Re: [Condor-users] Virtual Machine Configuration varibles-VMP_HOST_MACHINE

["Jaeyoung Yoon" <jaeyoungyoon@xxxxxxxxx>]

Hi Johson,

Please refer to the manual
"3.12.6 Running Condor Jobs within a VMware or Xen Virtual Machine Environment"

http://www.cs.wisc.edu/condor/manual/v7.0/3_12Setting_Up.html#27746

Let's think about this situation.
1. You installed Condor on 5 your Windows machines and the Windows
machines are connected to your Condor pool. In this case, your Condor
pool consists of 5 Windows machines.

But you might want to use some Linux machines in your Condor pool. So
you installed VMware and created a Linux VM on one of your 5 Windows
machines. Also you installed Condor inside the Linux VM. So when you
started the LInux VM, your pool seems to have 5 Windows machines and 1
Linux machine. But actually one Windows and one Linux are on the same
physical machine.

VMP_VM_LIST and VMP_HOST_MACHINE parameters can be used for this situation.
Let's assume your host machine name is host.mydomain.com(or IP
address) and the domain name of your VM is vmhost.mydomain.com(or IP
address).

When you specify VMP_VM_LIST = vmhost.mydomain.com in Condor
configuration file for host machine and specify VMP_HOST_MACHINE =
host.mydomain.com in Condor configuration file inside VM, your Windows
machine will be disabled in your Condor pool. So your pool seems to
have 4 Windows machines and 1 Linux machine.

Also we need to know keyboard/mouse events on host machine inside VM.
All host information will be delivered to Condor inside VM. That is,
Machine ClassAd for host Window machine will be delivered to Condor
inside VM with prefix HOST_.

So you can use any machine ClassAd attributes of host machine in your
Condor configuration for Condor inside VM.

Regards,
jaeyoung



On Fri, Apr 25, 2008 at 6:17 AM, JohnsonKoilraj <johnson.raj@xxxxxxxxx> wrote:
>
>  Hi,
>
>  Can anybody can explain what is the use of the Macro VMP_HOST_MACHINE &
> VMP_VM_LIST
>
>
>  i) VMP_HOST_MACHINE  = xxx
>
>       what is the purpose of this macro.
>       what will be the effect in inner virtual machine when we specify this
> macro in host machine.
>       whether inner virtual machines HOST NAME will be xxx
>
>  ii) VMP_VM_LIST = xxx, yyy.
>
>            If we declare some host name or IP address , is it the inner
> virtual machine will take host name or
>  IP address from this VMP_VM_LIST value list
>
>
>
>  Thanks in advance by
>  Johnson
>
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