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Google Spanner

Google Spanner. What is it ? How does it work ? Future Scale Architecture Terms. www.semtech-solutions.co.nz info@semtech-solutions.co.nz. Google Spanner – What is it ?. The world's largest distributed database Internally used by Google

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Google Spanner

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  1. Google Spanner • What is it ? • How does it work ? • Future Scale • Architecture • Terms www.semtech-solutions.co.nz info@semtech-solutions.co.nz

  2. Google Spanner – What is it ? • The world's largest distributed database • Internally used by Google • Has a true time API to avoid latency problems • Supports Google's Advertising business • It is fault tolerant to large scale outages • Offers very high availability and latency • Aiming for 99% and 50 ms www.semtech-solutions.co.nz info@semtech-solutions.co.nz

  3. Google Spanner – How does it work ? • Has a true time API • Atomic clocks • GPS Clocks • Locally determine accurate time • No need for global time sync • One single global name space • Data stored globally via directory namespace • Uses a Paxos algorithm www.semtech-solutions.co.nz info@semtech-solutions.co.nz

  4. Google Spanner – Scale • How big is it , what are they aiming for ? • Aiming for 107 machines • 1013 directories • 1018 bytes of storage • 1000's of storage locations • 109 clients • Current data centres up to 100 ms apart www.semtech-solutions.co.nz info@semtech-solutions.co.nz

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