OpenVZ Forum: Support » [SOLVED] live migration checkpointing/dump error: iptables-save exited with 255

Home » General » Support » [SOLVED] live migration checkpointing/dump error: iptables-save exited with 255

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

[SOLVED] live migration checkpointing/dump error: iptables-save exited with 255 [message #29169]

Tue, 08 April 2008 02:29

wolvesled
Messages: 6
Registered: April 2008

Junior Member

hi,

I had encounter error in live migration, after some search (solve the problem in line 382 of vzmigrate), I locate that problem is with checkpoint, because live migration will create a dump (i.e. checkpoint) of the running ve, then restore in the destination ve.

here is the error:

# vzctl chkpnt 2000201
Setting up checkpoint...
        suspend...
        dump...
Can not dump VE: Invalid argument
Error: iptables-save exited with 255
Checkpointing failed

also I have read in some post that it is the bug of one previous kernel ( http://git.openvz.org/?p=linux-2.6.18-openvz;a=commit;h=6507 23f83a8685111fb3dee7073454861c446193).

my configuration:

platform: gentoo, well maintained
kernel version: 2.6.18-028stab053-r2
vzctl: 3.0.22
vzquota:3.0.11

it will be thankful if anyone could point me out.

[Updated on: Mon, 14 April 2008 03:14]

Report message to a moderator

Re: iptables-save exited with 255 [message #29170 is a reply to message #29169]

Tue, 08 April 2008 02:35

wolvesled
Messages: 6
Registered: April 2008

Junior Member

same problem in this one:

http://forum.openvz.org/index.php?t=tree&goto=26872& &srch=can+not+dump+ve#msg_26872

Report message to a moderator

Re: checkpointing error: iptables-save exited with 255 [message #29349 is a reply to message #29169]

Fri, 11 April 2008 06:51

wolvesled
Messages: 6
Registered: April 2008

Junior Member

I'm wondering if I did not name this thread correct, but that's the only thing I have with dump/checkpointing now.

Is that I should post this into the development section?

thanks for any advice.

Report message to a moderator

Re: checkpointing error: iptables-save exited with 255 [message #29355 is a reply to message #29169]

Fri, 11 April 2008 08:03

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

During the checkpointing phase, kernel tries to execute /sbin/iptables-save (or /usr/sbin/iptables-save) to save the iptables rules and stats. During the restore phase, it runs /sbin/iptables-restore.

If you do use iptables in your container, make sure these scripts exist and working.

If you do not use iptables, make sure these scripts exist and return 0 exit code. The simplest way to do that is

ln -sf /bin/true /sbin/iptables-save
ln -sf /bin/true /sbin/iptables-restore

Hope that helps.

Kir Kolyshkin

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

Report message to a moderator

Re: checkpointing error: iptables-save exited with 255 [message #29460 is a reply to message #29355]

Mon, 14 April 2008 03:13

wolvesled
Messages: 6
Registered: April 2008

Junior Member

hi kir,

thank you very much of the tip, I thought the iptables was with the virtual server, was trying to looking problems in kernel...

now the problem is solved, and I'm happy with the live migration.

thanks again!

Report message to a moderator

Previous Topic:	ztdummy accuracy worse in VE compared to HE
Next Topic:	Porting old server inside VE

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Jul 05 19:30:13 GMT 2025

Total time taken to generate the page: 0.01973 seconds