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  • 日志解析



    1)基本配置

    # cat /etc/nginx/nginx.conf -n
        40        access_log /var/log/nginx/access.log;
        41        error_log /var/log/nginx/error.log;
    注意:
         nginx日志属性设置的完整格式是:
             属性名称 access_log
             存储位置 /var/log/nginx/access.log
          日志格式 位置为空表示使用默认的combined 日志格式。它是通过log_format设置的
    

    2)默认日志格式

    log_format combined '$remote_addr - $remote_user [$time_local] '
                        '"$request" $status $body_bytes_sent '
                        '"$http_referer" "$http_user_agent"';
    

    案例

    1)设置日志格式

    # vim /etc/nginx/nginx.conf
    
    # Logging Settings
    ##  设定日志格式的方法: log_format 格式名称 "日志表现样式"
       log_format proxy_format '$remote_addr - $remote_user [$time_local] '
                      '"$request" $status $body_bytes_sent "$http_referer"'
                      '"$http_user_agent" "$http_x_real_ip" "$http_x_forwarded_for"';
    

    2)使用日志格式

    access_log 日志路径 格式名称;
    

    3)负载均衡配置文件

    # vim /etc/nginx/conf.d/upstream.conf
    upstream backends {
      server 172.16.179.131:10086;
    }
    server {
      listen 8080;
      server_name localhost;
      location / {
        proxy_pass http://backends;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      }
    }
    
    

    4)后端代理配置文件

    # vim /etc/nginx/conf.d/backend.conf
    server {
      listen 172.16.179.131:10086;
      location / {
        proxy_pass http://172.16.179.130:10087/;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      }
    }
    
    server {
      listen 172.16.179.131:10087;
      root /var/www/html/app1/;
      access_log /var/log/nginx/app1/access.log proxy_format;
      real_ip_header X-Forwarded-For;
      set_real_ip_from 172.16.0.0/16;
      real_ip_recursive on;
    
      location / {
        root /var/www/html/nihao/;
        try_files $uri $uri/ =404;
      }
    }
    

    5)准备后端服务文件

    
    mkdir -p /var/www/html/app1/
    echo '<h1>backend_app1</h1>' > /var/www/html/app1/index.html
    mkdir /var/log/nginx/app1 -p
    

    6)检查nginx配置后重载服务

    /usr/sbin/nginx -t
    systemctl reload nginx
    netstat -tnulp | grep nginx
    

    7)查看效果

    在多台主机上执行如下命令
    curl http://172.16.179.131
    

    8)查看app1日志

    172.16.179.1 - - [04/Jun/2019:20:24:32 +0800] "GET / HTTP/1.0" 304 0 "-""curl/7.47.0" "172.16.179.1" "172.16.179.1, 172.16.179.131"
    172.16.179.130 - - [04/Jun/2019:20:26:13 +0800] "GET / HTTP/1.0" 200 23 "-""curl/7.47.0" "172.16.179.130" "172.16.179.130, 172.16.179.131"
    
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  • 原文地址:https://www.cnblogs.com/oklizz/p/11336679.html
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