv into virConnectGetVersion? Or exist
> any workaround for this problem?

I'm sure its possible, but it needs someone with knowledge of the
Hyper-V apis to write a patch and there's only a couple of people
in libvirt comunity who can do that. Patches welcome from any able
person...

Daniel
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