Using RocketMQ mqadmin Commands for Monitoring and Managing Topics, Producers, and Consumers

Switch to the RocketMQ /usr/local/rocketmq/bin directory: cd /usr/local/rocketmq/bin List all available mqadmin commands: sh mqadmin Show help for a specific command: sh mqadmin <command> -h Monitor producer network connections:

sh mqadmin producerConnection -n localhost:9876 -g <producer-group> -t <producer-topic>

Monitor consumer network connections:

sh mqadmin consumerConnection -n localhost:9876 -g <consumer-group>

Check consumer consumption status:

sh mqadmin consumerProgress -n localhost:9876 -g <consumer-group>

Query whether a message was sent successfully and retrieve specific topics:

sh mqadmin topicList -n localhost:9876 | grep <topicName>

View topic status:

sh mqadmin topicStatus -n localhost:9876 -t <topicName>

Retrieve messages by offset:

sh mqadmin queryMsgByOffset -n localhost:9876 -b <broker-name> -i <queueId> -o <offset> -t <topicName>

Retrieve messages by message ID:

sh mqadmin queryMsgById -n localhost:9876 -i <offsetMsgId>

Check if a message was consumed successfully and view message details: sh mqadmin queryMsgById -i {MsgId} -n {NameServerAddr} List consumer groups subscribed to a topic (no direct query, filter after listing all):

sh mqadmin statsAll -n <NameServerAddr> | grep <TOPIC>

Shut down the NameServer and all brokers:

sh mqshutdown namesrv

sh mqshutdown broker

View all consumer groups: sh mqadmin consumerProgress -n 192.168.20.40:9876 View topic data accumulation for a specific consumer group:

sh mqadmin consumerProgress -n 192.168.20.40:9876 -g GroupConsumer

List all topics and view detailed statistics:

sh mqadmin topicList -n 192.168.20.40:9876

sh mqadmin topicstatus -n 192.168.20.40:9876 -t myTopicTest1

Create a new topic:

sh mqadmin updateTopic –n 192.168.20.43 –c DefaultCluster –t ZTEExample

Delete a topic:

sh mqadmin deleteTopic –n 192.168.20.43:9876 –c DefaultCluster –t ZTEExample