Canary instances overloaded
A traffic-splitting/weighted-routing change accidentally sent a large share of traffic (80% instead of 5%) to a canary or a small/underprovisioned set of instances, overloading them. How do you respond?
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
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.
Run or narrate your approach, then ask the coach.