CP Database: Spanner && cockroachdb It uses the Paxos algorithm as part of its operation to shard data...

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CP Database: Spanner && cockroachdb
It uses the Paxos algorithm as part of its operation to shard data across hundreds of datacenters. It makes heavy use of hardware-assisted time synchronization using GPS clocks and atomic clocks to ensure global consistency.
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https://www.youtube.com/watch?v=ndKj77VW2eM
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http://cockroachdb.org/

Sebastian Kanthak overviews Spanner, covering details of how Spanner relies on GPS and atomic clocks to provide two of its most innovative features: Lock-free strong (current) reads and global snapshots that are consistent with external events.

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