Scenario
In RocketMQ, you need to be cautious when deleting a topic. Generally, a topic needs to be deleted in the following scenarios:
l Undesired topic: When the business relying on the topic has ended or the topic is no longer needed, you can delete the topic to release resources and simplify management.
l Incorrect or inappropriate topic configuration: If you create a topic with incorrect or inappropriate configurations, you can delete the topic and re-create one.
l Data archiving or cleaning: In some cases, you may need to archive or clean up the topic data to free up storage space. Before archiving or cleaning, you need to back up or migrate the messages in the topic elsewhere to ensure data integrity and recoverability.
You need to pay attention to the following points before deleting a topic:
l Ensure that the messages in the topic are processed and consumed correctly to avoid data loss or processing interruption.
l Stop producer and consumer operations on the topic to avoid data conflicts or loss.
l Ensure that only authorized personnel such as an administrator or a user with appropriate permissions can delete a topic.
l Back up important data in the topic to avoid misoperation or data loss.
To sum up, you need to carefully consider and evaluate it when deleting a topic to ensure that business and data are not irreversibly affected.
Procedure
1. Go to the topic management menu.
2. Select the topic to be deleted, and select Delete in the More drop-down box.
Notes::
l Before deleting a topic, ensure that you have stopped all producers and consumers of the topic.
l Message data will be lost after the topic is deleted.