Hld
System Design
Easy
ChronosStream IoT Historian
Design an IoT data historian service that allows industrial clients to store and query sensor data. The system must ingest 1 million metrics per second from various sensors (temperature, pressure) across multiple clients. Clients need to query historical trends for the last 30 days. How do you handle the massive write volume and provide efficient range queries?
Key concepts
time-series storagemulti-tenancydata retention
Practise this out loud — free
Start a mock interview on THIS exact question — a voice AI interviewer opens with it, pushes back like a real onsite, then hands you an instant scorecard.
🎙 Practise this question now