01_Error-Nginx 反代後端接口報錯

一。前言#

NGINX 反向代理後端介面時報錯：[error] ...: *1918 readv() failed (104: Connection reset by peer) while reading upstream ...

控制台報錯訊息

NGINX 錯誤日誌

二。解決辦法#

參考文章 http://blog.51yip.com/apachenginx/2203.html

查看 nginx error 錯誤，發現上傳介面報以下錯：

2019/10/10 19:58:25 [error] 299784#0: \*5967188 readv() failed (104: Connection reset by peer) while reading upstream, client: 59.34.155.7, server: xxxxxxxx, request: "POST /stream/tracking/file HTTP/1.1", upstream: "http://xxxxxxxx/stream/tracking/file", host: "xxxxxxxx"

這種錯誤日誌不多，第一感覺就是上傳檔案過大，傳輸時間過長，然後連接被中斷。

當使用nginx作為反向代理時，為了支援長連線，需要做到兩點：

從client到nginx的連接是長連線，對於客戶端來說，nginx長連線是預設開啟的。從nginx到server的連接是長連線，需要自己開啟
upstream bigdata {  
    server 10.0.20.xx:18018;  
    server 10.0.20.xx:18018;  
    server 10.0.20.xx:18018;  
    server 10.0.20.xx:18018;  
    keepalive 100;   //根據qps來調整  
}    
  
location ~ / {  
。。。。。。。。。省略。。。。。。。。。。。。。  
    proxy_connect_timeout      120;   //加大120  
    proxy_send_timeout         120;   //加大120  
    proxy_read_timeout         120;   //加大120  
    proxy_http_version 1.1;    //開啟後端，長連線  
    proxy_set_header Connection "";  //開啟後端，長連線  
}  
注意：keepalive指定的數值是Nginx每個worker連接後端的最大長連線數，而不是整個Nginx的.

作者：海底蒼鷹

地址:http://blog.51yip.com/apachenginx/2203.html

三。個人配置記錄#

$ cat cpen.top.conf
server {
    listen xxx ssl;

    server_name xxx.xxx;

    location / {
        proxy_pass http://127.0.0.1:xxx;
        proxy_connect_timeout      120;   # 加大120
        proxy_send_timeout         120;   # 加大120
        proxy_read_timeout         120;   # 加大120
        proxy_http_version 1.1;           # 開啟後端，長連線
        proxy_set_header Connection "";   # 開啟後端，長連線
        proxy_set_header    Host            $host;
        proxy_set_header    X-Real-IP       $remote_addr;
        proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header    Upgrade         $http_upgrade;
    }

    ssl_certificate     /usr/local/nginx/ssl/xxx.pem;
    ssl_certificate_key /usr/local/nginx/ssl/xxx.key;

    access_log /data/service_logs/nginx/xxx.log misc;
    error_log  /data/service_logs/nginx/xxx.log;
}