Design a large-scale Monitoring Platform
Last updated: August 5, 2025
Quick Overview
Design a scalable monitoring system that handles millions of requests. Discuss trade-offs in consistency, availability, and performance.
NVIDIA
System Design
Software Engineer
NVIDIA
August 5, 2025Software Engineer
Onsite
System Design
Medium
513
11
4,351 solved
Design a scalable monitoring system that handles millions of requests. Discuss trade-offs in consistency, availability, and performance.
System design interviews at NVIDIA typically last 45-60 minutes. You are expected to drive the conversation, starting from requirements gathering through to a detailed architecture. The interviewer will evaluate your ability to handle ambiguity and make practical engineering decisions.
What the Interviewer Expects
- Systematically gather requirements and estimate capacity (QPS, storage, bandwidth)
- Design a scalable architecture with clear component responsibilities
- Make well-reasoned database and caching decisions with trade-off analysis
- Address consistency vs availability trade-offs specific to the use case
- Discuss partitioning strategy, replication, and data modeling
- Cover failure handling, monitoring, and alerting strategies
Key Topics to Cover
Failure handling and fault tolerance
Requirements gathering and capacity estimation
Load balancing and horizontal scaling
Security and authentication
Monitoring, logging, and alerting
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
Possible Follow-up Questions
- How would you handle schema migrations with zero downtime?
- What monitoring and alerting would you set up on day one?
- What happens if one of your database nodes goes down?
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Requirements
Functional Requirements
- Real-time Monitoring: The system should monitor GPU utilization, temperature, memory usage, and network activity across all NVIDIA devices in real-time.
- **Alerts ...
Capacity Estimation
Back-of-Envelope Calculations
- User Base: Assume NVIDIA has 1 million devices in operation.
- Requests per Device: Each device can generate 5 metrics per second, leading to 5 million me...
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