Code RoomConnection count climbs all day
MediumPrep Room Coding #3032

Connection count climbs all day

On-callReliability & on-callSenior~20 min

Your app is throwing 'too many connections' / pool-exhausted errors under normal traffic — connection counts climbed all day until they maxed out. Diagnose and mitigate.

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.