advancedKafka Reliability & Throughput122 of 469
How would you design an idempotent Kafka consumer?
Tests whether you reach for a dedup mechanism keyed on a unique message ID -- an upsert with a unique constraint, a processed-IDs table/cache, or Kafka's transactional/exactly-once producer semantics -- rather than assuming at-least-once delivery is safe to process blindly.
Ready to master this question?
Generate a complete walkthrough — background, the full answer in plain language, a working code example explained line by line, a real-world scenario, common mistakes, and how this same question gets asked in different ways.
Sign in to generate a response