Couchbase Lite OSCON - Speaker Deck

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Lite

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Sync is the Future of Mobile Data

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What is Sync? Lite

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Data Structures

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Collec9on Sync & Conﬂict Management

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Collec9on Sync •Brute Force •Merkle Trees •Sparse Sequences

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Ini9al Sync 3 1 2 5 4 A B 3 1 2 5 4

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Brute Force 3 1 2 5 4 A B 3ʹ′ 1 2ʹ′ 5ʹ′ 4 3ʹ′ 1 2ʹ′ 5ʹ′ 4

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Merkle Trees 3 1 2 5 4 A B 1 5ʹ′ 4 3ʹ′ 2ʹ′ 5ʹ′ 3ʹ′ 2ʹ′

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Sparse Sequences 3 1 2 5 4 A B 1 5ʹ′ 4 3ʹ′ 2ʹ′ 5ʹ′ 3ʹ′ 2ʹ′

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Sparse Sequences allow Subset Sync 2 4 A B 1 5ʹ′ 4 3ʹ′ 2ʹ′ 2ʹ′ 3 1 5 C 5ʹ′ 3ʹ′

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Collec9on Sync •Brute Force •Merkle Trees •Sparse Sequences

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Vector Clocks • Scale with the # of processes upda9ng an item

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Revision Trees {counter, content hash} 4-‐3a14f7d8 5-‐d7ad89bd 4 4 4 3 3 3 2 2 2 3

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Revision Trees 1 2 3 1 2 3 4 4

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Revision Trees 1 2 3 1 2 3 4 4 4

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Revision Trees 1 2 3 1 2 3 4 4 4

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Revision Trees 1 2 3 4 1 2 3 4 4 4

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Revision Trees 1 2 3 4 4 1 2 3 4 4

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Revision Trees 1 2 3 1 2 3 1 2 3 4 4 4 4 4 3 4

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Revision Trees 1 2 3 1 2 1 2 3 4 4 4 4 4 3 3 4

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Revision Trees 1 2 3 1 2 1 2 3 4 4 4 4 4 3 3 4 5 4

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Revision Trees 1 2 3 1 2 1 2 3 4 4 4 3 3 4 5 5 4 4

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Revision Trees 1 2 3 1 2 1 2 4 4 3 3 4 5 5 3 3 4 4 5 4 4

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Conﬂict Detec9on and Management •Vector Clocks •Revision Trees

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Couchbase Lite

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Couchbase Lite Dalvik Cocoa Couchbase Lite Couchbase Lite • NoSQL JSON documents binary a7achments views and queries • Lightweight na;ve Objec;ve-‐C / Java less than 1MB library size • Robust SQLite storage engine is part of the opera;ng system standard library “The best database for mobile devices.”

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Sync Gateway Sync Gateway App Server Access Control Push No;ﬁca;ons etc Couchbase Server • Sync Engine HTTP sync protocol Compa;ble with lots of clients • Access Control User management Channels Applica;on override! • Easy to deploy Go run;me works on all supported Couchbase Server plaQorms Buil;n lightweight storage for development mode

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Sync Gateway App Server Access Control HTTP / JSON Sync Couchbase Server Dalvik Cocoa Couchbase Lite Couchbase Lite Push No;ﬁca;ons etc

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One Page of Cloud

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One Page of Cloud

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Data Routing Data Data

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Data Routing Data Data Data

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Data Routing Data Data Data Data

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Data Routing Data D ata Data Data Data

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Data Routing Data D ata Data Data Data Data

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Data Routing Data Data Data Data Data Data

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Demo -‐ CouchChat

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New PhoneGap Plugin haps://github.com/couchbaselabs/LiteGap plugman -‐-‐platform $PLATFORM -‐-‐project ~/MyPhoneGapApp -‐-‐plugin https://github.com/couchbaselabs/LiteGap.git

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Use Cases

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Medical Records • NoSQL ﬂexible schema integrates well with exis9ng systems • Staﬀ can carry data with them to pa9ents • WiFi limited in hospitals

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Retail / Loyalty / Point of Sale •

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Airline • Flight plans • Passenger manifest and purchases • Mobile to mobile sync in the air • Connects to cloud on the ground

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Personal Data Timebox by Pepper Networks • contacts, photos, etc

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Games and Social Media • Fine grained sharing & messaging • Great for turn-‐based games, chat

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Collabora9on “Groupware” • Con9nuous sync • Conﬂict detec9on • Rich data model h7p://www.hubapp.com/

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Thank You Chris Anderson @jchris haps://groups.google.com/forum/#!forum/mobile-‐couchbase haps://github.com/couchbaselabs/LiteGap haps://github.com/couchbase/couchbase-‐lite-‐ios haps://github.com/couchbase/couchbase-‐lite-‐android