If an error, such as 404 Not Found, 502 Bad Gateway, or 504 Gateway Timeout, occurs after a website is connected to WAF, use the following methods to locate the cause and
当前服务器中的PHP请求总数已经达到了PHP-FPM中max_children设置的上限,如果后续有新的PHP请求到达服务器,通常负载均衡SLB会随机返回502或504状态码。 如果已有的PHP请求被处理完成,新请求被继续处理,则一切正常。 如果已有的PHP请求处理较慢,新的PHP请求处于等待状态,直至超过Nginx的fastcgi_read_timeout值,则会出现...
If the execution time of PHP scripts exceeds the upper limit, or the time that is used by PHP-FPM to process PHP scripts exceeds the value of request_terminate_timeout on NGINX, a 502 error occurs and the following error entry is shown in NGINX logs: ...
For example: site bindings in IIS, server block in NGINX and virtual host in Apache. d. Check your OS firewall settings to make sure that incoming traffic to the port is allowed. HTTP status code mismatch Message: Status code of the backend's HTTP response did not match the probe ...
502 Bad Gateway The 502 status code, orBad Gatewayerror, means that the server is a gateway or proxy server, and it is not receiving a valid response from the backend servers that should actually fulfill the request. If the server in question is a reverse proxy server, such as a load ba...
Cause: Nginx Is Running But Can’t Connect to Kibana If Kibana is not accessible, and you receive a502 Bad Gatewayerror, Nginx is running but it’s unable to connect to Kibana. The first step to resolving this issue is to check if Kibana is running with this command: ...
Nginx Config If your website uses Nginx, the thenginx.conffile contains any redirects and the directives that define how the site runs. The general syntax for redirectinghttptohttpsin thenginx.conffile is: server { listen 80; server_name mydomain.com www.mydomain.com; return 301 https://...
If an error, such as 404 Not Found, 502 Bad Gateway, or 504 Gateway Timeout, occurs after a website is connected to WAF, use the following methods to locate the cause and
For example: site bindings in IIS, server block in NGINX and virtual host in Apache. d. Check your OS firewall settings to make sure that incoming traffic to the port is allowed. HTTP status code mismatch Message: Status code of the backend's HTTP response did not match the probe ...
配置负载均衡SLB之后,访问网站出现“500 Internal Server Error”、“502 Bad Gateway”和“504 Gateway Timeout”等错误时,可能由多种原因导致,例如运营商拦截、客户端异常行为导致云盾封堵、负载均衡配置错误、健康检查失败或者后端ECS实例Web应用访问问题。本文列举了此类问题的对应问题原因的解决方法,若没有解决问题,...