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‘unchecked’ std::errors are treated as ‘something which should never ever happen, but in practice MAY occur as a result of potentially-recoverable bug'

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Failing-Fast does NOT mean we should necessarily Fail-Hard(!). In certain (production!) cases, Failing-Fast-AND-Soft IS a substantially better alternative.

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trying to optimize out a 3e-7 performance hit is very rarely worth the trouble.

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With 4S/4U boxes having typical MTBFs of 3–5 years, the next question we should ask ourselves, is “Hey, will we really be able to write software which crashes much more rarely than that?”

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to make an efficient representation usable for OLAP – we need to modify our data on its way to OLAP replicas

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Each of the DB Server Apps is a replica master, but all replica targets are within the same Replica DB

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while duplication MAY indeed improve performance – undue duplication also MAY hit performance pretty badly

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NoSQL will usually call for another denormalisation on top of what we’ve described above for SQL-with-XML.