In this article, we will discuss What is Error 503 Service Unavailable & Guru Mediation & all about the Varnish cache server.
Internet is down today, yes you heard it right. Most of you may have experienced it. Several websites were down today with an “Error 503 Service Unavailable”.
It’s affecting thousands of websites including many big news websites and social media platforms.
Here is the list of websites that were down due to an outage & known to us:
- Financial Times
- The New York Times
- Bloomberg News
- Vox media
Nearly 21,000 Reddit users reported issues with the social media platform, while more than 2,000 users reported problems with Amazon, according to outage monitoring website Downdetector.com.
As that said Downdetector’s website is also down. it was funny though 😂
New Update by Fastly
Fastly is an American cloud computing services provider. Fastly describes their network as an edge cloud platform, which is designed to help developers extend their core cloud infrastructure to the edge of the network, closer to users.
We identified a service configuration that triggered disruptions across our POPs globally and have disabled that configuration. Our global network is coming back online. Continued status is available at https://t.co/RIQWX0LWwl
— Fastly (@fastly) June 8, 2021
So let’s see What are Error 503 Service Unavailable, Guru Mediation & what varnish cache server.
You will also get to know what causes this global outage. & can you fix this? So let’s get started.
What is Error 503 Service Unavailable
The HyperText Transfer Protocol (HTTP)
503 Service Unavailable server error response code indicates that the server is not ready to handle the request.
A 503 error means something is preventing the browser from accessing the target website’s server. Typically, this means the server has been unable to handle the information request, but the cause of this won’t necessarily be obvious.
The most common cause of the 503 error is a breakdown in communication between the server and the website it is supporting, resulting in that website being unable to handle any information requests from a user’s browser. This could have been due to scheduled server maintenance or some unforeseen technical issue.
What is Guru Mediation
The Guru Mediation error occurs when the varnish cache made too many requests and not getting any response from the server.
The alert occurred when there was a fatal problem with the system. If the system had no means of recovery, it could display the alert, even in systems with numerous critical flaws. In extreme cases, the alert could even be displayed if the system’s memory was completely exhausted.
What is a varnish cache server
Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configures it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 – 1000x, depending on your architecture.
How to fix Error 503 Service Unavailable in Varnish Cache Server?
As I said above this is an error from the server-side, so there’s not much you can do to fix it. The best you can do is, Refresh the Page So that if the error gets solved on the server side then the issue will also get solved on your device in this way.
Also Read:- 5 Best free Android apps of June 2021
wrap up: Global internet outage with Error 503 Service Unavailable
The problem got solved but the issue affecting the sites was not immediately clear. We will let you know as soon as we got some information. For that make sure you join our Telegram Channel –NixLoop to get Notify of our future updates. Thanks for Reading.