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A comment on Paxos vs. Raft: Have we reached consensus on distributed consensus?. Parent comment

Re:Paxos vs. Raft: Have we reached consensus on distributed ... by gravypod on Friday July 16, 2021 @05:32PM (#27861485)
If you want to know just how hard this can be with bare metal that you control, take a look at this: https://signalsandthreads.com/clock-synchronization/
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Re:Paxos vs. Raft: Have we reached consensus on distributed ... by jeffbee on Friday July 16, 2021 @06:43PM (#27862021)
On the other hand, if you run in Google Compute Engine you get accurate clock discipline for free.
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Re:Paxos vs. Raft: Have we reached consensus on distributed ... by electricshampo1 on Friday July 16, 2021 @08:16PM (#27862583)
This is just best effort on google's end right? Don't think anything is documented/guaranteed such that you would be able to, for ex. rely on it like spanner's use of true time.
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Re:Paxos vs. Raft: Have we reached consensus on distributed ... by jeffbee on Friday July 16, 2021 @09:28PM (#27862909)
Sure, you'd have to invent the rest, but TrueTime isn't about having perfect clocks, it's about estimating the error of your peer's clocks. Having a reasonable platform clock is a good starting point, and addresses the problems discussed in the Jane Street article.
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