Redis Fraud Feature Store - live inference

Fraud Feature Store

real-time inference on the Redis online store

connecting…

MongoDB

offline store

RDI

CDC stream-sync · lag —ms

Inference

decision · O(1)

offline feature store

batch · model training

2,000 card_features

500 merchant_features

300 terminal_features

The model trains here. Nothing serves inference from here, RDI mirrors the latest state into Redis.

SCORING NOW

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· · ·

Redis lookup — ms O(1) · last-write-wins · no TTL

online store · O(1)

last-write-wins · no TTL · in-memory

throughput

0 txn/s

p99 lookup

0.0 ms

fraud blocked

Live RDI propagation change the offline store, watch it reach Redis demo card card_000001 · the app writes to MongoDB only, never to Redis

1 · MongoDB offline

idle

2 · RDI sync (CDC)

idle

3 · Redis online · decision

idle

real-time scoring · O(1) reads from the Redis online store · ~12% fraud in the stream

Redis fraud feature store: MongoDB offline store on the left, Redis online store on the right, an RDI stream-sync belt between them, and a center verdict that flips green or red with the sub-millisecond Redis lookup time.