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Wednesday, 21 November 2018 08:08

Microsoft resorts to age-old remedy to fix cloud: rebooting Featured

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Microsoft resorts to age-old remedy to fix cloud: rebooting Pixabay

After nearly 18 hours of an outage, Microsoft finally fixed the problem with its Azure cloud service by using an act familiar to Windows users: rebooting.

Cloud customers using multi-factor authentication were locked out of their accounts from 04.39 UTC on Monday US time (3.39pm Monday AEDT).

But issues around Office 365 appear to be still unresolved. On Tuesday, Microsoft was unsure of when things would be resolved to the extent that it posted a note saying the next update would only be at Tuesday midnight US time (11am AEDT Wednesday). That notice is still there.

As far as the cloud service itself goes, things appear to have been resolved late on Monday night, thanks to one of the ancient arts with which Windows are familiar. Reboot, reformat and reinstall were a standard remedy for borked Windows systems and used to be known as the triple-R salute.

As to the cause of the outage, Microsoft said: "Requests from MFA servers to Redis Cache in Europe reached operational threshold causing latency and timeouts.

"After attempting to fail over traffic to North America, this caused a secondary issue where servers became unhealthy and traffic was throttled to handle increased demand."

And regarding the mitigation, Microsoft said: "Engineers deployed a hotfix which eliminated the connection between Azure Identity Multi-Factor Authentication Service and a backend service. Secondly, engineers cycled impacted servers which allowed authentication requests to succeed."

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Sam Varghese

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Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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