![]() ![]() We’ll go through these tips in the next section. In this case, there are some tips to solve this error from your end. For example when you’re trying to access a website from your computer and get a timeout error. This error can occur because of networking errors between servers.īut in very rare cases an error can be caused by client-side issues that are connected to your device or your networking device. In other words, the problem is on the server. So you can come across different timeout messages but they all have the same meaning.Ī 504 error is a server-side error. Here’s a Google example:ĭifferent platforms can change the timeout error message. Some websites can customize the template of a 504 Gateway Timeout error to make it look more original and less annoying. Depending on the operating system, web browser, and device it may have different looks. 504 Errors: AppearanceĪ 504 Gateway Timeout error can appear in different ways. The following codes are not specified by any standard. You can come across other 5xx unofficial codes, like 509, 526, 529, 530, 598, etc. This code indicates that the server is temporarily unable to process the client’s request because it is overloaded or down for maintenance. The server is acting as a gateway or a proxy and receives an invalid response from the upstream server. The server either doesn’t recognize the request method, or it lacks the ability to fulfill the request. If there’s an issue in the server besides a 504 Gateway Timeout error, it often returns one of these status codes:Ī generic error message for an unexpected condition that has no suitable specific message. This error happens when the server can’t receive a timely response from the upstream server. We have a 504 Gateway Timeout error when the server is running as a gateway or a proxy server. The 5xx status codes indicate that there are problems with the server. A 201 status code indicates that the request was successful and, as a result, the resource has been created. If the request is processed successfully by the server it’ll return status code 2xx.įor example, the 200 status code indicates that the server understood the request and successfully processed it. 5xx server error – the server failed to fulfill an apparently valid request.4xx client error – the request contains bad syntax or can’t be fulfilled.3xx redirection – further action needs to be taken in order to complete the request.2xx successful – the request was successfully received, understood, and accepted.1xx informational response – the request was received, and is being processed.Each status code is a 3-digit number where the first digit defines the class of response, while the last two digits don’t have any classifying or categorizing role. All HTTP response status codes are separated into five classes or categories. You can find the status code in each server response. HTTP status codes are a very important part of the conversation between web servers and clients. What happens when the client sends an HTTP request to the server? When the server receives the request, it processes it, and–depending on whether the result is successful or unsuccessful–returns a response with the corresponding HTTP status code in the HTTP response headers. I hope this solved the problem since it was intermittent.To deeply understand what a 504 Gateway Timeout error is let’s first have a look at server and client relationships. Lots of close_wait!!! that's abnormal.so I killed all the processes by typing Tcp 1137 0 localhost.localdom:9000 localhost.localdo:57960 CLOSE_WAIT Tcp 761 0 localhost.localdom:9000 localhost.localdo:58016 CLOSE_WAIT Tcp 953 0 localhost.localdom:9000 localhost.localdo:58005 CLOSE_WAIT Tcp 857 0 localhost.localdom:9000 localhost.localdo:58040 CLOSE_WAIT Tcp 961 0 localhost.localdom:9000 localhost.localdo:58025 CLOSE_WAIT Tcp 1633 0 localhost.localdom:9000 localhost.localdo:58395 CLOSE_WAIT Tcp 857 0 localhost.localdom:9000 localhost.localdo:58032 CLOSE_WAIT Tcp 913 0 localhost.localdom:9000 localhost.localdo:57917 CLOSE_WAIT Tcp 0 0 localhost.localdom:9000 localhost.localdo:58424 SYN_RECV So I figured out that I needed to check my php5-fpm process by typing netstat | grep 9000 Unable to bind listening socket for address '127.0.0.1:9000': Address already in use (98) In error.log: recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 76.66.174.147, server:, request: "GET /wp-admin/ HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "in php5-fpm.log: ![]() var/log/nginx/error.log and /var/log/php5-fpm.log So In my case I had Nginx and php-fpm that was managing the requests. a 504 Gateway problem means that my server is not communicating properly with the website. PLease check your log files! log files are your friends. After a few hours of Debugging here is how I did it: ![]()
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