[AG-TECH] AG3 and AG2.4 server on same machine

[Derek Piper]

	Having just run into the same problem myself, I agree that would indeed 
be a smart idea. It would save editing of the config files just to move 
the port range. Many people aren't going to want to have to fiddle in 
order to get things to work.
	I'm not even sure why the default was kept the same between AG2 and AG3 
when it's obvious they'll have to be run side-by-side for quite a while 
as people gradually change over.

	Derek

Michael Braitmaier wrote:
> I am in the progress of setting up AG3 and AG2.4 servers on the same 
> machine Fedora Core 5.
> When I now run the AG2.4 server with option -P 9000 to move it to the 
> appropriate port to avoid port
> overlapping of the two servers, it gives me the following output:
> 
> Server: https://agserver.hlrs.de:9000/VenueServer
> Event Port: 8002 Text Port: 8004 Data Port: 8006
> Default Venue Url: https://agserver.hlrs.de:9000/Venues/default
> 
> This gives me the conclusion that the server listens on 9000 but events, 
> text and data arrives at 8002,8004 and 8006 which would then
> overlap with a second server running on the machine?
> 
> In fact when running the AG3 server in parallel it doesnt start, leaving 
> with the follwoing error message:
> 
> Couldn't listen on any:8002: (98, 'Address already in use').
> Error occurred running server: Couldn't listen on any:8002: (98, 'Address
> already in use').
> Traceback (most recent call last):
>  File "/usr/lib/python2.4/logging/handlers.py", line 71, in emit
>    if self.shouldRollover(record):
>  File "/usr/lib/python2.4/logging/handlers.py", line 143, in shouldRollover
>    self.stream.seek(0, 2)  #due to non-posix-compliant Windows feature
> ValueError: I/O operation on closed file
> Exception in thread ftps server:
> Traceback (most recent call last):
>  File "/usr/lib/python2.4/threading.py", line 442, in __bootstrap
>    self.run()
>  File "/usr/lib/python2.4/threading.py", line 422, in run
>    self.__target(*self.__args, **self.__kwargs)
>  File "/usr/lib/python2.4/site-packages/AccessGrid/FTPSServer.py", line 66,
> in run
>    log_obj=log)
>  File "/usr/lib/python2.4/site-packages/AccessGrid/FTPS/ftps_server.py", 
> line
> 317, in __init__
>    self.bind((self.ip, self.port))
>  File "/usr/lib/python2.4/asyncore.py", line 304, in bind
>    return self.socket.bind(addr)
>  File "<string>", line 1, in bind
> error: (98, 'Address already in use')
> 
> Wouldn't it make sense to alter the VenueServer to have the whole port used
> range moved based on the base port given with the switch -p ?
> 
> for example
> 
> VenueServer24 -p 8000
> Event: 8002 Text: 8004 Data: 8006
> 
> VenueServer - p 9000
> Event: 9002 Text: 9004 Data: 9006
> 
> I think this would at least make sense in AG3 for the future which also 
> allows to run it in parallel with Ag2.4, when launching AG3 on ports 
> different than 8000.
> 
> Michael
> 

-- 
Derek Piper - dcpiper at indiana.edu - (812) 856 0111
IRI 323, School of Informatics
Indiana University, Bloomington, Indiana