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A comment on Summary of the AWS Service Event in the Northern Virginia (US-East-1) Region. Parent comment
Also, experiments at this size and speed have never been carried out before.
And statistical behaviours are very difficult to understand. First thing: 99.9999% uptime for ALL users is HUGELY different from 99.999%.
As a matter of fact, this was just one of amazon’s zones, rememeber.
Edit: finally, the right model for these systems might well have no mean (fat tails…) and then where do the statistics go from there?
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Also, experiments at this size and speed have never been carried out before.
And statistical behaviours are very difficult to understand. First thing: 99.9999% uptime for ALL users is HUGELY different from 99.999%.
As a matter of fact, this was just one of amazon’s zones, rememeber.
Edit: finally, the right model for these systems might well have no mean (fat tails…) and then where do the statistics go from there?