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Reverse Proxy with 500k connections

March 07, 2017 02:50PM
Hi,

we are operating native nginx 1.8.1 on RHEL as a reverse proxy.
The nginx routes requests to a backend server that can be reached from the proxy via a single internal IP address.
We have to support a large number of concurrent websocket connections - say 100k to 500k.

As we don't want to increase the number of proxy instances (with different IPs) and we cannot use the "proxy_bind transarent" option (was introduced in a later nginx release, upgrade is not possible) we wanted to configure the nginx to use different source IPs then routing to the backend. Thus, we want nginx to select an available source ip + source port when a connection is established with the backend.

For that we assigned ten internal IPs to the proxy server and used the proxy_bind directive bound to 0.0.0.0.
But this approach seems not to work. The nginx instance seems always use the first IP as source IP.
Using multiple proxy_bind's is not possible.

So my question is: How can I configure nginx to select from a pool of source IPs? Or generally: to overcome the 64k problem?

Best Regards
Lars

------- extract from config

upstream backend {
server 192.168.1.21:443;
}

server {
listen 443 ssl;
proxy_bind 0.0.0.0;

location /service {
proxy_pass https://backend;
...
}
}
Subject Author Posted

Reverse Proxy with 500k connections

larsg March 07, 2017 02:50PM

Re: Reverse Proxy with 500k connections

Nelson Marcos March 07, 2017 04:14PM

Re: Reverse Proxy with 500k connections

Rainer Duffner March 07, 2017 04:24PM

Re: Reverse Proxy with 500k connections

Tolga Ceylan March 07, 2017 05:12PM

Re: Reverse Proxy with 500k connections

Andrei Belov March 07, 2017 06:40PM

Re: Reverse Proxy with 500k connections

Tolga Ceylan March 07, 2017 07:58PM

Re: Reverse Proxy with 500k connections

Maxim Konovalov March 08, 2017 06:18AM

Re: Reverse Proxy with 500k connections

larsg March 09, 2017 09:52AM

Re: Reverse Proxy with 500k connections

larsg March 09, 2017 12:20PM

RE: Reverse Proxy with 500k connections

Reinis Rozitis March 09, 2017 12:10PM

Re: RE: Reverse Proxy with 500k connections

larsg March 09, 2017 01:10PM

Re: Reverse Proxy with 500k connections

Konstantin Pavlov March 09, 2017 02:26PM

Re: Reverse Proxy with 500k connections

larsg March 13, 2017 10:22AM

Re: Reverse Proxy with 500k connections

foxgab July 14, 2017 02:15AM

Re: Reverse Proxy with 500k connections

Maxim Konovalov March 08, 2017 06:20AM

Re: Reverse Proxy with 500k connections

Maxim Konovalov March 09, 2017 04:34AM



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