10 messages in ru.sysoev.nginxRe: Nginx response rate increases wit...| From | Sent On | Attachments |
|---|---|---|
| Asif Ali | Jun 15, 2009 11:19 pm | |
| Dave Cheney | Jun 15, 2009 11:54 pm | |
| Igor Sysoev | Jun 16, 2009 3:04 am | |
| Avleen Vig | Jun 16, 2009 3:26 am | |
| Igor Sysoev | Jun 16, 2009 3:54 am | |
| Dave Cheney | Jun 16, 2009 3:56 am | |
| Avleen Vig | Jun 16, 2009 4:34 am | |
| Asif Ali | Jun 17, 2009 6:19 am | |
| Igor Sysoev | Jun 17, 2009 6:29 am | |
| Dave Cheney | Jun 17, 2009 7:11 am |
| Subject: | Re: Nginx response rate increases with more upstream ports | |
|---|---|---|
| From: | Igor Sysoev (is...@rambler-co.ru) | |
| Date: | Jun 16, 2009 3:04:59 am | |
| List: | ru.sysoev.nginx | |
On Tue, Jun 16, 2009 at 11:50:16AM +0530, Asif Ali wrote:
Dear All, I am trying to resolve a particular issue that is not getting solved easily.
Nginx is able to route requests but the speed of routing is slowing down..when I am increasing the number of upstream ports.
I have an app which responds in under 500ms. When I route those requests through nginx to about 50 ports, nginx response rates increases to 1500-2500 ms whereas the app can handle large concurrent requests and there are as many as 50 ports.
I have tried this with both fair and e-y load balancer but with similar results.
I have also tuned nginx configuration for response times, timeouts etc but still I see similar results.
Can anyone advise me if they have experienced a similar problem earlier and if they have a solution for this?.
What do you mean by upstream ports ? This
upstream backend { server backend:9000; server backend:9001; server backend:9002; server backend:9003; ... }
?
In this case you run 50 backend processes and they compete for CPU.
-- Igor Sysoev http://sysoev.ru/en/