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Spanner: Google’s Planet-Spanning Database

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If you have a question about this talk, please contact Jan Samols .

Spanner is Google’s scalable, multi-version, globally distributed, and synchronously-replicated database. It is the first system to distribute data at global scale and support externally-consistent distributed transactions. This talk gives an overview of Spanner as well as a brief deep dive into the transaction & concurrency handling of Spanner which uses a novel time API that exposes clock uncertainty and utilizes GPS as well as atomic clocks. This API and its implementation are critical to supporting external consistency and a variety of powerful features: nonblocking reads in the past, lock-free read-only transactions, and atomic schema changes, across all of Spanner.

This talk is part of the Technical Talks - Department of Computer Science and Technology series.

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Donald McIntyre Building, Faculty of Education, 184 Hills Road, Cambridge, CB2 8PQ, room 2S4 online via Zoom - contact organiser for details Center for Mathematical Sciences, Lecture room MR2

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