[one-users] live-/migration not working, uknown error

[Adnan Pasic]

Hey Carlos,

thank you soo much for your help. By now I can finally migrate my machines
normally. The only problem I’, still having is the Live Migration!

This is what the log says:

 

n May 30 12:35:39 2011 [LCM][I]: New VM state is MIGRATE

Mon May 30 12:35:40 2011 [VMM][I]: Command execution fail: 'if [ -x
"/var/tmp/one/vmm/kvm/migrate" ]; then /var/tmp/one/vmm/kvm/migrate one-31
192.168.0.3; else                              exit 42; fi'

Mon May 30 12:35:40 2011 [VMM][I]: STDERR follows.

Mon May 30 12:35:40 2011 [VMM][I]: error: Unknown failure

Mon May 30 12:35:40 2011 [VMM][I]: ExitCode: 1

Mon May 30 12:35:40 2011 [VMM][E]: Error live-migrating VM, error: Unknown
failure

Mon May 30 12:35:40 2011 [LCM][I]: Fail to life migrate VM. Assuming that
the VM is still RUNNING (will poll VM).

Mon May 30 12:35:41 2011 [VMM][D]: Monitor Information:

        CPU   : 18

        Memory: 524288

        Net_TX: 300

        Net_RX: 1248

 

 

Is it possible that I somehow messed up the TLS encryption? I configured my
cloud according to this website
http://hpc.uamr.de/wissen/opennebula-workshop/

 

In one point on the website it says: “For live migration and secured VNC,
Transport Layer Security needs to be set up. A step by step guide can be
found in the TLS Setup Guide of Libvirt”.

However, I didn’t dothis part of the tutorial since I didn’t find these
steps in any of the other guides I was reading, including the official
opennebula-guide. Is there something I missed? Do I have to perform this TLS
Setup? A tiny bit of further help would be more than appreciated J

Thanks in advance!

 

 

Von: Carlos Martín Sánchez [mailto:cmartin at opennebula.org] 
Gesendet: Montag, 30. Mai 2011 12:22
An: Adnan Pasic
Cc: users at lists.opennebula.org
Betreff: Re: [one-users] live-/migration not working, uknown error

 

Hi Adnan,

This may be of help:
http://lists.opennebula.org/pipermail/users-opennebula.org/2010-September/00
2680.html

Regards,
Carlos.
--
Carlos Martín, MSc
Project Major Contributor
OpenNebula - The Open Source Toolkit for Cloud Computing
 <http://www.opennebula.org/> www.OpenNebula.org |
<mailto:cmartin at opennebula.org> cmartin at opennebula.org



On Mon, May 30, 2011 at 11:52 AM, Adnan Pasic <pqado at yahoo.de> wrote:

Hello,

unfortunately the problem is still there.

It says: error: unable to set ownership of
“/srv/cloud/one/var//29/images/checkpoint” to user 0:0: Operation not
permitted

Error saving VM state, error: Failed to save domain one-29 to
/srv/cloud/one/var//29/images/checkpoint

 

Please help, this is slowly  making me crazy


 

Von: Neumann, Steffen [mailto:sneumann at ipb-halle.de] 

Gesendet: Dienstag, 24. Mai 2011 16:59
An: Adnan Pasic; users at lists.opennebula.org

Betreff: RE: [one-users] live-/migration not working, uknown error

 

Hi,

check out the list archives:
http://lists.opennebula.org/htdig.cgi/users-opennebula.org/2011-April/005013
.html

Steffen

  _____  

From: users-bounces at lists.opennebula.org
[users-bounces at lists.opennebula.org] on behalf of Adnan Pasic
[pqado at yahoo.de]
Sent: 24 May 2011 14:47
To: users at lists.opennebula.org
Subject: [one-users] live-/migration not working, uknown error

Update: Okay, the issue with "virsh list" is gone. But still the problem
with migration / live migration pertains. 

Do you have to do some extra steps for live migration to work? Do you need
to create TLS keys or something, or is the standard tutorial enough for
everything to work?

 

The error still says: 

[VMM] [E]: Error saving VM state, error: Failed to save domain one-26 to
/srv/cloud/one/var//26/images/checkpoint

 

It seems the folder checkpoint can't get created, or the creation of the
folder is missing somewhere in the scripts, because when I browse through to
the folder /images there is no checkpoint folder inside.

 

I hope those infos are sufficient to narrow down the possible mistakes?


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