[Paraview] paraview - client-server

[burlen]

So to be sure about what you're saying: Your .pvsc script ssh's to the 
front end and submits a batch job which when it's scheduled , your batch 
script creates a -R style tunnel and starts pvserver using PV reverse 
connection. ? or are you using portfwd or a second ssh session to 
establish the tunnel ?

If you're doing this all from your .pvsc script without a second ssh 
session and/or portfwd that's awesome! I haven't been able to script 
this, something about the batch system prevents the tunnel created 
within the batch job's ssh session from working. I don't know if that's 
particular to this system or a  general fact of life about batch systems.

Question: How are you creating the tunnel in your batch script?

Sean Ziegeler wrote:
> Both ways will work for me in most cases, i.e. a "forward" connection 
> with ssh -L or a reverse connection with ssh -R.
>
> However, I find that the reverse method is more scriptable.  You can 
> set up a .pvsc file that the client can load and will call ssh with 
> the appropriate options and commands for the remote host, all from the 
> GUI.  The client will simply wait for the reverse connection from the 
> server, whether it takes 5 seconds or 5 hours for the server to get 
> through the batch queue.
>
> Using the forward connection method, if the server isn't started soon 
> enough, the client will attempt to connect and then fail.  I've always 
> had to log in separately, wait for the server to start running, then 
> tell my client to connect.
>
> -Sean
>
> On 02/06/10 12:58, burlen wrote:
>> Hi Pat,
>>
>> My bad. I was looking at the PV wiki, and thought you were talking about
>> doing this without an ssh tunnel and using only port forward and
>> paraview's --reverse-connection option . Now that I am reading your
>> hpc.mil post I see what you mean :)
>>
>> Burlen
>>
>>
>> pat marion wrote:
>>> Maybe I'm misunderstanding what you mean by local firewall, but
>>> usually as long as you can ssh from your workstation to the login node
>>> you can use a reverse ssh tunnel.
>>
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