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bug in vzctl 3.0.23-1pve3 [message #38261]

Wed, 02 December 2009 17:46

fdef
Messages: 6
Registered: November 2009

Junior Member

hi all ,

I have a issue when i call vzctl with vps.mount/umount scripts.

Indeed, when i call vzctl start CTID, vps.umount is invoked intead of vps.mount...

2009-11-19T23:22:11+0100 vzctl : CT 102 : Starting container ...
2009-11-19T23:22:11+0100 vzctl : CT 102 : Error executing umount script /etc/vz/conf/vps.umount
2009-11-19T23:22:11+0100 vzctl : CT 102 : Setting CPU units: 1000
2009-11-19T23:22:11+0100 vzctl : CT 102 : Setting CPUs: 1
2009-11-19T23:22:11+0100 vzctl : CT 102 : Configure meminfo: 262144
2009-11-19T23:22:11+0100 vzctl : CT 102 : Set hostname: test
2009-11-19T23:22:11+0100 vzctl : CT 102 : File resolv.conf was modified
2009-11-19T23:22:11+0100 vzctl : CT 102 : Setting quota ugidlimit: 0
2009-11-19T23:22:12+0100 vzctl : CT 102 : Configure veth devices: veth102.0 
2009-11-19T23:22:12+0100 vzctl : CT 102 : Container start in progress...

Do you have any patch ?

Thx, fdef

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Re: bug in vzctl 3.0.23-1pve3 [message #38263 is a reply to message #38261]

Thu, 03 December 2009 05:50

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

Senior Member

(1) if container is appeared to be mounted, it is unmounted first (and during that phase umount script is executed)

(2) the message "error executing umount script" in the absense of other errors means your script exited with non-zero exit value.

(3) no, we don't have a patch; I don't see any bug here (except the return value of your own script which we can't control)

Kir Kolyshkin

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

[Updated on: Thu, 03 December 2009 05:52]

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Re: bug in vzctl 3.0.23-1pve3 [message #38325 is a reply to message #38263]

Mon, 07 December 2009 11:25

fdef
Messages: 6
Registered: November 2009

Junior Member

Ok thx for your explaination.

But, do you see any errors in my vps scripts?

root@test:/etc/vz/conf# cat vps.*
#!/bin/bash
source /etc/vz/vz.conf
source ${VE_CONFFILE}
mount --bind /home ${VE_ROOT}/home
mount --bind /vz/backups ${VE_ROOT}/backups
#!/bin/bash
source /etc/vz/vz.conf
source ${VE_CONFFILE}
umount ${VE_ROOT}/home
umount ${VE_ROOT}/backups

Cause i don't understand.

Nothings is mounted..

root@test:/etc/vz/conf# mount | grep 102

I start 102 contener, and nothings will be mount even vps.umount script start before vps.mount. And i'm not realy shure, vps.mount script start.

root@test:/etc/vz/conf# vzctl start 102
Starting container ...
umount: /var/lib/vz/root/102/home: not mounted
umount: /var/lib/vz/root/102/backups: not mounted
Error executing umount script /etc/vz/conf/vps.umount
Setting CPU units: 1000
Setting CPUs: 1
Configure meminfo: 262144
Set hostname: test
File resolv.conf was modified
Setting quota ugidlimit: 0
Configure veth devices: veth102.0 
Adding interface veth102.0 to bridge vmbr1 on CT0 for CT102
Container start in progress...

root@test:/etc/vz/conf# mount | grep 102

Do you think, if vps.umount exit with error status, the vps.mount script didn't start ?

root@test:/etc/vz/conf# vzctl stop 102
Stopping container ...
Container was stopped
umount: /home: not mounted
umount: /home: not mounted
umount: /var/lib/vz/backups: not mounted
umount: /var/lib/vz/backups: not mounted
Error executing umount script /etc/vz/conf/vps.umount

Thx fdef

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Re: bug in vzctl 3.0.23-1pve3 [message #38327 is a reply to message #38325]

Mon, 07 December 2009 13:04

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

Senior Member

The "Error executing umount script /etc/vz/conf/vps.umount" comes out because the last command executed in the vps.umount script exits with non-zero exit code. Therefore the script itself exits with the same code, vzctl detects this and prints the error.

I do not see any errors in your mount/umount scripts. Why don't you add some debugging into them to see what's going on. I suggest adding set +x to the beginning of both scripts, also you can print exit codes from mount/umount (echo $?). Finally, you can run those mount commands manually to check.

Kir Kolyshkin

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Re: bug in vzctl 3.0.23-1pve3 [message #38346 is a reply to message #38327]

Wed, 09 December 2009 13:16

fdef
Messages: 6
Registered: November 2009

Junior Member

This directory is not mounted of course.. (-_-)

vzctl start 102
...
+ umount /var/lib/vz/root/102/home
umount: /var/lib/vz/root/102/home: not mounted
+ umount /var/lib/vz/root/102/backups
umount: /var/lib/vz/root/102/backups: not mounted
Error executing umount script /etc/vz/conf/vps.umount
...

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Re: bug in vzctl 3.0.23-1pve3 [message #38348 is a reply to message #38346]

Wed, 09 December 2009 13:29

fdef
Messages: 6
Registered: November 2009

Junior Member

Ok i find this issue !

As i told you, if the vps.umount script exit with non-zero status the vps.mount script not invoked.

So, when i put "echo I am the vps.mount script" in the last line of my vps.umount all is ok

take a look :

+ mount --bind /home /var/lib/vz/root/102/home
+ mount --bind /vz/backups /var/lib/vz/root/102/backups
+ echo 'I am the vps.mount script'
I am the vps.mount script
Container is mounted

Without, this echo line, i have the same issue that at the beginning

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