doc-exports/docs/dms/umn/kafka_ug_0021.html

Querying the Kafka Consumer Group List

After a consumer group is created, you can view its configuration and status.

Viewing the Consumer Group List (Console)

1. Log in to the console.
2. Click in the upper left corner to select the region where your instance is located.
3. Click Service List and choose Application > Distributed Message Service. The Kafka instance list is displayed.
4. Click the desired instance to go to the instance details page.
5. In the navigation pane, choose the Consumer Groups tab.

   The consumer group name, status, and Coordinator (ID) are displayed. Coordinator (ID) indicates the broker where the coordinator component is located. The consumer group status can be:

   • 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.

6. (Optional) To query a consumer group, enter a consumer group name or status, Coordinator (ID), or keyword, then press Enter.
7. (Optional) To refresh the consumer group list, click in the upper right corner.

Viewing the Consumer Group List (Kafka CLI)

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

  ./kafka-consumer-groups.sh --bootstrap-server {connection-address} --list

  Parameter description: connection-address indicates the Kafka instance address, which can be obtained in the Connection area on the Basic Information page on the Kafka console.

  Example:

  [root@ecs-kafka bin]# ./kafka-consumer-groups.sh --bootstrap-server 192.168.xx.xx:9092,192.xx.xx.212:9092,192.xx.xx.147:9092 --list
  test
  __consumer-group-dial-test
  [root@ecs-kafka bin]#

• For a Kafka instance with ciphertext access enabled, do as follows:
  1. (Optional) If the username and password, and 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. Add the username and password, and the SSL certificate configuration by referring to 3.

  2. Run the following command in the /bin directory of the Kafka client:

     ./kafka-consumer-groups.sh --bootstrap-server {connection-address} --list --command-config ../config/{ssl-user-config.properties} 

     Table 1 Consumer group list query parameters

     Parameter	Description
     connection-address	Connection address of a Kafka instance. To obtain the address, choose Basic Information > Connection.
     ssl-user-config.properties	Configuration file name. This file contains username, password, and SSL certificate information.

     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 --list --command-config ../config/ssl-user-config.properties
     test
     __consumer-group-dial-test
     [root@ecs-kafka bin]#

Parent topic: Managing Consumer Groups