Request_body is empty in Nginx log

Deploy Nginx, look at the Nginx log, found that the value of Request_body is not recorded

Nginx log:

192.168.1.1--2016-02-24t13:33:54+08:00post/rate_plan http/1.12002----0.0020.701
192.168.1.1--2016-02-24t13:33:54+08:00post /rate_plan http/1.12002----0.0010.617
192.168.1.1--2016-02-24t13:37:44+08:00post /rate_plan http/1.12002----0.0020.502

Possible causes of the problem:

When Nginx has not yet read the request body, or if the request body is partially or completely buffered to the temporary file, $request _body and $echo _request_body will be null values.
Nginx read request body is on-demand, if using the Ngx_proxy module, read occurs in the content request processing phase. So if you read the $request _body in a phase earlier than the content phase (such as the rewrite phase), it must be null

The workaround adds two configuration entries in the nginx.conf configuration file:

Fastcgi_buffers 8k;    # Specifies how many and how large buffers are needed locally to buffer the fastcgi response. Client_body_buffer_size 1024k; #缓冲区代理缓冲用户端请求的最大字节数

worker_processes  2;
daemon off;
#pid        logs/nginx.pid;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    log_format  main  ‘$remote_addr$remote_user$http_user_name$time_iso8601$request‘
                      ‘$status$body_bytes_sent$request_body$http_referer$http_user_agent‘
                      ‘$http_x_forwarded_for$upstream_response_time$request_time‘;
    sendfile        on;
    keepalive_timeout  65;
    client_max_body_size 100m;
    fastcgi_buffers 32 8k;
    client_body_buffer_size 1024k;
    server {
        listen       80;
        server_name  localhost;
        charset utf-8;
        location = / {
            root html;
            index  index.html index.htm;
            error_page 405 =200 $uri;
        }
        # redirect server error pages to the static page /50x.html
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
        error_page 405 =200 /index.html;
    }
    include conf.d/*.conf;
}

This article is from the "Chocolate Black" blog, be sure to keep this source http://10120275.blog.51cto.com/10110275/1744648

Request_body is empty in Nginx log