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| nicks |
 Posted: Fri Dec 25, 2009 5:02 pm |
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Joined: 25 Dec 2009
Posts: 9
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Hi all,
I am implementing my first system in Erlang and have come quite a way, when I realized that I should be using OTP to build robust system, but I believe there is not enough documentations.
My system is a simple TCP client/server, with every new TCP message, I spawn a new process, which must *do something*. (In the end I am aiming for 20-40K messages/sec)
I have one supervisor process, while one worker process listens to incoming TCP socket, which in turns spawns new processes on the fly.
I also need to implement a simple FSM on worker process.
My question would be, which OTP behaviour I should be using? Do I need to combine OTP Supervisor,Gen_Server,Gen_Fsm? Or is only one of it is sufficient for my needs.
Thanks :)
Nick |
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| hao |
| Posted: Fri Jan 08, 2010 4:16 pm |
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Joined: 20 Aug 2007
Posts: 18
Location: Uppsala, Sweden
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I think combination of application, supervisor, gen_server and gen_fsm will do good to your system. Here is a pretty good tutorial on building a non-blocking TCP server using OTP principles, thanks to the author Serge Aleynikov. It is quite similar to the system you are building as well as your design idea. So have a look and enjoy! 
http://www.trapexit.org/Building_a_Non-blocking_TCP_server_using_OTP_principles
PS: This tutorial is from Documentation->Tutorials in this website. There are plenty of good tutorials out there which you can learn a lot from. |
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| MathewBracken |
| Posted: Wed Feb 24, 2010 9:22 am |
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Joined: 24 Feb 2010
Posts: 3
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Good implements.I think combination of application, supervisor, gen_server and gen_fsm will do good to your system.Thanks
Penny Stocks |
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| ericdesouza |
| Posted: Wed Mar 10, 2010 11:50 am |
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Joined: 09 Mar 2010
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Maybe you really want to use gen_fsm. That behaviour is usually chosen front-ends for protocols, where the protocol have certain states and need to handle requests differently depending on what state it is currently in.
But back to gen_server, we use gen_server for its features. It subscribes to system events for code-loading and gives you the code_change callback. It causes sasl-reports on crashes. You get a well known structure that helps code maintenance. Most importantly, it implements a well designed protocol for synchronous calls.
It is hard to say if OTP behaviors are right for you in this instance. |
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| wuji |
| Posted: Fri Aug 24, 2012 8:18 am |
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