[torqueusers] torque server on a virtual machine

André Gemünd andre.gemuend at scai.fraunhofer.de
Wed Jan 30 01:03:24 MST 2013


Hi Thomas,

you are probably using NAT forwarding (aka virbr0). See here how to configure the bridge: http://wiki.libvirt.org/page/Networking#Bridged_networking_.28aka_.22shared_physical_device.22.29

Greetings
André

----- Ursprüngliche Mail -----
> Dear torque users and developers:
> 
> I have a very strange problem. I set up a kernel-based virtual
> machine
> (KVM) on an OpenSuse 12.1 system. This virtual machine should be used
> as
> the torque server for a small cluster. Installation went fine but
> when
> the first client tries to connect, I get thousands of these error
> massages:
> PBS_Server;Svr;PBS_Server;LOG_ERROR::is_request, bad attempt to
> connect
> from 10.0.2.2:1023 (address not trusted - check entry in
> server_priv/nodes)
> 
> The funny thing is that the IP address is not the IP of the client
> (10.0.2.11) but of the host running the virtual machine (10.0.2.2).
> Thus
> it seems that torque thinks that the request is coming from the
> KVM-server host and not the torque client. But there is definitely no
> pbs_mom running on 10.0.2.2. If 10.0.2.2 is added to the nodes file,
> pbsnodes shows this machine but with the data of 10.0.2.11. This has
> definitely something to do with the network setup to get KVM to work.
> For this a network bridge is needed. Does anyone know if this bridge
> is
> the problem and if I can configure it to send the original IP?
> Unfortunately, my knowledge about such a setting is very limited. But
> everything except torque seems to run nicely. Any other idea?
> 
> Thank you very much.
> Thomas
> 
> --
> ________________________________________________________________________________
> 
> Dr. Thomas E. Exner
> Theoretische Pharmazeutische Chemie & Biophysik
> Lehrstuhl Pharmazeutische Chemie
> Pharmazeutisches Institut
> Eberhard Karls Universität Tübingen
> Auf der Morgenstelle 8 (Haus B)
> 72076 Tübingen
> Germany
> 
> Tel.:    +49-(0)7071-2976969
> Mobil:   +49-(0)171-3807485
> Fax:     +49-(0)7071-295637
> E-Mail:  Thomas.Exner[at]uni-tuebingen.de
> 
> Fachbereich Chemie  und Zukunftskolleg
> Universität Konstanz
> 78457 Konstanz
> Germany
> 
> Tel.:   +49-(0)7531-882015
> Fax:    +49-(0)7531-883587
> E-Mail: Thomas.Exner[at]uni-konstanz.de
> ________________________________________________________________________________
> 
> _______________________________________________
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> torqueusers at supercluster.org
> http://www.supercluster.org/mailman/listinfo/torqueusers
> 

-- 
André Gemünd
Fraunhofer-Institute for Algorithms and Scientific Computing
andre.gemuend at scai.fraunhofer.de
Tel: +49 2241 14-2193
/C=DE/O=Fraunhofer/OU=SCAI/OU=People/CN=Andre Gemuend


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