#read your writes

2 posts

Just Enough Agreement: read your writes, and why not to over-buy consistency
Projects 3 min

Just Enough Agreement: read your writes, and why not to over-buy consistency

Just Enough Agreement is Episode 3 of Learning Maps, a Napkin Films series that turns system design into story. Strong consistency is the expensive default, a cathedral when a sticky note would do. The skill is buying the cheapest guarantee the story actually needs: read your writes, monotonic reads, session consistency. Hand drawn on a napkin, narrated by two cloned voices, scored with a 14 Hz focus layer. CC BY 4.0.

The Dial: quorum, R plus W greater than N, and tuning consistency by counting
Projects 3 min

The Dial: quorum, R plus W greater than N, and tuning consistency by counting

The Dial is Episode 2 of Learning Maps, a Napkin Films series that turns system design into story. Consistency is not on or off. It is a dial you set by counting: with N copies, when your reads plus your writes are greater than N, a read is forced to overlap a write and see the latest truth. Hand drawn on a napkin, narrated by two cloned voices, scored with a 14 Hz focus layer. CC BY 4.0.