Everything - But the Kitchen - Syncs
summary
An open-source library called Core Data Ensembles syncs Core Data SQLite stores by exporting save operations as transaction deltas, replaying them on peers, and using vector clocks to resolve concurrency deterministically. It exposes a backend-agnostic file API so it works with iCloud/Dropbox/local file system, requires only ~20 lines to attach to an existing stack, totals ~6,000 lines of framework code plus ~3,500 lines of unit tests, and the first full sync is working and available on GitHub.
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chapters (12)
- 0:00Intro
- 0:40Drews background
- 2:20Drews interest in sync
- 5:25Sync in general
- 8:20Solutions
- 15:32PeertoPeer Networks
- 16:15Database Sync
- 28:50Design constraints
- 31:32Implementation
- 33:07Merging
- 37:12Source Code
- 39:55Current Status
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