SYSTEM-DESIGN-BASICS5 MIN READ
Consistency Under Partition Pressure
Make a converging sequence of design decisions for consistency under partition pressure.
Pressure moment Asha’s inventory service shows two buyers the last concert ticket, and support is already issuing refunds. The first fork determines every later trade-off. Decision walk CAP theorem / distributed consistency trade-offs Follow invariant, boundary, and recovery in order. Shortcut Pick a tool first. A defensible recommendation 01 Invariant 02 Boundary 03 Recovery Step 1 What is the first call? Step 2
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