System designHardsd-g263

Subject Upload pipelineLevel Senior–Staff~50 minCommon in Distributed systems interviewsIndustries Technology

Question

Design a globally-distributed media ingest system for a short-video app where creators worldwide upload from mobile and the uploaded video must become available to a global audience fast, regardless of where the creator is. A creator in Jakarta uploading to a US-region origin gets terrible throughput and slow first-publish. You must minimize upload latency and first-byte-to-published time while keeping a coherent global view of content. Design the edge ingest, the path from edge to processing, and the consistency model.

What a strong answer looks like

Clarify scale and constraints first. Propose a clean component breakdown, then go deep on the hard parts — data model, bottlenecks, consistency, failure modes — and name the trade-offs you are making.

Learn the concepts

Narrate your design

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Run or narrate your approach, then ask the coach.