A DLQ that is hard to drain is functionally a drop with extra storage cost
A medium Pipeline Design mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Pipeline Design
- Difficulty
- medium
Interview Prompt
A DLQ that is hard to drain is functionally a drop with extra storage cost. The section's three replay capabilities: inspection (decode the envelope and show payload, exception, attempts), annotation (edit a payload before replay with an audit trail), and bounded replay (throttled batch replay with dry-run and a second-failure side channel so a flood does not become a thundering herd). Build the replayer by adding a replay transform off the DLQ whose name covers all three capabilities, plus a side-channel destination for replays that fail again.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your pipeline design solution with real code execution
- Get instant feedback and a hire/no-hire decision