How to check the remaining number of messages in Kafka?

To check the remaining number of messages in Kafka, you can use one of the following methods:

1. To access the remaining message count in a consumer group, you can utilize Kafka’s built-in command-line tool kafka-consumer-groups.sh. Simply run the following command:
2. Show details of a consumer group using kafka-consumer-groups script with the specified bootstrap server and group.
3. The is the startup server address of the Kafka cluster and is the name of the consumer group you want to view. After running the command, you will be able to see detailed information about the consumer group, including the current offset and remaining message count for each partition.
4. If you are using Kafka management tools such as Kafka Manager or Confluent Control Center, you can view the remaining message count for consumer groups in the user interface of these tools.
5. When programming with Kafka: If you are connecting to a Kafka cluster programmatically and using a Kafka programming client, such as the Java or Python Kafka client, you can utilize the client’s API to inquire about the remaining message count for a consumer group. The specific methods and code may vary depending on the client library you are using, so you can refer to the corresponding documentation or example code for implementation.

Please note that the remaining message count is relative to the current consumer group offset of each partition, not the total number of messages in the entire topic.