99.9999999% up time!

Just finished watching a good video by Bryan Hunter titled Erlang for C# Developers where he told a great story about the first project Erlang was used in inside Ericson and how they managed a Nine Nines uptime with that project.

For anyone who’s wondering what ‘Nine Nines’ means, it means the service is available 99.9999999% of the time or, a total of 32 milliseconds of downtime a year! Unbelievable!

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Yan Cui

I’m an AWS Serverless Hero and the author of Production-Ready Serverless. I have run production workload at scale in AWS for nearly 10 years and I have been an architect or principal engineer with a variety of industries ranging from banking, e-commerce, sports streaming to mobile gaming. I currently work as an independent consultant focused on AWS and serverless.

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