Jupyter Load Balancer

OAStripeLast reported February 2026Medium Frequency

Reported: 8× across candidate reports
First seen: September 2025
Last reported: February 2026
Reported outcome: mixed

Problem Overview

Implement a function route_requests(numTargets, maxConnectionsPerTarget, requests) that simulates a load balancer for a notebook platform running multiple Jupyter target servers. Targets are 1-based indexed. The function processes a list of request strings and returns a log of all successful connection routings. Request formats: - CONNECT,connectionId,userId,objectId — open a new WebSocket…

4 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
The rest of the problem statement — full requirements, constraints, and edge cases
Approach and trade-offs — what passing candidates did, and the mistakes that sink people

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Verified Source

Every question is reconstructed from multiple independent candidate reports. Verbatim follow-ups, not invented ones.

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Interviewer Follow-ups

The exact follow-ups reported by candidates, with the trigger that prompts each one — plus the mistakes that sink people.