参考:http://www.lc365.net/blog/b/23997/

http://yucanghai.blog.51cto.com/5260262/1713803

错误日志:

10.0.0.21 - - [16/Nov/2017:16:57:53 +0800] "POST /insight/plan/query HTTP/1.1" 499 0 "https://newtest.dmp.mcdonalds.com.cn/insight/plan/plan" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36" "116.236.168.138"


499错误是什么?让我们看看NGINX的源码中的定义:

ngx_null_string,                    /* 499, client has closed connection */这很有可能是因为服务器端处理的时间过长,客户端“不耐烦”了。



根据网上提供的各种timeout设置,解决不了问题,最终在代理nginx的nginx.conf中添加如下两行配置:

    proxy_read_timeout 300;        #默认60s,这里修改为300s

    proxy_ignore_client_abort on;   #表示代理服务端不要主要主动关闭客户端连接。


web再次执行查询:

10.0.0.21 - - [16/Nov/2017:17:11:50 +0800] "GET /insight/plan/plan HTTP/1.1" 200 23597 "https://newtest.dmp.mcdonalds.com.cn/insight/plan/index" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36" "116.236.168.138"


10.0.0.21 - - [16/Nov/2017:17:16:53 +0800] "POST /insight/plan/query HTTP/1.1" 499 0 "https://newtest.dmp.mcdonalds.com.cn/insight/plan/plan" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36" "116.236.168.138"


2017:17:11:50开始,2017:17:16:53结束,时间持续了5分钟=300s


解决问题。