Streaming Ingest for a Distributed Cloud Database

HardSystem Design00:00

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Problem

Design a streaming/ingest service for a distributed cloud database.

Asked in the Round 4: Design stage. Treat this as a practical system design exercise. Clarify workload, delivery, ordering, durability, replay, schema evolution, and operational requirements before proposing the architecture.

Address:

Ingestion APIs, partitioning, routing, buffering, and write paths.
Durability, retries, deduplication, ordering, and backpressure.
Failure recovery, replay, multi-region behavior, and observability.
Online versus batch processing, including where ML-based anomaly detection could safely fit.
Capacity planning, testing, and operational tradeoffs.