If your website is using varnish cache, then you might be interested to know how to fix error 503 backend fetch failed guru meditation. Well, we will happily assist you in resolving this issue at no cost. So, are you willing to learn? If yes, then keep reading and don’t skip anything!
We have already addressed the major causes of Error 503 backend Fetch Failed and provided 7 working simple quick solutions. If you haven’t already, I strongly advise that you visit that guide now. And to learn more about how to fix error 503 backend fetch failed guru meditation issue, please check out the below given details.
What is the error 503 backend fetch failed guru meditation
If you are visiting a website that caches its content using Varnish Cache or if you have Varnish Cache installed on your own website, you will likely see the following Varnish Cache server error at some point: XID number connected with a Service Unavailable Error 503 message.
The web server that was accessed gave the error 503 backend fetch failed varnish cache server, indicating that it is currently offline. This could be due to the server being overcrowded, undergoing maintenance, or not functioning properly for another reason.
Why Guru Meditation Error is Occurring on a Varnish Cache Server
This guru meditation error indicates that the website you are viewing is utilizing Varnish Cache to cache and serve content, but that Varnish Cache is unable to communicate with the back-end server.
This error can only occur if the website you are visiting caches and serves content using Varnish Cache. Varnish Cache generates the Guru Meditation error when a connection has been inactive for an extended length of time or when the Varnish Cache server has sent an excessive number of requests to a back-end server without obtaining a response.
Varnish Cache displays the 503 error rather than sending an unlimited number of requests to an unhealthy back end. This is done to alert the visitor (and website owner) that the website manager is likely already working on a remedy and that the best course of action is to try again later.
If you are the administrator or owner of this website and are confused why you are receiving this response, please continue reading as we have provided solutions regarding how to solve guru meditation error 503.
How to fix error 503 backend fetch failed guru meditation
So, how can you fix the issue if Varnish Cache is generating a Guru Meditation 503 error on your website? Using varnishlog, you must initially analyse the logs to identify any 503 errors that have occurred. Using the command supplied below from within Varnish Cache, it is possible to configure varnishlog to log 503 errors:
$ varnishlog -q ‘RespStatus == 503’ -g request
Because your back end is either down or ailing, 503 errors will appear consistently in your logs. In this instance, varnishlog may issue the error message “FetchError c: no backend connection.”
If the port that Varnish Cache is attempting to connect to, the origin server, and your HTTP service, such as Apache or Nginx, are all working properly, then you should determine if your back end requires debugging. If so, you can proceed to the next phase of this procedure.
If your back end appears to be working, but you continue to receive error number 503 from Varnish Cache, there is likely an issue with the connection that your web server has formed to Varnish Cache or with the Varnish Cache settings.
If your backend is responding but Varnish Cache is returning 503, timeouts on our end are commonly to blame. In the backend default VCL section, you can modify or add a.connect timeout = Xs and a.first byte timeout = Xs to a web server-appropriate timeout length.
The Varnish Cache Software has additional information about the various timeouts that may occur in Varnish Cache. Another useful piece of advice is to disable the KeepAlive feature, which terminates idle connections. The following is how this would appear:
Therefore, that concludes how to fix error 503 backend fetch failed guru meditation. If you would like to learn more about it, please let us know in the section provided below, and don’t forget to share this guide with your friends on social media sites such as Facebook and Twitter.