Ad Click Aggregator
Exactly-once aggregation with Flink two-phase commit, click fraud detection in the stream, watermarks for late mobile data, budget enforcement that cannot overspend, and attribution joins.
Exactly-once aggregation with Flink two-phase commit, click fraud detection in the stream, watermarks for late mobile data, budget enforcement that cannot overspend, and attribution joins.
Fan-out to five million viewers, adaptive sampling so clients survive 100k comments/sec, moderation without ingestion lag, and syncing comments to video playback time rather than wall clock.
High-cardinality time series, Gorilla compression, ingestion at 100M points/sec, rollups, alert evaluation at scale, and defending the TSDB from your own users.
Location ingest at a million pings/sec, dispatch as a matching problem, surge from H3 supply-demand ratios, HMM map matching, and a trip state machine that survives dead zones.
Chunked parallel transcoding, per-title encoding ladders, multi-tier CDN economics, resumable uploads of 100 GB files, dedup-aware view counting, and storage tiering for the long tail.
Count-Min Sketch and Space-Saving for memory-bounded heavy hitters, exponential decay for non-stationary popularity, two-tier top-k merging, and why approximate merges are not exact.