Hi Daniel, I wanted to ask on whether virDomainSave/Restore functions of libvirt are implemented now for the LXC containers? If yes, what libivrt version should I install please? Thanks, - Avi "Daniel P. Berrange" <berrange@xxxxxxxxxx> wrote on 04/02/2010 03:44:49 PM: > From: > > "Daniel P. Berrange" <berrange@xxxxxxxxxx> > > To: > > Avi Weit/Haifa/IBM@IBMIL > > Cc: > > libvirt-users@xxxxxxxxxx > > Date: > > 04/02/2010 03:45 PM > > Subject: > > Re: [libvirt] [LXC] Tyring to locate livbvirt > operations for LXC relocation > > On Wed, Feb 03, 2010 at 04:03:10PM +0200, Avi Weit wrote: > > > > Hello, > > > > I am searching for the libvirt operations for relocating LXC (system or > > application) containers. LXC relocation mechanism is done by checkpoint / > > restart. I went over libvirt API documentation and found the following > > methods: > > > > virDomainSave that receives a domain and path to state file. The method > > saves domain's memory contents into a disk file. > > virDomainRestore that receives a domain and path to state file. The method > > restores the domain from the state file created by save operation. > > > > Are these the proper methods to use for LXC relocation? I assume I can also > > use the corresponding operations via virsh (save / restore).. > > > > >From looking into lxcDriver object (defined under /src/lxc/xlc_driver.c in > > libvirt server source) I can see that NULLs are set in save and restore > > methods. Does that mean that there is no support for saving and restoring > > Linux containers? Is there a libvirt patch beyond the kernel patch that > > needs to be applied? > > That is correct - the virDomainSave/Restore functions are intended to save > the running guest/container state to a file or load it from a file, > respectively. These operations have not yet been implemented for libvirt's > LXC driver. I'm not sure how mature the kernel support for container > save/restore is yet, but if it has stabilized sufficiently, then we will > obviously accept patches from anyone wanting to try implementing... > > 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 :|
