我最近将我的 magento 从 1.5 升级到 1.9,当我将某个产品添加到购物篮时,我开始收到此错误:502 Bad Gateway
var/log/文件夹中没有日志条目:

因此,我查看了我的 nginx 错误,并在nginx-errors.log 中发现了以下条目:
2015/04/09 10:58:03 [error] 15208#0: *3 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 46.xxx.xxx.xxx, server: dev.my-domain.co.uk, request: "POST /checkout/cart/add/uenc/aHR0cDovL2Rldi5zYWx2ZW8uY28udWsvdGludGktYmF0aC1wYWludGluZy1zb2FwLTcwbWwuaHRtbD9fX19TSUQ9VQ,,/product/15066/form_key/eYLc3lQ35BSrk6Pa/ HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fcgi-www-data.sock:", host: "dev.my-domain.co.uk", referrer: "http://dev.my-domain.co.uk/tinti-bath-painting-soap-70ml.html"
2015/04/09 11:04:42 [error] 15208#0: *13 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 46.xxx.xxx.xxx, server: dev.my-domain.co.uk, request: "POST /checkout/cart/add/uenc/aHR0cDovL2Rldi5zYWx2ZW8uY28udWsvdGludGktYmF0aC1wYWludGluZy1zb2FwLTcwbWwuaHRtbD9fX19TSUQ9VQ,,/product/15066/form_key/eYLc3lQ35BSrk6Pa/ HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fcgi-www-data.sock:", host: "dev.my-domain.co.uk", referrer: …Run Code Online (Sandbox Code Playgroud)