libvirt users - Nov 2014 - Re: Libvirt Live Migration

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

On 24 November 2014 at 10:22, Michal Privoznik <mprivozn@redhat.com>
wrote:
> [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 will try a newer version.

On 24 November 2014 at 11:30, Michal Privoznik <mprivozn@redhat.com>
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
>