[one-users] problem doing migration

[Shi Jin]

Hi there,

I've set up a Ubuntu Jaunty cluster to run Open Nebula where the VM_DIR is shared by NFS.
I tried to do livemigration but got the error message:
Fri Jun 19 08:03:51 2009 [LCM][I]: New VM state is MIGRATE
Fri Jun 19 08:03:51 2009 [VMM][I]: Connecting to uri: qemu:///system
Fri Jun 19 08:03:51 2009 [VMM][I]: ExitCode: 0
Fri Jun 19 08:03:52 2009 [VMM][I]: Connecting to uri: qemu:///system
Fri Jun 19 08:03:52 2009 [VMM][I]: error: unable to connect to 'test2': Connection refused
Fri Jun 19 08:03:52 2009 [VMM][I]: ExitCode: 1
Fri Jun 19 08:03:52 2009 [VMM][E]: Error live-migrating VM, unable to connect to 'test2': Connection refused
Fri Jun 19 08:03:52 2009 [LCM][I]: Fail to life migrate VM. Assuming that the VM is still RUNNING (will poll VM).
Fri Jun 19 08:03:52 2009 [VMM][I]: Connecting to uri: qemu:///system
Fri Jun 19 08:03:52 2009 [VMM][I]: ExitCode: 0
Fri Jun 19 08:03:52 2009 [VMM][I]: Monitor Information:
	CPU   : -1
	Memory: 890880
	Net_TX: -1
	Net_RX: -1



I also tried  to do migration but got the error message:
Fri Jun 19 08:06:24 2009 [LCM][I]: New VM state is SAVE_MIGRATE
Fri Jun 19 08:06:31 2009 [VMM][I]: Connecting to uri: qemu:///system
Fri Jun 19 08:06:31 2009 [VMM][I]: ExitCode: 0
Fri Jun 19 08:06:31 2009 [LCM][I]: New VM state is PROLOG_MIGRATE
Fri Jun 19 08:06:31 2009 [TM][I]: tm_mv.sh: Will not move, source and destination are equal
Fri Jun 19 08:06:31 2009 [LCM][I]: New VM state is BOOT
Fri Jun 19 08:06:31 2009 [VMM][I]: Connecting to uri: qemu:///system
Fri Jun 19 08:06:31 2009 [VMM][I]: error: Failed to restore domain from /mnt/OpenNebula/VMDir/53/images/checkpoint
Fri Jun 19 08:06:31 2009 [VMM][I]: error: operation failed: cannot read domain image
Fri Jun 19 08:06:31 2009 [VMM][I]: ExitCode: 1
Fri Jun 19 08:06:31 2009 [VMM][E]: Error restoring VM, Failed to restore domain from /mnt/OpenNebula/VMDir/53/images/checkpoint
Fri Jun 19 08:06:31 2009 [LCM][I]: Fail to boot VM.
Fri Jun 19 08:06:31 2009 [DiM][I]: New VM state is FAILED
oneadmin at frontend:/var/log/one$ 

I think this problem is related the file access rights.
root at test2:/mnt/OpenNebula/VMDir/53/images#  ls -l;
total 12797424
-rw------- 1 root     root      206845156 2009-06-19 08:06 checkpoint
-rw-r--r-- 1 oneadmin nogroup         550 2009-06-18 23:36 deployment.0
-rwxrwxrwx 1 oneadmin nogroup 12884901888 2009-06-19 07:40 disk.0

It can be seen that the checkpoint file generated is owned by root while I think Open Nebula operates everything with the oneadmin account.  Is this a bug in the Open Nebula code or in my own setup?

Thank you very much.
--
Shi Jin, PhD