ngin goes down under high traffic

[Sasa Ugrenovic]

You sure its nginx, maybe php ?
Anything in logs ? Tryed strace on working nginx processes (when it starts reading off the disc) to see what's happening ?

I think more info is needed. What type of content your delivering, disc configuration, etc.

--

On Sun, 16 Nov 2008 18:19:17 +0000 (UTC)
David Pospisil <foton2 at post.cz> wrote:

> Please look at http://pub.horror.superhosting.cz/data/eth0-6h.png.
> Everytime nginx goes under high traffic, it stops offering files and instead of
> this, it starts reading of discs (it reads about 400Mb/s but send nothing). I
> have to restart nginx then. 
> Linux Debian etch 2.6.24, nginx 0.6.32,
> nginx.conf:
> user www-data;
> worker_processes  64;
> 
> error_log  /var/log/nginx/error.log debug;
> pid        /var/run/nginx.pid;
> 
> events {
>     worker_connections  2048;
> }
> 
> http {
>     include       /etc/nginx/mime.types;
>     default_type  application/octet-stream;
> 
>     access_log	/var/log/nginx/access.log;
> 
>     sendfile        on;
>     #tcp_nopush     on;
> 
>     #keepalive_timeout  0;
>     keepalive_timeout  65;
>     tcp_nodelay        on;
> 
>     gzip  on;
> 
>     include /etc/nginx/sites-enabled/*;
> 
> }
> 
> # You may add here your
> # server {
> #       ...
> # }
> # statements for each of your virtual hosts
> 
> server {
>         listen   xx.89.xx.xx:80;
>         server_name  free.xx.com;
> 
>         access_log  "/home/logs/free/nginx_access.log";
> 	error_log   "/home/logs/free/nginx_error.log" info;
> 
>         location / {
>                 root   "/home/www/xx.com/free";
>                 index  index.html index.htm;
> 		rewrite "^/(.*)" "/index.php?cgi_download_uri=$1" last;
> 	}
> 
> 	location /storage/ {
>  		  internal;
> 		  alias /storage/;
> 	}
> 
>         #error_page  404  /404.html;
> 
>         # redirect server error pages to the static page /50x.html
>         #
>         error_page   500 502 503 504  /50x.html;
>         location = /50x.html {
>                 root   /var/www/nginx-default;
>         }
> 
>         # proxy the PHP scripts to Apache listening on 127.0.0.1:80
>         #
>         location ~ \.php$ {
> 	         proxy_pass   http://127.0.0.1;
> 		 proxy_set_header  X-Real-IP  $remote_addr;
> 	         proxy_set_header  Host  $host;
>                  proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for; 
> 		 proxy_buffering off;
>         }
> 
>         # deny access to .htaccess files, if Apache's document root
>         # concurs with nginx's one
>         #
>         #location ~ /\.ht {
>                 #deny  all;
>         #}
> }
> 
> Thank you for any suggestion.