[AG-TECH] Bridge server

Niall Moran niall.moran at ichec.ie
Wed Apr 19 11:35:14 CDT 2006


Hi,

Could you send me this patch as it sounds like it is very useful.

Cheers,

Niall.
-- 
--
| Niall Moran
| Systems Administrator
| Irish Centre for High-End Computing
 \niall.moran at ichec.ie
   --------------------------

On Wed, Apr 19, 2006 at 08:30:17AM +0200, Michael Braitmaier wrote:
> I am doing basically the same. I restrict the range of the ports for 
> unicast for a specific venue.
> 
> Config-File example:
> 
> [https://rusagvideo.rus.uni-stuttgart.de:8000/Venues/000001026deebc1400c0006c00230006555]
> type=Venue
> portMin=50096
> portMax=50099
> 
> One of the problems rising with this configuration method is that 
> normally AG selects ports on a random
> pattern put of the range you specified in the config file.
> Ports for rat and vic are allocated sequentially.
> So first rat gets assigned 50096 for example.
> When the port for vic should  be determined, it can happen due to the 
> nature of the random allocation
> that for vic also 50096 is initially selected. This of course leads to a 
> "Address already in use" error.
> I avoided the problem by patching the AccessGrid files responsible for 
> port allocation to keep a list
> of ports which are in use and have the allocation algorithm first check 
> if a port the algorithm wants to allocate
> isn't in use yet.
> Otherwise you have to restart the bridge server until you don't get the 
> "address already in use" error to be sure you really have
> video and audio correctly bridged.
> 
> Michael
> 
> 
> Jeremy Mann schrieb:
> 
> >Thomas D. Uram said:
> > 
> >
> >>Which version of AG software are you using for BridgeServer and
> >>VenueServer?
> >>Can you post your full bridge cfg file?
> >>   
> >>
> >
> >AG 2.4. Attached is the config file. Worth noted is that I no longer get
> >those python errors, however, now when I start it, several of the venues
> >aren't bridged because the bridgeserver says the address is already in use
> >
> >
> > 
> >
> 
> 
> -- 
> ------------------
> Dipl.-Inf. Michael Braitmaier
> HLRS - Visualization / Video Conferencing
> University of Stuttgart
> Germany
> Phone: ++49 711 685 5996
> Fax  : ++49 711 682 357
> Website: http://www.hlrs.de/people/braitmaier/
> 
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