[libvirt] How to differentiate creation from migration?
- First Post
- Replies
- Stats
-
Go to
- ----- 2024 -----
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2023 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2022 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2021 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2020 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2019 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2018 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2017 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2016 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2015 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2014 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2013 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2012 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2011 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2010 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2009 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2008 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2007 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2006 -----
- December
- November
- October
- September
- August
- July
- June
- May
- April
- March
- February
- January
- ----- 2005 -----
- December
Hi,
I work on a project that makes use of libvirt (called libvirt-cim) and
we created an algorithm to detect when a new machine is created.
However, I need to filter the ones created by the migration operation.
Does libvirt provides a way to distinguish a machine created by
'migrate' command from a machine created by the 'define' command
(virDomainDefineXML API call)?
Thanks in advance,
Richard Maciel
On Wed, Mar 10, 2010 at 11:40:44AM -0300, Richard Maciel wrote:
Hi,
I work on a project that makes use of libvirt (called libvirt-cim)
and we created an algorithm to detect when a new machine is created.
However, I need to filter the ones created by the migration
operation.
Does libvirt provides a way to distinguish a machine created by
'migrate' command from a machine created by the 'define' command
(virDomainDefineXML API call)?
I think that if you register for domain lifetime events then
you will get this informations as part of the details, but asynchronously
http://libvirt.org/html/libvirt-libvirt.html#virConnectDomainEventRegister
Also see Dan Berrange post from last week about event extensions.
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
On Wed, Mar 10, 2010 at 04:11:30PM +0100, Daniel Veillard wrote:
On Wed, Mar 10, 2010 at 11:40:44AM -0300, Richard Maciel wrote:
> Hi,
>
> I work on a project that makes use of libvirt (called libvirt-cim)
> and we created an algorithm to detect when a new machine is created.
> However, I need to filter the ones created by the migration
> operation.
>
> Does libvirt provides a way to distinguish a machine created by
> 'migrate' command from a machine created by the 'define' command
> (virDomainDefineXML API call)?
I think that if you register for domain lifetime events then
you will get this informations as part of the details, but asynchronously
http://libvirt.org/html/libvirt-libvirt.html#virConnectDomainEventRegister
Yes, this will give you an event
VIR_DOMAIN_EVENT_STARTED
with a detail field containing one of the following
VIR_DOMAIN_EVENT_STARTED_BOOTED = 0, /* Normal startup from boot */
VIR_DOMAIN_EVENT_STARTED_MIGRATED = 1, /* Incoming migration from another host */
VIR_DOMAIN_EVENT_STARTED_RESTORED = 2, /* Restored from a state file */
NB, we do not require that all drivers support the detail field. At this
time, only KVM/QEMU driver will fill in the detail field. Others (Xen, etc)
will always set VIR_DOMAIN_EVENT_STARTED_BOOTED
Regards,
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
5367
days inactive
5372
days old
2 comments
3 participants
tags (0)
participants (3)
-
Daniel P. Berrange -
Daniel Veillard -
Richard Maciel