[Spread-users] Spread Configuration

John Lane Schultz jschultz at spreadconcepts.com
Mon Apr 30 11:00:47 EDT 2007

In general, running more daemons, so long as they are properly configured, will 
increase performance.  Usually you should run a spread daemon on each of the 
computers that will host client applications and have the clients connect to 
their local daemon.  In the configuration file, all of the daemons that can 
communicate using 1-hop broad/multicast (e.g. - within a LAN) should be listed 
in the same segment.

If you were to run a single daemon in a site and have clients connect remotely 
to the daemon (say all join the same group), then each time a client sent a 
message it would translate into N + 1 unicasts of that message -- once to the 
daemon and N times back to the clients.

If you ran a daemon on every computer that had clients, then a clients send 
would translate to a single reliable broad/multicast sent between the daemons. 
   All the client communication would be contained within the machines.


Wangbong Lee wrote:
> This is Q about Spread configuration.
>  From performance document in Spread web, it says that Spread can be 
> configured to use a single daemon in the network or to use one daemon in 
> every computer running group communication applications.
> It means that two configuration is possible in same network site, such 
> as one daemon configuration or multiple configuration.
> What is difference from two things? Does multiple daemon configuration 
> make better performance?
> Please, give comments.
> Thanks,
> --
> W. Lee, <leewb.AT.etri.re.kr, wangbong.AT.gmail.com>
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John Schultz
Spread Concepts LLC
Phn: 443 838 2200
Fax: 301 560 8875

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