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Interestingly, Google's successor to BigTable -- Spanner -- utilizes GPS clocks and atomic clocks to maintain consistency of their data across globally-distribu
by ihsw 13y ago
Interestingly, Google's successor to BigTable -- Spanner -- utilizes GPS clocks and atomic clocks to maintain consistency of their data across globally-distributed data stores.
http://en.wikipedia.org/wiki/Spanner_(database) http://en.wikipedia.org/wiki/Spanner_(database)
- jcurbo 13y agoThis is not unique to Google, GPS is widely used as a time source for telecommunications and as an input to NTP daemons.
- sargun 13y agoAlso, Google uses accurate atomic clocks in each of their datacenters, so when their GPS connectivity gets cutoff, they can still keep time. Almost everyone does.