On-callEasyoc-g537

Subject Log volumeLevel Entry–Mid~15 minCommon in Storage & CDN interviewsIndustries Software development, Technology

Question

Right after a deploy this afternoon, every host in a service's pool starts running low on disk, all at once, and disk usage is climbing fast — not over days, but over minutes. The application is still serving traffic but is slowing down. You notice the new release turned on debug-level logging. How do you triage and stop the disk from filling?

What a strong answer looks like

Stop the bleeding first (mitigate), then form hypotheses from real signals. Separate root cause from symptom, communicate status as you go, and close with what prevents a repeat.

Learn the concepts

Diagram & narrate the incident

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Run or narrate your approach, then ask the coach.