Amazon.com Inc.’s cloud unit posted the strongest growth rate in almost three years, reassuring investors who were concerned that the largest seller of rented computing power was losing ground to rivals.

Amazon.com Inc. posted robust cloud growth that reassured investors that the tens of billions of dollars the company and its peers are pouring into artificial intelligence will pay off.

A problem at Amazon’s cloud computing service disrupted internet use around the world. The outage on Monday took down a broad range of online services, including social media, gaming, food delivery, streaming and financial platforms.

Amazon said its cloud computing service was recovering from a major outage that disrupted online activity around the world.

Experts say the incident revealed what can happen when a such a broad spectrum of companies rely on singular cloud provider.

A massive internet outage stemming from errors in Amazon cloud services on Monday morning demonstrated just how many people rely on the corporate behemoth's computational infrastructure everyday — and laid bare the vulnerabilities of an increasingly concentrated system.

CEO Andy Jassy had signaled that Amazon’s workforce would likely get smaller as the company increases its use of artificial intelligence to complete tasks normally handled by people.

An outage at Amazon and Microsoft’s cloud computing platforms affected Epic’s MyChart patient portal, the Independent reported. DownDetector, a crowdsourced interruption-reporting site, showed big increases in errors Oct.