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Data & Analytics

Design an Ad Click Aggregator (High-throughput event stream)

A billing-critical pipeline that ingests massive click/impression event volume and produces exactly-once, deduplicated aggregate counts.

Open and Simulate this Architecture in InfraDraft

Core Architectural Components

Click/Impression Event Ingestion

Kafka-style stream absorbing bursty, extremely high event volume.

Stream Deduplication Service

Filters duplicate and fraudulent click events before they're counted.

Windowed Aggregation Engine

Tumbling/sliding window rollups per campaign and time bucket.

Exactly-Once Processing Guarantee Layer

Ensures a click is billed exactly once even under retries or failover.

OLAP Aggregate Store

Serves per-campaign rollups for reporting and billing queries.

Late-Arrival/Watermarking Handler

Correctly folds delayed events into the right time window.

Billing Reconciliation Service

Cross-checks aggregate counts against advertiser billing records.