AWS Wide Spread Outage

Introduction

Several Amazon and other services that depend on AWS were disrupted by an outage incident that spanned more than 8 hours on Tuesday, December 7, 2021, at approximately 15:35 UTC (7:35 am PST). The incident impacted everything from home consumer products to numerous commercial services.

This hours-long outage made headings in the popular media: “From angry Adele fans to broken robot vacuums: AWS outage ripples through the US”. The outage affected millions of users worldwide including individuals using the AWS online stores and other businesses that relied heavily on AWS for providing their services.

The disruption caused by AWS emphasized the need for a decentralized Internet where services don’t rely on a small number of giant companies. According to Gartner, 80 percent of the cloud market is handled by just five companies. Amazon, with a 41 percent share of the cloud computing market, is the largest.

Outages like the ones above remind us of famous Lamport’s quip:

“A distributed system is one in which the failure of a computer you didn’t even know existed can render your own computer unusable”