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We need to monitor EVERYTHING we can afford to monitor.

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Monitoring data doesn’t really require ACID transactions.

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it is DB which is usually The Bottleneck™ – it means that we’re saving this enormous amount of load, exactly where it really matters.

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as discussed above, the real-world task is always about scaling the whole system, including database; and in this regard Stateless-App-based systems exhibit significant problems.

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Whenever Game Event is interrupted for significant time, as a rule of thumb it is better to roll back the interrupted Game Event rather than trying to restore the exact Game World State in the middle of the Game Event.

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Just like Scaling Up, improving performance doesn’t provide infinite scalability. However, it happens that it is all about numbers.

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Contrary to popular belief, there are benefits of Docker containers which go beyond providing poorly written programs with exact versions of their dependencies

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I do not buy a rather popular argument that “to achieve scalability, apps and middleware should be stateless”