Nginx record request distribution log settings

<pre name="code" class="python">http {
log_format  main  
  ' $remote_user [$time_local]  $http_x_Forwarded_for $remote_addr  $request '
 '$http_x_forwarded_for '                     
 '$upstream_addr '                      
 'ups_resp_time: $upstream_response_time '                      
 'request_time: $request_time';

access_log  logs/access.log  main;

server{}
...
}

 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.15:8188 ups_resp_time: 0.010 request_time: 0.011
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.16:8188 ups_resp_time: 0.006 request_time: 0.006
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.15:8188 ups_resp_time: 0.013 request_time: 0.013
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.17:8188 ups_resp_time: 0.003 request_time: 0.003
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.18:8188 ups_resp_time: 0.004 request_time: 0.004
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.15:8188 ups_resp_time: 0.012 request_time: 0.013
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.18:8188 ups_resp_time: 0.005 request_time: 0.005
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.16:8188 ups_resp_time: 0.011 request_time: 0.011
 - [31/May/2013:00:01:03 -0700]  - xxx.ip.addr.xxx  GET /portal/index.html HTTP/1.1 - 192.168.100.15:8188 ups_resp_time: 0.447 request_time: 0.759

# greatwqs@163.com Install on 2012-08-11 linux
# user  devwqs;

# 2 intel(R) xeon(R) CPU
worker_processes  4;

worker_cpu_affinity 00000001 00000010 00000100 00001000;

# error_log  logs/error.log;
# error_log  logs/error.log  notice;
error_log   logs/error.log  error;

pid        logs/nginx.pid;

# allow openning file nums
worker_rlimit_nofile 25600;

events {
    # linux 2.6 upper version.
    use epoll;
    worker_connections  51200;
}

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"'
    #                   '"$upstream_addr"' '"$upstream_response_time"';
    log_format  main  ' $remote_user [$time_local]  $http_x_Forwarded_for $remote_addr  $request '
                      '$http_x_forwarded_for '
                      '$upstream_addr '
                      'ups_resp_time: $upstream_response_time '
                      'request_time: $request_time';

    access_log  logs/access.log  main;

    sendfile                     on;
    # tcp_nopush                 on;
                                 
    keepalive_requests           200;
    keepalive_timeout            20;
    gzip  on;                    
    client_body_buffer_size      128k;
    client_body_timeout          60s;
    client_max_body_size         10m;
    # proxy_buffer_size          8k;
    # proxy_busy_buffers_size    64k;
    proxy_temp_file_write_size   64k;

    # portal-cluster
    upstream portal-cluster {
        # http://192.168.100.15:8188/portal/
        server 192.168.100.15:8188 weight=5 max_fails=5 fail_timeout=30s;

        # http://192.168.100.16:8188/portal/
        server 192.168.100.16:8188 weight=5 max_fails=5 fail_timeout=30s;
        
        # http://192.168.100.17:8188/portal/
        server 192.168.100.17:8188 weight=5 max_fails=5 fail_timeout=30s;
        
        # http://192.168.100.18:8188/portal/
        server 192.168.100.18:8188 weight=5 max_fails=5 fail_timeout=30s;
    }

    # manage-cluster
    upstream manage-cluster {
        # http://192.168.100.25:8189/manage/
        server 192.168.100.25:8189 weight=4 max_fails=5 fail_timeout=30s;

        # http://192.168.100.26:8189/manage/
        server 192.168.100.26:8189 weight=6 max_fails=5 fail_timeout=30s;
    }

    # External Internet.
    server {
        listen       80;
        server_name  www.huaxixiang.com;
        access_log   logs/host.access.log  main;

        location /portal/ {
            # root   html;
            # index  index.html index.htm;
            # nginx http header send to tomcat app.
            # proxy_set_header Host  $host;
            # proxy_set_header X-Forwarded-For  $remote_addr;
            proxy_set_header Host $host;
            proxy_set_header X-Real-Ip $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;

            proxy_pass http://portal-cluster;
        }

        # nginx status
        location /nginx_status {
            # copied from http://blog.kovyrin.net/2006/04/29/monitoring-nginx-with-rrdtool/
            stub_status  on;
            access_log   off;
            allow        192.168.100.100;
            #deny all;
        }

        location / {
            root   html;
            index  index.html index.htm;
        }
        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   html;
        }
    }

    # External Internet.
    server {
        listen       80;
        server_name  manage.huaxixiang.com;

        access_log  logs/host.access.log  main;

        location /manage/ {
            proxy_pass http://manage-cluster;
        }

        location / {
            root   html;
            index  index.html index.htm;
        }

        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   html;
        }
    }
}