From theregister.com
Google has posted more details about its 50 minute outage yesterday, though promising a “full incident report” to follow. It was authentication that broke, reminiscent of Microsoft’s September cloud outage caused by an Azure Active Directory failure.
In an update to its Cloud Status dashboard, Google said that: “The root cause was an issue in our automated quota management system which reduced capacity for Google’s central identity management system, causing it to return errors globally. As a result, we couldn’t verify that user requests were authenticated and served errors to our users.”