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     АРХИВ :: nginx-ru
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Ошибка 502 при обращении к некоторым страницам


  • To: nginx-ru@xxxxxxxxx
  • Subject: Ошибка 502 при обращении к некоторым страницам
  • From: Глушаков Михаил <glushakovma@xxxxxxxxx>
  • Date: Sun, 12 Jul 2009 16:41:12 +0400

Здравствуйте! При обращении к урл http://admins.biz.ua/test2/ или к некоторым 
поддоменам возникает ошибка 502. Апач стоит в бекенде а nginx слушает порт 81. 
Стыковал их при помощи iptables редиректом всех запросов на 81 порт. Вот конфиг 
енжинкса:

user  apache apache;
worker_processes  4;   # how many processors or how many hard disks you have

error_log  /var/log/nginx/error.log;

events {
    worker_connections 16384;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] $request '
                      '"$status" $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    tcp_nopush     on;
    keepalive_timeout  75 20;
    gzip  on;

    server_names_hash_bucket_size 64;
    reset_timedout_connection on;

     client_max_body_size 100m;

#------------------
#fullproxy for all
    server {
    listen       87.118.126.40:81 default rcvbuf=8192 sndbuf=16384 
backlog=32000                                             ;
        server_name  profhost.biz.ua ;     # "_" is for handle all hosts that 
ar                                             e not described by server_name
        charset off;

        access_log     on;
login as: root
root@xxxxxxxxxxxxx's password:
Last login: Sat Jul 11 12:26:02 2009 from 195.234.61.36
[root@profhost ~]# cat /usr/local/nginx/conf/nginx.conf
# /usr/local/nginx/conf/nginx.conf

user  apache apache;
worker_processes  4;   # how many processors or how many hard disks you have

error_log  /var/log/nginx/error.log;

events {
    worker_connections 16384;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] $request '
                      '"$status" $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    tcp_nopush     on;
    keepalive_timeout  75 20;
    gzip  on;

    server_names_hash_bucket_size 64;
    reset_timedout_connection on;

     client_max_body_size 100m;

#------------------
#fullproxy for all
    server {
    listen       87.118.126.40:81 default rcvbuf=8192 sndbuf=16384 
backlog=32000                                             ;
        server_name  profhost.biz.ua ;     # "_" is for handle all hosts that 
ar                                             e not described by server_name
        charset off;

        access_log     on;
        access_log /var/log/nginx/access.log  main;

        # redirect server error pages to the static page /50x.html
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /var/www/html/;
        }

        location / {
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

                proxy_pass              http://87.118.126.40;    # apache here

                client_max_body_size       16m;
                client_body_buffer_size    128k;

                proxy_buffering     off;
                #proxy_buffering     on;

                proxy_connect_timeout      90;
                proxy_send_timeout         90;
                proxy_read_timeout         120;
               proxy_buffer_size          8k;
               proxy_buffers              32 32k;
               proxy_busy_buffers_size    64k;
               proxy_temp_file_write_size 64k;

                error_page              502 503
/usr/local/www/nginx-dist/50x.html;
        }



        location /nginx_status {
            stub_status on;
            access_log   off;
            allow 87.118.126.40;
            allow 87.118.127.40;
            allow 127.0.0.1;
            deny all;
    }

}

В логах апача пусто, а вот в логах енжинкса такая строка:

2009/07/12 15:30:09 [error] 2441#0: *438485 upstream prematurely closed 
connection while reading response header from upstream, client: 66.249.71.240, 
server: profhost.biz.ua, request: "GET /test2/ HTTP/1.1", upstream: 
"http://87.118.126.40:80/test2/";, host: "admins.biz.ua"

Подскажите пожалуйста как решить проблему. Спасибо.



 




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