[one-users] Settings for LiveMigration

[samuel]

Hi,

Indeed nodes shall connect via ssh passwordless.
You should also check whether DNS or /etc/hosts have the right network
parameters.

I had few issues with ubuntu 10.04 and had to change to 11.04...but it might
work on your setup.

Hope it helps,
Samuel.

On 20 June 2011 15:44, fanttazio <fanttazio at gmail.com> wrote:

> Hi,
>
> My ONE seems to work fine except that I cant do Live Migrate. From hosts I
> can connect to other hosts virtual manager's console and I can perform
> migrate from host's console and also I can perform migrate from front-end.
>
> I did uncomment listen on TCP in libvirtd.conf and changed QEMU_PROTOCOL=qemu+ssh
> in /var/tmp/one/vmm/kvm/kvmrc but i cant perform livemigrate and VM logs
> this:
>
>
> ################################################################################
> Mon Jun 20 01:10:56 2011 [DiM][I]: New VM state is ACTIVE. Mon Jun 20
> 01:10:56 2011 [LCM][I]: New VM state is PROLOG. Mon Jun 20 01:10:56 2011
> [VM][I]: Virtual Machine has no context Mon Jun 20 01:10:56 2011 [TM][I]:
> tm_clone.sh: front-end:/srv/cloud/images/ttylinux.img 192.168.0.244:/srv/cloud/one/var//110/images/disk.0
> Mon Jun 20 01:10:56 2011 [TM][I]: tm_clone.sh: DST:
> /srv/cloud/one/var//110/images/disk.0 Mon Jun 20 01:10:56 2011 [TM][I]:
> tm_clone.sh: Creating directory /srv/cloud/one/var//110/images Mon Jun 20
> 01:10:56 2011 [TM][I]: tm_clone.sh: Executed "mkdir -p
> /srv/cloud/one/var//110/images". Mon Jun 20 01:10:56 2011 [TM][I]:
> tm_clone.sh: Executed "chmod a+w /srv/cloud/one/var//110/images". Mon Jun 20
> 01:10:56 2011 [TM][I]: tm_clone.sh: Cloning /srv/cloud/images/ttylinux.img
> Mon Jun 20 01:10:56 2011 [TM][I]: tm_clone.sh: Executed "cp -r
> /srv/cloud/images/ttylinux.img /srv/cloud/one/var//110/images/disk.0". Mon
> Jun 20 01:10:56 2011 [TM][I]: tm_clone.sh: Executed "chmod a+rw
> /srv/cloud/one/var//110/images/disk.0". Mon Jun 20 01:10:56 2011 [LCM][I]:
> New VM state is BOOT Mon Jun 20 01:10:56 2011 [VMM][I]: Generating
> deployment file: /srv/cloud/one/var/110/deployment.0 Mon Jun 20 01:10:57
> 2011 [LCM][I]: New VM state is RUNNING Mon Jun 20 01:12:50 2011 [LCM][I]:
> New VM state is SAVE_MIGRATE Mon Jun 20 01:12:56 2011 [LCM][I]: New VM state
> is PROLOG_MIGRATE Mon Jun 20 01:12:56 2011 [TM][I]: tm_mv.sh: Will not move,
> source and destination are equal Mon Jun 20 01:12:56 2011 [LCM][I]: New VM
> state is BOOT Mon Jun 20 01:12:59 2011 [LCM][I]: New VM state is RUNNING Mon
> Jun 20 01:14:02 2011 [LCM][I]: New VM state is SAVE_MIGRATE Mon Jun 20
> 01:14:11 2011 [LCM][I]: New VM state is PROLOG_MIGRATE Mon Jun 20 01:14:11
> 2011 [TM][I]: tm_mv.sh: Will not move, source and destination are equal Mon
> Jun 20 01:14:11 2011 [LCM][I]: New VM state is BOOT Mon Jun 20 01:14:12 2011
> [LCM][I]: New VM state is RUNNING Mon Jun 20 01:14:54 2011 [LCM][I]: New VM
> state is SAVE_MIGRATE Mon Jun 20 01:14:56 2011 [LCM][I]: New VM state is
> PROLOG_MIGRATE Mon Jun 20 01:14:56 2011 [TM][I]: tm_mv.sh: Will not move,
> source and destination are equal Mon Jun 20 01:14:56 2011 [LCM][I]: New VM
> state is BOOT Mon Jun 20 01:14:58 2011 [LCM][I]: New VM state is RUNNING Mon
> Jun 20 01:16:18 2011 [LCM][I]: New VM state is MIGRATE Mon Jun 20 01:16:18
> 2011 [VMM][I]: Command execution fail: 'if [ -x
> "/var/tmp/one/vmm/kvm/migrate" ]; then /var/tmp/one/vmm/kvm/migrate one-110
> 192.168.0.246; else exit 42; fi' Mon Jun 20 01:16:18 2011 [VMM][I]: STDERR
> follows. Mon Jun 20 01:16:18 2011 [VMM][I]: error: cannot recv data:
> Connection reset by peer Mon Jun 20 01:16:18 2011 [VMM][I]: ExitCode: 1 Mon
> Jun 20 01:16:18 2011 [VMM][E]: Error live-migrating VM, error: cannot recv
> data: Connection reset by peer Mon Jun 20 01:16:18 2011 [LCM][I]: Fail to
> life migrate VM. Assuming that the VM is still RUNNING (will poll VM). Mon
> Jun 20 01:16:19 2011 [VMM][D]: Monitor Information: CPU : 2 Memory: 262144
> Net_TX: 1438 Net_RX: 8036
>
> ###############################################################################################
>
> if I change kvmrc to LIBVIRT_URI=qemu+ssh:///system it gives me that it
> can not connect to hypervisor. the libvirtd log doesn't show any error and
> even the VM log in /var/log/libvirt/qemu/ does not show any error. Should I
> make hosts to have an ssh passwordless connection as well? or I am missing
> something here?
> All my hosts and front-end are Ubuntu 10.04.
>
> Mehdi
>
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