Dear Apache Pulsar Community, I hope this email finds you well.I am writing to suggest a potential improvement to the Pulsar-admin tool, which I believe could simplify the process of cleaning up tenants and namespaces in Apache Pulsar.
Currently, cleaning up all the namespaces and topics within a tenant or cleaning up all the topics within a namespace requires several manual steps, such as listing the namespaces, listing the topics, and then deleting each topic individually. This process can be time-consuming and error-prone for users. To address this issue, I propose the addition of a "clear" parameter to the Pulsar-admin tool, which would automate the cleanup process for tenants and namespaces. Here's a conceptual implementation: 1. To clean up all namespaces and topics within a tenant: ``` bash pulsar-admin tenants clear <tenant-name> ``` 2. To clean up all topics within a namespace: ```bash pulsar-admin namespaces clear <tenant-name>/<namespace-name> ``` By implementing these new parameters, users would be able to perform cleanup operations more efficiently and with fewer manual steps. I believe this improvement would greatly enhance the user experience when working with Apache Pulsar. I'd like to discuss the feasibility of this suggestion and gather feedback from the community. If everyone agrees, I can work on implementing this feature and submit a pull request for review. Looking forward to hearing your thoughts on this. Best regards, Xiangying
