Maximum number of descriptors supported by select() is 1024 while connecting to upstream

Server NGINX
1

I am getting following error in my nginx logs and I don’t think its
related to the worker connections. I am on a windows 7 machine.

I think the problem is to do with proxy. Any idea how to resolve this?

ERROR LOG:
2015/04/21 09:32:28 [error] 9304#11016: *41311 maximum number of
descriptors supported by select() is 1024 while connecting to upstream,
client: 127.0.0.1, server: localhost, request: “GET
/content/fci/en/home/index.html HTTP/1.1”, upstream:
“http://127.0.0.1:3000/content/fci/en/home/index.html”, host:
“localhost:4502”

NGINX.CONF:

server {
listen 4501;
server_name localhost;
#charset koi8-r;
#access_log /var/log/nginx/host.access.log main;
root C:/D_DRIVE/Installables/IEA/nginx-1.6.2/html;
index index.html index.htm;
include
C:/D_DRIVE/Installables/IEA/nginx-1.6.2/conf.d/include/falcon.conf;
location ~* ^.+.(jpeg|gif|png|jpg|js|css|ico|woff|svg|ttf|json) {
proxy_pass http://localhost:4502;
}

location / {

    proxy_redirect off;
    proxy_set_header Host $host:$server_port;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    client_max_body_size 10m;
    client_body_buffer_size 128k;
    proxy_connect_timeout 90;
    proxy_send_timeout 90;
    proxy_read_timeout 90;
    proxy_buffers 32 4k;

    proxy_set_header authoring true;
    proxy_pass http://localhost:3000;
}

#error_page  404              /404.html;

# redirect server error pages to the static page /50x.html
#
error_page   500 502 503 504  /50x.html;
location = /50x.html {
    root   C:/D_DRIVE/Installables/IEA/nginx-1.6.2/html;
}

}

2

Hello!

On Tue, Apr 21, 2015 at 03:40:40PM +0200, Devika R. wrote:

“http://127.0.0.1:3000/content/fci/en/home/index.html”, host:
“localhost:4502”

Quoting http://nginx.org/en/docs/windows.html:

: A worker can handle no more than 1024 simultaneous connections.

You may try recompiling nginx with bigger FD_SETSIZE, see
Building nginx on the Win32 platform with Visual C. But in
general it’s better idea to switch to UNIX if you are going to use
nginx in production.

–
Maxim D.
http://nginx.org/

3

Devika R. Wrote:

I am getting following error in my nginx logs and I don’t think its
related to the worker connections. I am on a windows 7 machine.

I think the problem is to do with proxy. Any idea how to resolve this?

ERROR LOG:
2015/04/21 09:32:28 [error] 9304#11016: *41311 maximum number of
descriptors supported by select() is 1024 while connecting to

Try this version: http://nginx-win.ecsds.eu/

Posted at Nginx Forum:

4

itpp2012 wrote in post #1172401:

Devika R. Wrote:

I am getting following error in my nginx logs and I don’t think its
related to the worker connections. I am on a windows 7 machine.

I think the problem is to do with proxy. Any idea how to resolve this?

ERROR LOG:
2015/04/21 09:32:28 [error] 9304#11016: *41311 maximum number of
descriptors supported by select() is 1024 while connecting to

Try this version: http://nginx-win.ecsds.eu/

Posted at Nginx Forum:
Re: maximum number of descriptors supported by select() is 1024 while connecting to upstream

I don’t think the problem is due to number of worker threads as other
very block of ‘server config’ seems to work perfectly fine. So I think I
have somehow messed up the configuration where in its going in a loop or
something and hence wanted to know if anyone has faced the same thing.

5

Dear Devika.

Am 21-04-2015 15:40, schrieb Devika R.:

“http://127.0.0.1:3000/content/fci/en/home/index.html”, host:
“localhost:4502”

Do you have read this right? :wink:

http://nginx.org/en/docs/windows.html

Due to this and some other known issues version of nginx for Windows is
considered to be a beta version.

Known issues

 A worker can handle no more than 1024 simultaneous connections.

BR Aleks