[dropping libvir-list] On 20.11.2014 13:11, Dhia Abbassi wrote: > I'm trying to implement a virtualization API. I was testing migration > with libvirt I got some problems. > > When I use the following command : > > *virsh migrate --live --persistent --copy-storage-all vm-clone1 > qemu+ssh://server_ip/system* > * > * > the migration works fine but in the destination host the migrated vm is > paused and I can't unpause it and I need to reboot the vm to be able use > it in the new host. When I try to unoause it Igot the following error > message: > << *Error unpausing domain: internal error: unable to execute QEMU > command 'cont': Resetting the Virtual Machine is required *>> > > How can I solve this problem, or is there an other way to make a live > migration with libvirt?? > Several things may be happening here, so I'll point just a few (unordered). 1) is there some storage shared between the two hosts? If so, is it accessible from the destination? 2) When doing storage migration, you still need to pre-create the files on destination yourself. Do they have the correct size? 3) The error message seems like a qemu bug to me. Have you tried it with recent qemu? Michal

On 24.11.2014 11:23, Dhia Abbassi wrote: > Thanks for your answer, > > 1) In this case i'm not using shared storage, the migration is happening > between two non-shared storage with full disk copy > 2) I already created the file with same size, and the vm > works properly after a restart, my problem that it remains paused and I > can't resume it until it's rebooted. > 3) I'm using qemu-kvm 1.0 > This may be the root of problem. That's nearly 3 years old qemu. Michal

I tired to install newer version of qemu-kvm (2.1.0-2.9-x86_64) through rpms but the following rpms are not all available - qemu-2.1.0-2.9-x86_64.rpm - qemu-kvm-2.1.0-2.9-x86_64.rpm - qemu-common-2.1.0-2.9-x86_64.rpm - qemu-kvm-tools-2.1.0-2.9-x86_64.rpm - qemu-debuginfo-2.1.0-2.9-x86_64.rpm - qemu-system-x86-2.1.0-2.9-x86_64.rpm - qemu-guest-agent-2.1.0-2.9-x86_64.rpm - qemu-user-2.1.0-2.9-x86_64.rpm - qemu-img-2.1.0-2.9-x86_64.rpm So I changed from Centos 6.6 to Ubuntu 14.04 because the environment setup is much easier, some bugs had been fixed but the migration did not work at all and I got this error message "*error: internal error: unable to execute QEMU command 'drive-mirror*'*: Failed to connect to socket: Invalid argument*" I thought it's security issue so I disabled the SELINUX and I make some firwall configuration but the problem persist: << * sudo iptables -A INPUT -p tcp -m multiport --ports 16509 -m comment --comment "libvirt" -j ACCEPT* * sudo iptables -A INPUT -p tcp -m multiport --ports 49152:49216 -m comment --comment "migration" -j ACCEPT* >> Have you any idea what is the reason behind this problem?? On 24 November 2014 at 11:32, Dhia Abbassi <dhia.absi(a)gmail.com&gt; wrote: > I will try a newer version. > > On 24 November 2014 at 11:30, Michal Privoznik <mprivozn(a)redhat.com&gt; > wrote: > >> On 24.11.2014 11:23, Dhia Abbassi wrote: >> >>> Thanks for your answer, >>> >>> 1) In this case i'm not using shared storage, the migration is happening >>> between two non-shared storage with full disk copy >>> 2) I already created the file with same size, and the vm >>> works properly after a restart, my problem that it remains paused and I >>> can't resume it until it's rebooted. >>> 3) I'm using qemu-kvm 1.0 >>> >> >> This may be the root of problem. That's nearly 3 years old qemu. >> >> Michal >> > >