# Multiple requests on balancer

**URL:** <https://www.ruby-forum.com/t/multiple-requests-on-balancer/192398>\
**Category:** NGINX\
**Created:** [July 29, 2010, 4:05pm UTC](https://www.ruby-forum.com/t/multiple-requests-on-balancer/192398 "2010-07-29T16:05:38Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Sanel\_Z](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/85f322/32.png) [@Sanel\_Z](https://www.ruby-forum.com/u/Sanel_Z)\
**Post date:** [July 29, 2010, 4:05pm UTC](https://www.ruby-forum.com/t/multiple-requests-on-balancer/192398/1 "2010-07-29T16:05:38Z")

</div>

Hi guys,

I recently configured Nginx with Rails/Mongrel (mostly picking advices  
from wiki)  
where Nginx is doing balancing/proxy-ing on 5 Mongrels. It works  
perfectly 🙂

However, I noticed how each request to Nginx is routed to every Mongrel:  
is this  
desired behavior or I, possibly, did something wrong with  
configuration (couldn’t  
figured out yet). Any ideas to make Nginx route request only to single  
Mongrel  
instance?

Thanks.

Best,  
Sanel

---

<div class="post-metadata">

**Author:** ![Sanel\_Z](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/85f322/32.png) [@Sanel\_Z](https://www.ruby-forum.com/u/Sanel_Z)\
**Post date:** [July 29, 2010, 4:15pm UTC](https://www.ruby-forum.com/t/multiple-requests-on-balancer/192398/2 "2010-07-29T16:15:35Z")

</div>

Hi,

> However, I noticed how each request to Nginx is routed to every Mongrel:  
> is this  
> desired behavior or I, possibly, did something wrong with  
> configuration (couldn’t  
> figured out yet). Any ideas to make Nginx route request only to single  
> Mongrel  
> instance?

You did something wrong.

Best regards,  
Piotr S. \< [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) \>

---

<div class="post-metadata">

**Author:** ![Sanel\_Z](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/85f322/32.png) [@Sanel\_Z](https://www.ruby-forum.com/u/Sanel_Z)\
**Post date:** [July 29, 2010, 4:59pm UTC](https://www.ruby-forum.com/t/multiple-requests-on-balancer/192398/3 "2010-07-29T16:59:30Z")

</div>

Thank you for quick reply.

Below is working config file I’m using to test issue against.  
I also checked config found at [Ruby on Rails Blog / What is Ruby on Rails for?](http://brainspl.at/nginx.conf.txt) and  
still it behaves the same.

Nginx details:  
nginx version: nginx/0.8.34  
built by gcc 4.1.2 20080704 (Red Hat 4.1.2-46)  
TLS SNI support disabled  
configure arguments: --with-http\_ssl\_module --prefix=/usr/nginx

Ideas?

* * *

worker\_processes 1;

error\_log /var/log/nginx/error.log;  
pid /var/run/nginx.pid;

events {  
worker\_connections 1024;  
}

http {  
include mime.types;  
default\_type application/octet-stream;  
access\_log /var/log/nginx/access.log;  
sendfile on;  
#tcp\_nopush on;

```
keepalive_timeout 65;
gzip on;

# mongrel servers
upstream mongrels {
    server 172.17.13.15:8000;
    server 172.17.13.15:8001;
    server 172.17.13.15:8002;
    server 172.17.13.15:8003;
    server 172.17.13.15:8004;
}

```

server {  
listen 443 default ssl;  
client\_max\_body\_size 50M;

```
ssl_certificate cert.pem;
ssl_certificate_key cert.key;
ssl_session_timeout 5m;
ssl_protocols SSLv2 SSLv3 TLSv1;

location / {
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X_FORWARDED_PROTO https;

  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header Host $http_host;
  proxy_redirect off;
  proxy_max_temp_file_size 0;

  proxy_pass http://mongrels;
}

error_page 500 502 503 504 /500.html;
location = /50x.html {
  root html;
}

```

}  
}