4:26 a.m.
Hi,
I am trying to write the patch file for live migration which uses UDP as the
transport protocol.
---So I prepare to edit the existing API which uses the TCP as the transport
protocol for the migration.I want to know the modules executing during live
migration in current libvirt.(I m using ubuntu10.10 as the guest and
suitable latest version of libvirt)
----If any document which clearly shows the actual migration process. I mean
which are the functions called during live migration and how the data flow
occurs between the two physical machines or the hypervisor.
--In LAN the UDP can be used for the live migration as the loss of packets
and collision of packets are negligibly less.
--Even RUDP can also be used instead of TCP, as RUDP is reliable.
--The complete set of the code which responsible for live migration is
required where I can get that..?
Thanks and Regards
Prakash H.R
M.Tech Student at RVCE, Bangalore
+91-8904301073
4:42 a.m.
On Thu, May 26, 2011 at 02:56:55PM +0530, prakash hr wrote:
Hi,
I am trying to write the patch file for live migration which uses UDP as the
transport protocol.
---So I prepare to edit the existing API which uses the TCP as the transport
protocol for the migration.I want to know the modules executing during live
migration in current libvirt.(I m using ubuntu10.10 as the guest and
suitable latest version of libvirt)
----If any document which clearly shows the actual migration process. I mean
which are the functions called during live migration and how the data flow
occurs between the two physical machines or the hypervisor.
--In LAN the UDP can be used for the live migration as the loss of packets
and collision of packets are negligibly less.
--Even RUDP can also be used instead of TCP, as RUDP is reliable.
--The complete set of the code which responsible for live migration is
required where I can get that..?
You've already asked these questions before and got two
sets of answers:
http://www.redhat.com/archives/libvir-list/2011-May/msg01641.html
http://www.redhat.com/archives/libvirt-users/2011-May/msg00076.html
To repeat again: the migration transport is in QEMU, so send these
questions to the QEMU mailing list.
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
5:07 a.m.
You are right.
My question was something like repeating the same set of questions.
I m sorry for that.
I just want to know how the migration is done using libvirt API, I mean the
functions in libvirt does the job of migration.
I know by default all the connections are done with tcp only. So knowing
the name and code of the modules which executes the live migration, is
helpful in making the patch file for the other transport protocol.
--
Thanks and Regards
Prakash H.R
M.Tech Student at RVCE, Bangalore
+91-8904301073
6:04 a.m.
On Thu, May 26, 2011 at 03:37:27PM +0530, prakash hr wrote:
You are right.
My question was something like repeating the same set of questions.
I m sorry for that.
I just want to know how the migration is done using libvirt API, I mean the
functions in libvirt does the job of migration.
I know by default all the connections are done with tcp only. So knowing
the name and code of the modules which executes the live migration, is
helpful in making the patch file for the other transport protocol.
libvirt doesn't do anything specific to TCP - it just creates
a URI 'tcp://somehost:port' and passes it to QEMU's monitor
command for migration. QEMU contains all the code relating
to actual migration implementation
Daniel
--
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
1:18 p.m.
On Thu, May 26, 2011 at 03:37:27PM +0530, prakash hr wrote:
I just want to know how the migration is done using libvirt API, I
mean the
functions in libvirt does the job of migration.
src/qemu/qemu_migration.c in the libvirt source tree.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.
http://et.redhat.com/~rjones/virt-p2v
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4 comments
3 participants
participants (3)
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Daniel P. Berrange -
prakash hr -
Richard W.M. Jones