libvirt users - Apr 2015 - Question regarding management of VMs using libvirtd.

Hi All,



I have a question regarding the uses of libvirtd.  We have the following
situation to manage.

We have several hosts with libvirtd running.  We have one management
application to manage different VMs launched in those different hosts.

We want to configure the system such a way so that one libvirtd can collect
information about the VMs launched by other libvirtd running in different
hosts. Is it possible? Could you please point me to some resource around
this?

In this we will be able to get information about VMs from single source and
need not to query different host for VMs info.



Regards,

Somenath

On 20.04.2015 15:52, somenathpal . wrote:
> Hi All,
> 
> 
> 
> I have a question regarding the uses of libvirtd.  We have the following
> situation to manage.
> 
> We have several hosts with libvirtd running.  We have one management
> application to manage different VMs launched in those different hosts.
> 
> We want to configure the system such a way so that one libvirtd can collect
> information about the VMs launched by other libvirtd running in different
> hosts. Is it possible? Could you please point me to some resource around
> this?
> 
> In this we will be able to get information about VMs from single source and
> need not to query different host for VMs info.
No, libvirtd's scope is a single host. It can't manage VMs on a distant
hosts, so I'm afraid you'll have to query daemons on all the hosts to
get desired info.

Michal

On 04/20/2015 08:55 AM, Michal Privoznik wrote:
> On 20.04.2015 15:52, somenathpal . wrote:
>> Hi All,
>>
>>
>>
>> I have a question regarding the uses of libvirtd.  We have the
following
>> situation to manage.
>>
>> We have several hosts with libvirtd running.  We have one management
>> application to manage different VMs launched in those different hosts.
>>
>> We want to configure the system such a way so that one libvirtd can
collect
>> information about the VMs launched by other libvirtd running in
different
>> hosts. Is it possible? Could you please point me to some resource
around
>> this?
>>
>> In this we will be able to get information about VMs from single source
and
>> need not to query different host for VMs info.
> 
> No, libvirtd's scope is a single host. It can't manage VMs on a
distant
> hosts, so I'm afraid you'll have to query daemons on all the hosts
to
> get desired info.
That said, libvirtd IS designed to be remote controlled, so it is
certainly feasible to write higher-layer applications that manage
connections to multiple libvirtd and collect results into a single app
for use by the end user.  In fact, that's what VDSM does.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org