[hobbit] Proxy

[Brodie, Kent]

One question I didn't get answered (or, if I did, I missed it!)

What IP address do I list in the bb-hosts file for the servers (the ones
it can't really see, but the proxy can)?  

Since I can't ping those hosts from my main BB server, but I still want
those hosts listed- I'm a bit confused..  :-)  

-----Original Message-----
From: Henrik Stoerner [mailto:henrik at hswn.dk] 
Sent: Friday, July 14, 2006 4:24 PM
To: hobbit at hswn.dk
Subject: Re: [hobbit] Proxy

bbproxy is written so it can run as a stand-alone application. So
unless you want to run network tests against the cluster nodes
(your next question), then you can just copy the bbproxy executable
over to the head node and run it by itself.

However, since you probably also want to do a ping test of the cluster
nodes, it would make the most sense to do a Hobbit server installation
on the head node. The you would disable everything in hobbitlaunch.cfg,
except the bbproxy and the network test tasks.


Regards,
Henrik

On Fri, Jul 14, 2006 at 03:47:03PM -0500, Brodie, Kent wrote:
> Followup:
> 
> What is the typical or preferred way of "running bbproxy" ?   Do I
> simply fire up the bbproxy executable, feeding it the few options it
> needs, or do I set up a "hobbit server" on that node with
> specially-configured files found in ../server/etc?  
> 
> 
> ---------------------------------------------------------
> Kent C. Brodie - brodie at phys.mcw.edu
> Department of Physiology
> Medical College of Wisconsin
> (414) 456-8590
> -----Original Message-----
> From: Henrik Stoerner [mailto:henrik at hswn.dk] 
> Sent: Friday, July 14, 2006 3:34 PM
> To: hobbit at hswn.dk
> Subject: Re: [hobbit] Proxy
> 
> On Fri, Jul 14, 2006 at 02:18:58PM -0500, Brodie, Kent wrote:
> > Hi- can someone briefly explain how the bbproxy stuff works?      We
> > have a cluster whose "head node" is accessible, but the cluster
nodes
> > are hidden behind that server.
> > 
> > If someone can explain how something like this is set up, that'd be
> > super..  
> > 
> > =============================================================
> (network)
> > [hobbit server]       [most of my nodes]      [head node]
> >                                                   ||
> >                                                   || 
> >                                              [cluster nodes]
> 
> Since your cluster nodes can talk to the head node, and the head node
> can talk to the hobbit server, the most simple solution would be to
run
> bbproxy on the head node of the cluster.
> 
> Your cluster nodes would then use the head node's bbproxy as their
> BBDISPLAY server. bbproxy on the head node would be configured to
> forward messages to the real hobbit server.


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