Deleting a Consumer Group

Prerequisites

The status of the consumer group to be deleted is EMPTY.

Method 1: Deleting a Consumer Group on the Console

1. Log in to the management console.
2. Click in the upper left corner to select a region.
   

   Select the region where your Kafka instance is located.

3. Click and choose Application > Distributed Message Service (for Kafka) to open the console of DMS for Kafka.
4. Click the desired Kafka instance to view the instance details.
5. In the navigation pane, choose the Consumer Groups tab.
6. Delete consumer groups using either of the following methods:
   • Select one or more consumer groups and click Delete Consumer Group above the consumer group list.
   • In the row containing the consumer group you want to delete, click Delete.
   

   A consumer group can be deleted only when its status is EMPTY.

   Consumer group statuses include:

   • DEAD: The consumer group has no member or metadata.
   • EMPTY: The consumer group has metadata but has no member.
   • PREPARING_REBALANCE: The consumer group is to be rebalanced.
   • COMPLETING_REBALANCE: All members have joined the consumer group.
   • STABLE: Members in the consumer group can consume messages normally.

7. In the displayed Delete Consumer Group dialog box, click Yes.

Method 2: Using the CLI to Delete a Consumer Group

The following uses Linux as an example.

1. Download Kafka CLI v1.1.0, v2.3.0, or v2.7.2. Ensure that the Kafka instance and the CLI are of the same version.
2. Use the CLI to connect to the Kafka instance. For details, see Accessing a Kafka Instance Without SASL or Accessing a Kafka Instance with SASL.
3. In the /{directory where the CLI is located}/kafka_{version}/bin/ directory, run the following command to delete a consumer group:

   ./kafka-consumer-groups.sh --bootstrap-server {Kafka instance connection address} --delete --group {consumer group name}

   [root@zk-server-1 bin]# ./kafka-consumer-groups.sh --bootstrap-server 192.168.1.245:9091,192.168.1.86:9091,192.168.1.128:9091 --delete --group bbbb
   Note: This will not show information about old Zookeeper-based consumers.
   Deletion of requested consumer groups ('bbbb') was successful.

   

   If SASL authentication is enabled for the Kafka instance, the --command-config {consumer.properties file with SASL authentication} parameter must be added to the preceding commands. For details about the consumer.properties file, see Accessing a Kafka Instance with SASL.