How to Maintain Increasingly Large TiKV Node Capacity?

This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: tikv 节点的容量越来越大 如何维护?

| username: 宸凡_22

[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version]
[Reproduction Path] What operations were performed when the issue occurred
[Encountered Issue: Issue Phenomenon and Impact]
[Resource Configuration] Go to TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page
[Attachments: Screenshots / Logs / Monitoring]

The capacity of the TiKV node servers is increasing, but based on the business data volume, it shouldn’t be this large, even though the data is stored in 3 copies. I suspect that there might be junk data (more than 3 copies of unnecessary data) on the TiKV nodes. If that’s the case, how can it be cleaned up?