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A comment on Introducing Cloud Spanner, a Global Database Service. Parent comment

Re:Introducing Cloud Spanner, a Global Database Service by jpmattia on Tuesday February 14, 2017 @02:51PM (#13646543)
> with the Availability being five 9s or better (less than one failure in 10^6)

Anyone know how exactly this is defined for them? (Time? Queries? Results?)

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Re:Introducing Cloud Spanner, a Global Database Service by btian on Tuesday February 14, 2017 @04:59PM (#13647606)
In general availability is defined in terms of time.

https://en.wikipedia.org/wiki/High_availability

Five-9s means 5 minutes of downtime per year.

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Re:Introducing Cloud Spanner, a Global Database Service by bpicolo on Tuesday February 14, 2017 @03:29PM (#13646837)
Looks like they define it as "downtime where downtime instance > 30s"?
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Re:Introducing Cloud Spanner, a Global Database Service by the_cap_theorem on Wednesday February 15, 2017 @07:27AM (#13651509)
Well, this is what the spanner website says if you read the fine print:

>> This feature is not covered by any SLA

So I would guess that you don't get _any_ guarantess. Not five nines and not even one nine.

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Re:Introducing Cloud Spanner, a Global Database Service by ecnahc515 on Wednesday February 15, 2017 @11:05AM (#13652954)
Currently yes, but that's because it's in Beta.
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