On Tue, Jan 12, 2010 at 04:06:32PM -0800, su disheng wrote:
> Hi,
> In the following libvirt API calling sequence, I always get an error "no
> domain with matching uuid"
> Connect _conn = new Connect("qemu:///system", false);
> _conn.domainDefineXML(kvm_guest_xml);
> Domain dm = _conn.domainLookupByName(kvm_guest_name);
> dm.create();
>
> /* stop, undefine, and re-start the vm*/
> dm.shutdown();
> dm.undefine();
> dm.domainDefineXML(kvm_guest_xml);
> /****A****/
> Domain dm = _conn.domainLookupByName(kvm_guest_name);
> dm.create() /********Error!!!!**/
>
> if I close the connection, and re-connect qemu at the end of
> /****A****/, then everything is OK.
I think the first 'dm' object you create is not being freed / garbage
collected. This means the underlying libvirt virDomainPtr object is
not released. And so when you then _conn.domainLookupByName() after
'****A****' you are still getting an handle to the old object and
thus the stale UUID.
> From the log, seems that uuid is not updated immediately, for this
> connection, the uuid is in the stale state?
> I am using libvirt 0.6.3, if it's a bug, does it fixed in the latest
> code? or Have I need to close the connection for each vm shutdown/re-define?
You should not need to close the connection, provided you ensure all the
'Domain' objects are freed/garbage collected
Alternatively, if you wish to re-use the same name,then you could try
auto-generating the UUID yourself, so you use the same UUID when
defining the domain for the second time
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
--
Libvir-list mailing list
Libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list