A 14-day-old consumer-logic bug in the Flink job was just discovered

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

Domain

Pipeline Design

Difficulty

medium

Problem

A 14-day-old consumer-logic bug in the Flink job was just discovered. Plan the replay. Walk the section's three-leg checklist on this canvas: a retention window long enough to cover the cycle, an addressable-position mechanism, and an idempotent destination that absorbs replay. Make the structural change for any leg the canvas does not already satisfy.

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