Потребление памяти nginx'ом

[Igor Sysoev]

On Fri, Oct 31, 2008 at 06:16:07PM +0200, Alex Vorona wrote:

> Наблюдаю интересную картину - после релоада nginx кушает в 2 раза больше 
> памяти, рестарт/обновление бинарника возвращают потребление в норму.
> 
> Судя по http://www.lexa.ru/nginx-ru/msg16264.html, двойное увеличение 
> потребления памяти должно быть только на время переконфигурации.
> 
> [root at host]# /usr/local/etc/rc.d/nginx start
> Performing sanity check on nginx configuration:
> 2008/10/31 11:50:55 [info] 53360#0: the configuration file 
> /usr/local/etc/nginx/nginx.conf syntax is ok
> 2008/10/31 11:50:55 [info] 53360#0: the configuration file 
> /usr/local/etc/nginx/nginx.conf was tested successfully
> Starting nginx.
> [root at host]# ps uax|grep nginx
> root     53381  0.0 15.3 158056 156376  ??  Ss   11:51AM   0:00.02 nginx: 
> master process /usr/local/sbin/nginx
> apache   53382  0.0 15.3 158056 156420  ??  S<   11:51AM   0:00.02 nginx: 
> worker process (nginx)
> root     53399  0.0  0.1  3308   920  p5  S+   11:51AM   0:00.00 grep nginx
> [root at host]# kill -1 53381
> [root at host]# ps uax|grep nginx
> root     53381 36.5 28.4 293224 291092  ??  Ss   11:51AM   0:04.73 nginx: 
> master process /usr/local/sbin/nginx
> apache   53433  0.0 28.4 293224 291100  ??  S<   11:51AM   0:00.01 nginx: 
> worker process (nginx)
> root     53435  0.0  0.1  3308   920  p5  S+   11:51AM   0:00.00 grep nginx
> [root at host]#
> [root at host]# /usr/local/etc/rc.d/nginx restart
> Performing sanity check on nginx configuration:
> 2008/10/31 12:00:08 [info] 54818#0: the configuration file 
> /usr/local/etc/nginx/nginx.conf syntax is ok
> 2008/10/31 12:00:08 [info] 54818#0: the configuration file 
> /usr/local/etc/nginx/nginx.conf was tested successfully
> Stopping nginx.
> Waiting for PIDS: 53381.
> Performing sanity check on nginx configuration:
> 2008/10/31 12:00:15 [info] 54831#0: the configuration file 
> /usr/local/etc/nginx/nginx.conf syntax is ok
> 2008/10/31 12:00:15 [info] 54831#0: the configuration file 
> /usr/local/etc/nginx/nginx.conf was tested successfully
> Starting nginx.
> [root at host]# ps uax|grep nginx
> root     54927  0.0 15.3 158056 156316  ??  Ss   12:00PM   0:00.02 nginx: 
> master process /usr/local/sbin/nginx
> apache   54928  0.0 15.3 158056 156336  ??  S<   12:00PM   0:00.02 nginx: 
> worker process (nginx)
> root     54949  0.0  0.1  3308   924  p5  S+   12:00PM   0:00.00 grep nginx
> [root at host]#
> Запросы к nginx - только от мониоринга раз в минуту
> [root at host]# curl http://127.0.0.1:8000
> Active connections: 1
> server accepts handled requests
>  15 15 15
> Reading: 0 Writing: 1 Waiting: 0
> 
> Около 8к доменов с конфигурацией
> 
>     server {
>         listen      1.2.3.4:80;
>         server_name www.domain.tld domain.tld;
>         root /home/user/domains/domain.tld/public_html;
>         access_log /var/log/httpd/domains/domain.tld.bytes bytes buffer=8k;
>         error_log  /var/log/nginx/www.domain.tld.error.log  warn;
>         location / {
>                 proxy_pass   http://1.2.3.4:81;
>                 proxy_redirect http://www.domain.tld:81 
>                 http://www.domain.tld;
>                 proxy_redirect http://domain.tld:81 http://domain.tld;
>         }
> 
>         include vhost_static.conf;
> 
>     }
> [root at host]# grep -v '#' vhost_static.conf
> 
>         location ~ 
> \.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js|wmv|wma|mp3|mpg|avi|mpeg|mp4|divx)$ 
> {
> 
>         }
>         location = /50x.html {
>             root   html;
>         }
>         location ~ /\.ht {
>             deny  all;
>         }
> [root at host]#
> 
> [root at host]# uname -rm
> 7.0-RELEASE i386

Возможно, дело в новом malloc()е. Можно попробовать запустить так:

MALLOC_OPTIONS=Dm /usr/local/nginx/nginx

И добавить в nginx.conf:

env   MALLOC_OPTIONS=Dm;

на случай апгрэйда.


-- 
Игорь Сысоев
http://sysoev.ru