# Live migration failure on Xen **URL:** \ **Category:** Product Support\ **Created:** [June 27, 2016, 11:43am UTC](https://forum.opennebula.io/t/live-migration-failure-on-xen/2462 "2016-06-27T11:43:24Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![arshad\_shaikh](https://avatars.discourse-cdn.com/v4/letter/a/5daacb/32.png) [@arshad\_shaikh](https://forum.opennebula.io/u/arshad_shaikh)\ **Post date:** [June 27, 2016, 11:43am UTC](https://forum.opennebula.io/t/live-migration-failure-on-xen/2462/1 "2016-06-27T11:43:24Z")
Hi guys, I am very much new to OpenNebula. I have setup a private on OpenNebula with xen Hypervisor. I am trying to perform live VM migration but I am getting the below error. Can somebody please advise me what am I doing wrong or what is missing here. Mon Jun 27 13:37:19 2016 [Z0][LCM][I]: New VM state is MIGRATE Mon Jun 27 13:37:19 2016 [Z0][VMM][I]: Successfully execute transfer manager driver operation: tm\_premigrate. Mon Jun 27 13:37:19 2016 [Z0][VMM][I]: ExitCode: 0 Mon Jun 27 13:37:19 2016 [Z0][VMM][I]: Successfully execute network driver operation: pre. Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: Command execution fail: /var/tmp/one/vmm/xen4/migrate ‘one-13’ ‘192.168.100.4’ '192.168.100.2’ 13 192.168.100.2 Mon Jun 27 13:37:20 2016 [Z0][VMM][E]: migrate: Command "sudo /usr/sbin/xl migrate -s "su - oneadmin -c ‘ssh 192.168.100.4 sudo /usr/sbin/xl migrate-receive’“ one-13 192.168.100.4” failed: migration target: Ready to receive domain. Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: Saving to migration stream new xl format (info 0x0/0x0/150) Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: Loading new save file (new xl fmt info 0x0/0x0/150) Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: Savefile contains xl domain config Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: libxl: error: libxl\_device.c:265:libxl\_\_device\_disk\_set\_backend: Disk vdev=sda failed to stat: /var/lib/one//datastores/0/13/disk.0: No such file or directory Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: libxl: error: libxl\_dm.c:1489:kill\_device\_model: unable to find device model pid in /local/domain/12/image/device-model-pid Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: libxl: error: libxl.c:1421:libxl\_\_destroy\_domid: libxl\_\_destroy\_device\_model failed for 12 Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: migration target: Domain creation failed (code -3). Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: libxl: error: libxl\_utils.c:396:libxl\_read\_exactly: file/stream truncated reading ipc msg header from domain 2 save/restore helper stdout pipe Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: libxl: error: libxl\_exec.c:129:libxl\_report\_child\_exitstatus: domain 2 save/restore helper [-1] died due to fatal signal Broken pipe Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: migration sender: libxl\_domain\_suspend failed (rc=-3) Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: libxl: info: libxl\_exec.c:118:libxl\_report\_child\_exitstatus: migration target process [12620] exited with error status 3 Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: Migration failed, resuming at sender. Mon Jun 27 13:37:20 2016 [Z0][VMM][E]: Could not migrate one-13 to 192.168.100.4 Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: ExitCode: 3 Mon Jun 27 13:37:20 2016 [Z0][VMM][I]: Failed to execute virtualization driver operation: migrate. Mon Jun 27 13:37:20 2016 [Z0][VMM][E]: Error live migrating VM: Could not migrate one-13 to 192.168.100.4 Mon Jun 27 13:37:21 2016 [Z0][LCM][I]: Fail to live migrate VM. Assuming that the VM is still RUNNING (will poll VM). Thanks and regards, Arshad ---
**Author:** ![jfontan](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/jfontan/32/18_2.png) [@jfontan](https://forum.opennebula.io/u/jfontan)\ **Post date:** [June 27, 2016, 4:38pm UTC](https://forum.opennebula.io/t/live-migration-failure-on-xen/2462/2 "2016-06-27T16:38:26Z")
Make sure that `/var/lib/one//datastores/0` is shared to both nodes. ---
**Author:** ![arshad\_shaikh](https://avatars.discourse-cdn.com/v4/letter/a/5daacb/32.png) [@arshad\_shaikh](https://forum.opennebula.io/u/arshad_shaikh)\ **Post date:** [July 26, 2016, 2:01pm UTC](https://forum.opennebula.io/t/live-migration-failure-on-xen/2462/4 "2016-07-26T14:01:04Z")
Thanks for replying Javi. I have configured the shared storage on all the nodes and now I am getting the following error when I try to do the live migration. Tue Jul 26 15:48:18 2016 [Z0][DiM][I]: New VM state is ACTIVE. Tue Jul 26 15:48:20 2016 [Z0][LCM][I]: New VM state is BOOT\_POWEROFF Tue Jul 26 15:48:20 2016 [Z0][VMM][I]: Generating deployment file: /var/lib/one/vms/31/deployment.9 Tue Jul 26 15:48:36 2016 [Z0][VMM][I]: ExitCode: 0 Tue Jul 26 15:48:36 2016 [Z0][VMM][I]: Successfully execute network driver operation: pre. Tue Jul 26 15:48:43 2016 [Z0][VMM][D]: deploy: Credits set to 256 Tue Jul 26 15:48:43 2016 [Z0][VMM][I]: ExitCode: 0 Tue Jul 26 15:48:43 2016 [Z0][VMM][I]: Successfully execute virtualization driver operation: deploy. Tue Jul 26 15:48:43 2016 [Z0][VMM][I]: ExitCode: 0 Tue Jul 26 15:48:43 2016 [Z0][VMM][I]: Successfully execute network driver operation: post. Tue Jul 26 15:48:44 2016 [Z0][LCM][I]: New VM state is RUNNING Tue Jul 26 15:58:48 2016 [Z0][LCM][I]: New VM state is MIGRATE Tue Jul 26 15:58:48 2016 [Z0][VMM][I]: Successfully execute transfer manager driver operation: tm\_premigrate. Tue Jul 26 15:58:48 2016 [Z0][VMM][I]: ExitCode: 0 Tue Jul 26 15:58:48 2016 [Z0][VMM][I]: Successfully execute network driver operation: pre. Tue Jul 26 15:58:49 2016 [Z0][VMM][I]: Command execution fail: /var/tmp/one/vmm/xen4/migrate ‘one-31’ ‘192.168.100.3’ '192.168.100.2’ 31 192.168.100.2 Tue Jul 26 15:58:49 2016 [Z0][VMM][E]: migrate: Command "sudo /usr/sbin/xl migrate -s "su - oneadmin -c ‘ssh 192.168.100.3 sudo /usr/sbin/xl migrate-receive’“ one-31 192.168.100.3” failed: one-31 is an invalid domain identifier (rc=-6) Tue Jul 26 15:58:49 2016 [Z0][VMM][E]: Could not migrate one-31 to 192.168.100.3 Tue Jul 26 15:58:49 2016 [Z0][VMM][I]: ExitCode: 2 Tue Jul 26 15:58:49 2016 [Z0][VMM][I]: Failed to execute virtualization driver operation: migrate. Tue Jul 26 15:58:49 2016 [Z0][VMM][E]: Error live migrating VM: Could not migrate one-31 to 192.168.100.3 Tue Jul 26 15:58:51 2016 [Z0][LCM][I]: Fail to live migrate VM. Assuming that the VM is still RUNNING (will poll VM). It says something related to ssh but I have checked that and ssh is working fine. I am able to ssh from any node to any other node in the cloud. Any suggestions? Regards, Arshad