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*SOLVED* checkpointing (in backups) sometimes fails [message #14210] Tue, 19 June 2007 12:40 Go to next message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
Once in a while, I get this error from my vzdump backup cron job:

ERRORS during backup - backup FAILED!

starting backup for VPS 109 (/data/vz/private/109) Tue Jun 19 04:07:33 2007
starting first sync /data/vz/private/109 to /data/vz/dump//tmp2793
suspend vps
Setting up checkpoint...
Error: No checkpointing support, unable to open /proc/cpt: No such file or directory
creating backup for  VPS 109 failed (2.33 minutes): command '/usr/sbin/vzctl chkpnt 109 --suspend' failed with exit code 16 at /usr/bin/vzdump line 107.


Then if I do a 'service vz restart', it works again.

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page

[Updated on: Thu, 21 June 2007 09:19] by Moderator

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Re: checkpointing (in backups) sometimes fails [message #14212 is a reply to message #14210] Tue, 19 June 2007 12:47 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
Well, nothing strange. The command `service vz restart` loads required kernel modules and checkpointing starts working.

HTH,
Vasily.

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Re: checkpointing (in backups) sometimes fails [message #14213 is a reply to message #14212] Tue, 19 June 2007 12:50 Go to previous messageGo to next message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
Ok, but why does it stop working then? The modules unloaded themselves?

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page

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Re: checkpointing (in backups) sometimes fails [message #14214 is a reply to message #14213] Tue, 19 June 2007 12:58 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
AFAIK the modules unload on `service vz stop` command, that is called, for example, on the node reboot.

Vasily.

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Re: checkpointing (in backups) sometimes fails [message #14216 is a reply to message #14214] Tue, 19 June 2007 13:07 Go to previous messageGo to next message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
Ok, but nothing smillar happened.

09:07:17 up 26 days, 19:43, 1 user, load average: 1.96, 6.31, 6.11

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page

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Re: checkpointing (in backups) sometimes fails [message #14217 is a reply to message #14216] Tue, 19 June 2007 13:17 Go to previous messageGo to next message
Vasily Tarasov is currently offline  Vasily Tarasov
Messages: 1345
Registered: January 2006
Senior Member
Probably you have peformed `service vz stop` manually?..
Anyway, you should somehow find out what unloads the required kernel modules Wink

Vasily.

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Re: checkpointing (in backups) sometimes fails [message #14218 is a reply to message #14217] Tue, 19 June 2007 13:27 Go to previous message
ugob is currently offline  ugob
Messages: 271
Registered: March 2007
Senior Member
No, the VE were not shut down nor the vz service... mystery.

Please read the manual before asking questions:
http://download.openvz.org/doc/OpenVZ-Users-Guide.pdf

Please have a look at the wiki before asking questions:
http://wiki.openvz.org/Main_Page

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