System Design · Pinterest · Hard
Ad Click Event Aggregation System Medium · System Design · · 1. Overview This system turns a flood of ad-serving and user-action signals into dashboard-friendly counts that product and ad teams can query rapidly. The result appears straightforward—grouped by ad, action type, and region—but the complexity stems from the fact that those facts arrive via separate pathways, often duplicated, delayed, and must still converge to a trustworthy view. High-level data flow for ad…
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