The Next Track

A medium Pipeline Design interview practice problem on DataDriven. Write and execute real pipeline design code with instant grading.

Domain

Pipeline Design

Difficulty

medium

Seniority

mid

Problem

We run a music-streaming service where every play, skip, and save from 500 million listeners arrives as an event, and the recommender needs a listener's just-played tracks reflected in their suggestions within a minute or two. Those same events also feed the weekly model retraining that runs over months of history. Design the pipeline that serves fresh session features to the recommender in near real time while landing exactly-once training data for the batch jobs.

Practice This Problem

Solve this Pipeline Design problem with real code execution. DataDriven runs your solution and grades it automatically.