Xen users - Apr 2008 - Xen and Torque

Dear Xen users.

Have anyone tried to integrate Xen with Torque resource management system?
Could you please help me with an advice for a system I''m developing
that
relies on torque.
Let me describe the system first.

The part of the system that talks with torque should request a certain
amount on nodes of a cluster and launch there a virtual machine instance
(one vm instance per host).
Thus the instantiations of virtual machine would result into a virtual
cluster (after some iptabling).

I''ve developed this system already, but it doesn''t deal with
torque. I have
a central utility which send requests to computational nodes to manage vms
on these nodes.
And now I''m about to integrate this system with torque.

I''ve managed to create a script that launches virtual machines on a
selected
amount of nodes. It looks like this:
on the central host:
----
#!/bin/bash

#PBS -S /bin/bash

pbsdsh -v /home/torque/myscript.sh
----

on nodes:
----
#!/bin/bash

pushd /opt/xen
sudo /usr/sbin/xm create vnode.cfg
popd
----

The problem is that several seconds after the launching the /usr/sbin/xm
(either with console or without it) returns the execution control and the
torque switches this node to "free" state. But in my case the node
should be
in "job-exclusive" state all the time the virtual machine on this node
is
online.

How could I achive this?

Thanks in advance.


-- 
Best regards,
Artem Pervin


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On Sat, Apr 26, 2008 at 3:32 PM, Artem Y. Pervin <artempervin@gmail.com>
wrote:
> Dear Xen users.
>
> Have anyone tried to integrate Xen with Torque resource management system?
> Could you please help me with an advice for a system I''m
developing that
> relies on torque.
> Let me describe the system first.
>
> The part of the system that talks with torque should request a certain
> amount on nodes of a cluster and launch there a virtual machine instance
> (one vm instance per host).
> Thus the instantiations of virtual machine would result into a virtual
> cluster (after some iptabling).
>
> I''ve developed this system already, but it doesn''t deal
with torque. I
> have a central utility which send requests to computational nodes to manage
> vms on these nodes.
> And now I''m about to integrate this system with torque.
>
> I''ve managed to create a script that launches virtual machines on
a
> selected amount of nodes. It looks like this:
> on the central host:
> ----
> #!/bin/bash
>
> #PBS -S /bin/bash
>
> pbsdsh -v /home/torque/myscript.sh
> ----
>
> on nodes:
> ----
> #!/bin/bash
>
> pushd /opt/xen
> sudo /usr/sbin/xm create vnode.cfg
> popd
> ----
>
> The problem is that several seconds after the launching the /usr/sbin/xm
> (either with console or without it) returns the execution control and the
> torque switches this node to "free" state. But in my case the
node should be
> in "job-exclusive" state all the time the virtual machine on this
node is
> online.
>
> How could I achive this?
>
> Thanks in advance.
>
>
> --
> Best regards,
> Artem Pervin
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>


-- 
Regards--
Rishi Pathak
National PARAM Supercomputing Facility
Center for Development of Advanced Computing(C-DAC)
Pune University Campus,Ganesh Khind Road
Pune-Maharastra


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