Netflix's Distributed Counter Abstraction

Netflix's engineers describe the counting service they built on top of their TimeSeries abstraction to handle 75,000 counter requests per second at single-digit-millisecond latency, the kind of "boring" infrastructure problem that turns out to be genuinely hard once you need it fast and consistent-enough at global scale. I like this as a case study in building a narrow, well-defined abstraction on top of an existing platform primitive instead of reinventing storage from scratch for every new use case. Relevant to anyone building shared counting or aggregation infrastructure.

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