Code RoomPartial network partition diagnosis
HardPrep Room Coding #3054

Partial network partition diagnosis

On-callReliability & on-callCode quality & reviewSenior–Staff~20 min

Some services can reach a dependency and others can't — a partial network partition. Failures are intermittent depending on which host serves the request. How do you diagnose?

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.

0:00 of about 20 min
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