Twitch, Amazon, Twitter and many online services suddenly stopped working. The problem was unknowingly triggered by a single user. The provider Fastly explained how the major internet outage occurred on Tuesday, June 8.
On June 8, millions of users had problems accessing Twitch, reddit, Twitter, and numerous other websites. Instead of watching sea otters in hot tubs, visitors to Twitch and other sites received an error message.
Now the service provider “Fastly” has responded. Fastly explains that the issues were triggered by a single user who did not even realize what they were doing.
Among the affected sites were:
- Twitch
- Amazon
- Paypal
- various large online magazines
Tom Warren from TheVerge pointed out the issue on Twitter. Although not all sites were completely affected, it proved to be a persistent disruption: Embedded media like images and videos did not work on TheVerge, and some services did not function on Amazon.
This is how it ended: The provider Fastly was able to quickly identify and resolve the issue. Nevertheless, millions of users were unable to use various systems.
A single user triggers a bug, millions cannot view Twitch and use Twitter
A single user, according to Fastly, had altered a setting and triggered an unknown software bug.
What exactly happened? The technical director of Fastly, Nick Rockwell, explained in a statement how it occurred (via Fastly.com):
- On May 12, new software was installed on the servers. This contained the unknown bug.
- On June 8, a user changed their configuration, “which caused 85% of our network to return errors”.
- Fastly stated that they found the error within a minute. And “within 49 minutes, 95% of our network was functioning normally again.”
What exactly was the problem? Fastly did not specify in its official statement what exactly the problem was or which setting caused the error. They only mentioned that there were issues with a “specific customer configuration under specific circumstances.” What exactly happened was not explained by Fastly, and we cannot tell you either.
Why did the problem have such a large impact? Fastly serves major customers like Amazon, Twitter, Twitch, and reddit, which are supported by Fastly. Therefore, many services suddenly became unavailable or only partially usable.
Providers like Fastly have a significant impact on “the” internet
What is Fastly, anyway? Providers like Fastly offer what are called “Content Delivery Networks” (CDN). Simply put, these providers deliver cached internet content from a network location closest to the user.
This reduces latency, as otherwise, for example, German users would always have to communicate with a server in the USA when they want to shop on Amazon. Instead, we see cached content from a server in Germany. We don’t notice a difference since to us, all the pages look the same. Everything just happens a bit faster.
Content Delivery Networks also relieve the original server since we only see a snapshot of the server. This way, content remains available even during high network load, short-term visitor peaks, or potential server outages.
However, one disadvantage of this system has now been observed: If an important CDN fails, it leads to problems and errors with numerous websites.
That’s why Twitch is so important: Twitch now plays a significant role in the gaming sector. How important Twitch is for the gaming industry can be heard in our MeinMMO podcast, where we explain important background information about the major online service.
