Nginx record request distribution log settings

After nginx receives the request, it needs to distribute the request to the backend WEB service cluster.

You need to record the distribution log here to analyze the number of requests processed by each backend WEB server.

<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{}
...
}

The information displayed in the log is:

 - [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

All configuration files nginx.conf.

# 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;
        }
    }
}

nginx status view:

The above introduces the Nginx record request distribution log settings, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.