<div><div><div dir="auto">Hi Dounin , What do you mean with smaller cache size?, proxy buffer size for example?</div></div><div dir="auto"><br></div><div dir="auto">I'm going to make the change you suggest.<br></div><div dir="auto"><br></div><div><div class="gmail_quote"><div dir="ltr">El El mar, nov. 20, 2018 a las 7:49 a. m., Maxim Dounin <<a href="mailto:mdounin@mdounin.ru" target="_blank">mdounin@mdounin.ru</a>> escribió:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello!</blockquote></div></div></div><div><div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
<br><br>
> the proxy and the IIS server is 1gb network, very fast ,<br>
<br>
As per the error message, your backend fails to accept new <br>
connections in a reasonable time. You may want to look at the <br>
backend to find out why it cannot accept new connections.<br>
<br>
One of the possible reasons might be that keepalive connections <br>
cache you've configured is too large for your backend:<br>
<br>
> upstream backend {<br>
> server 192.168.X.11:80; ## servidor web en windows<br>
> keepalive 15;<br>
<br>
With "keepalive 15" nginx will keep open up to 15 connections in <br>
each worker proccess - that is, up to (15 * worker_processes) in <br>
total, and this may be too many for your backend.<br>
<br>
Try switching off keepalive and/or using smaller cache size to see <br>
if it helps.<br>
<br>
-- <br>
Maxim Dounin<br>
<a href="http://mdounin.ru/" rel="noreferrer" target="_blank">http://mdounin.ru/</a><br>
_______________________________________________<br>
nginx mailing list<br>
<a href="mailto:nginx@nginx.org" target="_blank">nginx@nginx.org</a><br>
<a href="http://mailman.nginx.org/mailman/listinfo/nginx" rel="noreferrer" target="_blank">http://mailman.nginx.org/mailman/listinfo/nginx</a><br>
</blockquote></div></div>
</div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">rickygm<br><br><a href="http://gnuforever.homelinux.com" target="_blank">http://gnuforever.homelinux.com</a></div>