Re: Is it possible to live migrate guest OS'es between different versions of kvm/qemu-kvm?
Hey Juan, do you also think future releases of kvm will have support for live migration from older versions? We're quite keen on knowing this, as we need to make a decision on what to build our stuff on. Being able to transparently move virtual servers onto a host running a newer version is definitely a feature we need... Thanks in advance, Nils On 09/05/2010 10:39 AM, Avi Kivity wrote: On 09/03/2010 02:35 PM, Nils Cant wrote: First, don't trim the cc list. It's evil. Is this something we can depend on for future releases then? If we decide now to build a virtual hosting farm on 0.12, will we be able to use live migration in the future if we decide we want to upgrade to 0.13 or later? I believe so. Juan, can you confirm? -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Is it possible to live migrate guest OS'es between different versions of kvm/qemu-kvm?
On 09/03/2010 02:35 PM, Nils Cant wrote: First, don't trim the cc list. It's evil. Is this something we can depend on for future releases then? If we decide now to build a virtual hosting farm on 0.12, will we be able to use live migration in the future if we decide we want to upgrade to 0.13 or later? I believe so. Juan, can you confirm? -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Is it possible to live migrate guest OS'es between different versions of kvm/qemu-kvm?
Is this something we can depend on for future releases then? If we decide now to build a virtual hosting farm on 0.12, will we be able to use live migration in the future if we decide we want to upgrade to 0.13 or later? N. On 08/31/2010 02:24 PM, Avi Kivity wrote: It should work between 0.12 and 0.13, though. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Is it possible to live migrate guest OS'es between different versions of kvm/qemu-kvm?
On 08/30/2010 11:16 PM, Brian Jackson wrote: On Monday, August 30, 2010 07:04:51 am Nils Cant wrote: Hey guys, next try is without libvirt, but still no joy. After issuing 'migrate -d' on my sending host (qemu-kvm 0.11.0), I get the following output on the receiving host (qemu-kvm 0.12.4): A quick search of this and/or the qemu mailing lists would have told you this is unsupported. It should work between 0.12 and 0.13, though. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Is it possible to live migrate guest OS'es between different versions of kvm/qemu-kvm?
On Monday, August 30, 2010 07:04:51 am Nils Cant wrote: > Hey guys, > > next try is without libvirt, but still no joy. > > After issuing 'migrate -d ' on my sending host (qemu-kvm 0.11.0), I > get the following output on the receiving host (qemu-kvm 0.12.4): A quick search of this and/or the qemu mailing lists would have told you this is unsupported. > > (qemu) Unknown savevm section or instance 'slirp' 0 > load of migration failed > > ... leaving my vm broken. > > Am I doing something wrong, or is the format of the savevm file just > different and should I abandon all hope of ever doing a live migration > to a newer version of qemu-kvm? > > Thanks in advance, > > > Nils > > --- > > Here are my upstart options on the 'sender': > > /usr/bin/kvm -S \ > -M pc-0.11 \ > -enable-kvm \ > -m 512 \ > -smp 2,sockets=2,cores=1,threads=1 \ > -name testserver \ > -uuid 890a0156-0542-32d8-66d7-b36a711084cc \ > -monitor > unix:/var/lib/libvirt/qemu/testserver.monitor,server,nowait \ > -boot c \ > -drive > file=/dev/disk/by-path/ip-192.168.3.100:3260-iscsi-iqn.2003-10.com.lefthand > networks:lefthand0:64:testserver-lun-0,if=virtio,boot=on \ > -drive media=cdrom \ > -usb \ > -vnc 0.0.0.0:10 \ > -k en-us \ > -vga cirrus & > > And the 'receiver': > > /usr/bin/kvm -S \ > -M pc-0.11 \ > -enable-kvm \ > -m 512 \ > -smp 2,sockets=2,cores=1,threads=1 \ > -name testserver \ > -uuid 890a0156-0542-32d8-66d7-b36a711084cc \ > -nodefaults \ > -chardev > socket,id=monitor,path=/var/lib/libvirt/qemu/testserver.monitor,server,nowa > it \ > -mon chardev=monitor,mode=readline \ > -boot c \ > -drive > file=/dev/disk/by-path/ip-192.168.3.100:3260-iscsi-iqn.2003-10.com.lefthand > networks:lefthand0:64:testserver-lun-0,if=none,id=drive-virtio-disk0,boot=o > n \ > -drive if=none,media=cdrom,id=drive-ide0-1-0 \ > -device > ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ > -device > virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 > \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \ -chardev > pty,id=serial0 \ > -device isa-serial,chardev=serial0 \ > -usb \ > -vnc 0.0.0.0:0 \ > -k en-us \ > -vga cirrus \ > -incoming tcp:0: & > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Is it possible to live migrate guest OS'es between different versions of kvm/qemu-kvm?
Hey guys, next try is without libvirt, but still no joy. After issuing 'migrate -d ' on my sending host (qemu-kvm 0.11.0), I get the following output on the receiving host (qemu-kvm 0.12.4): (qemu) Unknown savevm section or instance 'slirp' 0 load of migration failed ... leaving my vm broken. Am I doing something wrong, or is the format of the savevm file just different and should I abandon all hope of ever doing a live migration to a newer version of qemu-kvm? Thanks in advance, Nils --- Here are my upstart options on the 'sender': /usr/bin/kvm -S \ -M pc-0.11 \ -enable-kvm \ -m 512 \ -smp 2,sockets=2,cores=1,threads=1 \ -name testserver \ -uuid 890a0156-0542-32d8-66d7-b36a711084cc \ -monitor unix:/var/lib/libvirt/qemu/testserver.monitor,server,nowait \ -boot c \ -drive file=/dev/disk/by-path/ip-192.168.3.100:3260-iscsi-iqn.2003-10.com.lefthandnetworks:lefthand0:64:testserver-lun-0,if=virtio,boot=on \ -drive media=cdrom \ -usb \ -vnc 0.0.0.0:10 \ -k en-us \ -vga cirrus & And the 'receiver': /usr/bin/kvm -S \ -M pc-0.11 \ -enable-kvm \ -m 512 \ -smp 2,sockets=2,cores=1,threads=1 \ -name testserver \ -uuid 890a0156-0542-32d8-66d7-b36a711084cc \ -nodefaults \ -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/testserver.monitor,server,nowait \ -mon chardev=monitor,mode=readline \ -boot c \ -drive file=/dev/disk/by-path/ip-192.168.3.100:3260-iscsi-iqn.2003-10.com.lefthandnetworks:lefthand0:64:testserver-lun-0,if=none,id=drive-virtio-disk0,boot=on \ -drive if=none,media=cdrom,id=drive-ide0-1-0 \ -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \ -chardev pty,id=serial0 \ -device isa-serial,chardev=serial0 \ -usb \ -vnc 0.0.0.0:0 \ -k en-us \ -vga cirrus \ -incoming tcp:0: & -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
