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donavanm
on Oct 5, 2012
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Twitter, PayPal reveal database performance
Just the concept of using time for the logical clock is sketchy. It's not monotonically increasing, it drifts, it can go decrease, etc... Curious what their cross host/region ordering and consistency looks like.
sanxiyn
on Oct 5, 2012
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"An atomic clock is not that expensive." --
http://research.google.com/archive/spanner.html
jrockway
on Oct 6, 2012
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Indeed. A GPS clock accurate to 50ns is around $25 on eBay.
mikecb
on Oct 5, 2012
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Especially since there are 24 circling the earth that send out time continuously.
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