OpenNebula

Hi,

Seems to me that the /var/lib/one/remotes/tm/fs_lvm/premigrate does not create the vm folder in the datastore root and does not symlink the device.
So live migrate can't be done to a new host where the vm was not created on.
premigrate & postmigrate only do lvchange to the logical volume....

If I create the folder and symlinks manually, migration seems to work.

Wed Nov 9 14:49:29 2016 [Z0][VM][I]: New state is ACTIVE
Wed Nov 9 14:49:29 2016 [Z0][VM][I]: New LCM state is PROLOG
Wed Nov 9 14:52:59 2016 [Z0][VM][I]: New LCM state is BOOT
Wed Nov 9 14:52:59 2016 [Z0][VMM][I]: Generating deployment file: /var/lib/one/vms/7/deployment.0
Wed Nov 9 14:53:00 2016 [Z0][VMM][I]: Successfully execute transfer manager driver operation: tm_context.
Wed Nov 9 14:53:00 2016 [Z0][VMM][I]: ExitCode: 0
Wed Nov 9 14:53:00 2016 [Z0][VMM][I]: Successfully execute network driver operation: pre.
Wed Nov 9 14:53:02 2016 [Z0][VMM][I]: ExitCode: 0
Wed Nov 9 14:53:02 2016 [Z0][VMM][I]: Successfully execute virtualization driver operation: deploy.
Wed Nov 9 14:53:02 2016 [Z0][VMM][I]: post: Executed "sudo ovs-vsctl set Port one-7-0 tag=42".
Wed Nov 9 14:53:02 2016 [Z0][VMM][I]: ExitCode: 0
Wed Nov 9 14:53:02 2016 [Z0][VMM][I]: Successfully execute network driver operation: post.
Wed Nov 9 14:53:02 2016 [Z0][VM][I]: New LCM state is RUNNING
Wed Nov 9 15:44:59 2016 [Z0][VM][I]: New LCM state is MIGRATE
Wed Nov 9 15:45:00 2016 [Z0][VMM][I]: Successfully execute transfer manager driver operation: tm_premigrate.
Wed Nov 9 15:45:00 2016 [Z0][VMM][I]: ExitCode: 0
Wed Nov 9 15:45:00 2016 [Z0][VMM][I]: Successfully execute network driver operation: pre.
Wed Nov 9 15:45:01 2016 [Z0][VMM][I]: Command execution fail: cat << EOT | /var/tmp/one/vmm/kvm/migrate 'one-7' 'nebulahost001' 'nebulahost002' 7 nebulahost002
Wed Nov 9 15:45:01 2016 [Z0][VMM][E]: migrate: Command "virsh --connect qemu:///system migrate --live one-7 qemu+ssh://nebulahost001/system" failed: error: Cannot access storage file '/var/lib/one//datastores/104/7/disk.1' (as uid:9869, gid:9869): No such file or directory
Wed Nov 9 15:45:01 2016 [Z0][VMM][E]: Could not migrate one-7 to nebulahost001
Wed Nov 9 15:45:01 2016 [Z0][VMM][I]: ExitCode: 1
Wed Nov 9 15:45:01 2016 [Z0][VMM][I]: Successfully execute transfer manager driver operation: tm_failmigrate.
Wed Nov 9 15:45:01 2016 [Z0][VMM][I]: Failed to execute virtualization driver operation: migrate.
Wed Nov 9 15:45:01 2016 [Z0][VMM][E]: Error live migrating VM: Could not migrate one-7 to nebulahost001
Wed Nov 9 15:45:01 2016 [Z0][VM][I]: New LCM state is RUNNING
Wed Nov 9 15:45:01 2016 [Z0][LCM][I]: Fail to live migrate VM. Assuming that the VM is still RUNNING (will poll VM).