Nginx：上游发送了重复的标题行：“Transfer-Encoding：chunked”，先前的值：“Transfer-Encoding：chunked”

Question

将 Nginx 从 1.18 升级到 1.24 后，我们收到以下错误：

upstream sent duplicate header line: "Transfer-Encoding: chunked", previous value: "Transfer-Encoding: chunked" while reading response header from upstream, client: 54.xx.xx.xx, server: backend.example.com, request: "POST /test/file HTTP/1.1", upstream: "http://10.0.xx.xx:6067/test/file", host: "backend.example.com", referrer: "https://app.example.com/

Nginx 版本： nginx/1.24.0

操作系统版本：Ubuntu 22.04.3 LTS

配置：

后端.conf

server {
  access_log /var/log/nginx/access.log;
  index index.html index.htm index.nginx-debian.html;
  server_name backend.example.com;
  include /etc/nginx/http_proxy.conf;
  location /test/file {
    proxy_pass http://10.0.xx.xx:6067/test/file;
    proxy_set_header  X-Real-IP       $remote_addr;
    proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header  Host $host;
    proxy_set_header  X-Forwarded-Port 443;
    proxy_set_header  X-Forwarded-Proto https;
    proxy_set_header  X-Forwarded-Host $host:443;
  }
  listen 443 ssl; 
  ssl_certificate /etc/backend.example.com/fullchain.pem; 
  ssl_certificate_key /etc/backend.example.com/privkey.pem; 
  include /etc/options-ssl-nginx.conf; 
  ssl_dhparam /etc/ssl-dhparams.pem;
}

http_proxy.conf

proxy_buffers           32 4k;
proxy_http_version      1.1;
proxy_send_timeout      60;
proxy_read_timeout      60;
proxy_connect_timeout   60;
proxy_set_header    Connection    '';

请求已在后端（spring-boot）成功处理，但我们在后端 Nginx 的 error.log 中收到上述错误，这使得前端失败并显示 502

如果我们从服务器块中删除 include /etc/nginx/http_proxy.conf; 我们收到以下错误：

upstream sent invalid chunked response while reading upstream, client: 54.xx.xx.xx,server: backend.example.com, request: "POST /test/file HTTP/1.1”, upstream: "http://10.0.xx.xx:6067/test/file", host: "backend.example.com”, referrer: "https://app.example.com/

如果需要其他详细信息，请告诉我。

感谢任何解决此问题的帮助或指导。 预先感谢。

Answer 1

几天前，我将 Nginx 从 1.18.0 升级到 1.24.0 后遇到了同样的错误。我尝试了太多参数。

您应该尝试在 nginx.conf 中添加此“chunked_transfer_encoding off”参数。这解决了我的问题。

sendfile        on;
server_tokens off;
keepalive_timeout  65;
chunked_transfer_encoding off;
include /etc/nginx/conf.d/*.conf;

Answer 2

要解决很多人升级Nginx后遇到的错误，可以直接在Nginx目录（/etc/nginx/nginx.conf）下的配置文件（nginx.conf）中添加“chunked_transfer_encoding off;”参数。