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Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

July 20, 2013 05:20AM
On Jul 20, 2013, at 11:52 , momyc wrote:

>> it is useless to buffer a long polling connection in a file.
>
> For Nginx there is no any difference between long-polling or other request.
> It would't even know. All it should care is how much to buffer and for how
> long to keep those buffers until droping them and aborting request. I do not
> see any technical problem here.

There is no technical problem. There is an issue of practical utility of
such backend. There are two types of backend:

1) The first one uses a large amount of memory to process request. It should
send a generated response as soon as possible and then moves to a next request.
nginx can buffer thousands of such responses and sends them to clients.
Persistent connection between nginx and backend and nginx buffering help in
this case. Multiplexing just complicates the backend logic without any benefit.
The bottle neck here is not number of connections to a single listen port (64K)
but amount of memory.

2) The second type of backend uses a small amount of memory per request,
can process simultaneously thousands of clients and does NOT need buffering
at all. Multiplexing helps such backends but only together with a flow control.


--
Igor Sysoev
http://nginx.com/services.html

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Subject Author Posted

Why Nginx Doesn't Implement FastCGI Multiplexing?

zjerryj March 09, 2013 09:44AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Maxim Dounin March 11, 2013 08:14AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 19, 2013 09:02PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

B.R. July 19, 2013 09:28PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 19, 2013 10:05PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 19, 2013 10:50PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 19, 2013 10:59PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 19, 2013 11:07PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

B.R. July 19, 2013 11:42PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 19, 2013 11:55PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

B.R. July 20, 2013 12:12AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Igor Sysoev July 20, 2013 12:28AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 12:36AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 12:41AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 12:43AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 01:02AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 12:51AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Igor Sysoev July 20, 2013 12:42AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 12:50AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

GreenGecko July 20, 2013 01:02AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Igor Sysoev July 20, 2013 01:02AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 01:05AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 01:11AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Igor Sysoev July 20, 2013 01:10AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 01:23AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 01:25AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Igor Sysoev July 20, 2013 01:44AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 03:52AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

momyc July 20, 2013 04:17AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Igor Sysoev July 20, 2013 05:20AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

DevNginx October 04, 2013 09:43AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Maxim Dounin October 04, 2013 12:50PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

DevNginx October 05, 2013 11:12AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Wter S. September 14, 2014 03:24PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Maxim Dounin September 15, 2014 06:44AM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Wter S. September 15, 2014 12:18PM

Re: Why Nginx Doesn't Implement FastCGI Multiplexing?

Maxim Dounin September 16, 2014 08:02AM



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