OpenVZ Forum: Support » *SOLVED* Does live migration between different kernel versions supportted?

Home » General » Support » *SOLVED* Does live migration between different kernel versions supportted?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

*SOLVED* Does live migration between different kernel versions supportted? [message #11569]

Tue, 27 March 2007 10:23

shixi
Messages: 8
Registered: March 2007
Location: China

Junior Member

I have two boxes with Redhat AS4 installed. The openvz kernel is 2.6.18-ovz028test018.1
I need to update the kernel to kernel-2.6.18-ovz028stab021.1 for both boxes. But my expect is do not stop the VE for the update. So the problem is I have to do live migration between different kernel version. I tested it, checked with vzlist, it's seems ok. But the ssh connection to the VE broken during the live migration. Does openvz support this feature?

[Updated on: Fri, 30 March 2007 08:55] by Moderator

Report message to a moderator

Re: Does live migration between different kernel versions supportted? [message #11604 is a reply to message #11569]

Wed, 28 March 2007 07:00

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

well, actually we even support live migration from 2.6.9 stable to 2.6.18 stable.
however, before 2.6.18 become stable I remember there were some changes which could prevent earlier 2.6.18 -> to older 2.6.18 migrations...

In your case it looks like it works, but connections were dropped?

http://static.openvz.org/userbars/openvz-developer.png

Report message to a moderator

Re: Does live migration between different kernel versions supportted? [message #11605 is a reply to message #11604]

Wed, 28 March 2007 07:05

shixi
Messages: 8
Registered: March 2007
Location: China

Junior Member

Thanks for your reply.

Yes, I test it adain, live migration from test018.1 to stab021.1 works fine. But as stab023.1 released, the live migration from stab021.1 or test018.1 to stab023.1 failed.
Following is the error message.

[root@dst96 ~]# vzlist
VEID NPROC STATUS IP_ADDR HOSTNAME
1002 12 running 15.244.80.224 -
[root@dst96 ~]# vzmigrate --online 15.244.81.233 1002
OPT:--online
OPT:15.244.81.233
Starting online migration of VE 1002 on 15.244.81.233
Preparing remote node
Initializing remote quota
Syncing private
Live migrating VE
Syncing 2nd level quota
Error: Failed to undump VE
vzquota : (error) Quota is not running for id 1002

Report message to a moderator