Time in distributed systems

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Time in distributed systems

| created by janarez | Add topic "Time in distributed systems"
Title
Time in distributed systems
Description
In distributed systems, time is a problem. Each computer has a clock built in, but those clocks are independent. The clocks on different machines can vary quite a bit. If a human being is setting them, then they’re probably at best accurate to one second. Even using a protocol like NTP, which synchronizes clocks between different computers, you can only get the clocks accurate to within about a millisecond of each other. But for a lot of things that we want to do with a collection of computers, we need to know what event happened first.
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http://www.goodmath.org/blog/2016/03/16/time-in-distributed-systems-lamport-timestamps/

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(detached) Hybrid logical clock
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