Code RoomService OOM-killing every 30 minutes
MediumPrep Room Coding #3018

Service OOM-killing every 30 minutes

On-callReliability & on-callMid–Senior~20 min

A service is OOM-killing and restarting roughly every 30 minutes, dropping requests on each restart. Walk through diagnosis and mitigation.

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.