nginx upstream prematurely closed connection while reading upstream

 

nginx报错：

 

2019/09/04 08:52:20 [error] 17537#0: *10 upstream prematurely closed connection while reading upstream, server: localhost, request: "GET /test/a.js HTTP/1.1", upstream: "http://127.0.0.1:8091/test/a.js", 

 

问题描述：

   a.js 比较大  4M左右。 通过 upstream 读取，在全部数据读取完成前，连接关闭，导至前端报错

net::ERR_INCOMPLETE_CHUNKED_ENCODING 200

解决办法：

   配置代理服务器的 header  Connection: keep-alive

  nginx配置： 

 

                proxy_http_version 1.1;

proxy_set_header Connection "";