intermediate · resources
Fifty Megabytes an Hour
Memory grows about 50 MB per hour under stable traffic, and the process restarts every day or two. How do you investigate?
Practical scenario
A Node service restarts on its memory limit every 30–40 hours. Traffic is flat across the week. Latency degrades noticeably in the hours before each restart.
What it tests
- • Whether the candidate separates a leak from legitimate growth
- • Knowledge of heap comparison as the method
- • Awareness that an unbounded cache fails like a leak