Consumer Part 6 - Replaying Data

The video tutorial explains how to verify Kafka consumer offsets and ensure data catch-up in Elasticsearch. It demonstrates stopping a consumer, resetting offsets, and correcting commands to reset offsets for a specific topic. The tutorial also covers replaying data and ensuring idempotency to avoid duplicates in Elasticsearch.

How does idempotency in a consumer affect data replay in Elasticsearch?

What is the significance of ensuring that Elasticsearch does not have duplicates when replaying data?