Deleting a Kafka Consumer Group

Notes and Constraints

• If auto.create.groups.enable is set to true, the consumer group status is EMPTY, and no offset has been submitted, the system automatically deletes the consumer group 10 minutes later.
• If auto.create.groups.enable is set to false, the system does not automatically delete consumer groups. You can manually delete them.
• If a consumer group has never committed an offset, the group will be deleted after the Kafka instance restarts.

Prerequisites

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

Deleting a Consumer Group on the Console

1. Log in to the 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 OK.

Using the CLI to Delete a Consumer Group

The following uses Linux as an example.

• For a Kafka instance with SASL disabled, run the following command in the /bin directory of the Kafka client:

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

  Parameter description:

  • connection-address: can be obtained from the Connection area on the Basic Information page on the Kafka console.
  • consumer-group-name: consumer group name.

  Example:

  [root@ecs-kafka bin]# ./kafka-consumer-groups.sh --bootstrap-server 192.168.xx.xx:9092,192.168.xx.xx:9092,192.168.xx.xx:9092 --delete --group group-01
  Deletion of requested consumer groups ('group-01') was successful.
  [root@ecs-kafka bin]#

• For a Kafka instance with SASL enabled, do as follows:
  1. (Optional) If the SSL certificate has been configured, skip this step and go to 2. Otherwise, do as follows:

     Create the ssl-user-config.properties file in the /config directory of the Kafka client and add the SSL certificate configurations by referring to 3.

  2. In the /bin directory of the Kafka client, run the following command:

     ./kafka-consumer-groups.sh --bootstrap-server ${connection-address} --delete --group ${consumer-group-name} --command-config ../config/ssl-user-config.properties

     Parameter description:

     • connection-address: can be obtained from the Connection area on the Basic Information page on the Kafka console.
     • consumer-group-name: consumer group name.

     Example:

     [root@ecs-kafka bin]# ./kafka-consumer-groups.sh --bootstrap-server 192.168.xx.xx:9093,192.168.xx.xx:9093,192.168.xx.xx:9093 --delete --group group-02 --command-config ../config/ssl-user-config.properties
     Deletion of requested consumer groups ('group-02') was successful.
     [root@ecs-kafka bin]#