How do I delete a Kafka Consumer Group to reset offsets?

Question

I want to delete a Kakfa consumer group so that when the application creates a consumer and subscribes to a topic it can start at the beginning of the topic data.

Th

Answer 1

If you use Java client, you can first get the beginning offset.

TopicPartition partition = new TopicPartition("YOUR_TOPIC", YOUR_PARTITION);
Map map = consumer.beginningOffsets(Collections.singleton(partition));

And the offset that consumer using to start processing, (if not delete the consumer group).

Long committedOffset = consumer.committed(partition).offset();

Now, if you think start from committedOffset is ok, just poll records. if you want the beginning offset, consumer.seek(partition, map.get(partition));