Portal de Periódicos da CAPES

Spanner

2013; Association for Computing Machinery; Volume: 31; Issue: 3 Linguagem: Inglês

10.1145/2518037.2491245

1557-7333

James C. Corbett, Peter Hochschild, Wilson C. Hsieh, Sebastian Kanthak, Eugene Kogan, Hongyi Li, Alexander Lloyd, Sergey Melnik, David Mwaura, David F. Nagle, Sean Quinlan, Jay B. Dean, Rajesh Rao, Lindsay Rolig, Yasushi Saitō, Michal Szymaniak, Christopher M. Taylor, Ruth Wang, Dale Woodford, Michael Epstein, Andrew Fikes, Christopher Frost, J. J. Furman, Sanjay Ghemawat, Andrey Gubarev, Christopher Heiser,

Advanced Data Storage Technologies

Spanner is Google's scalable, multiversion, globally distributed, and synchronously replicated database. It is the first system to distribute data at global scale and support externally-consistent distributed transactions. This article describes how Spanner is structured, its feature set, the rationale underlying various design decisions, and a novel time API that exposes clock uncertainty. This API and its implementation are critical to supporting external consistency and a variety of powerful features: nonblocking reads in the past, lock-free snapshot transactions, and atomic schema changes, across all of Spanner.