[BUG]redis 集群模式下，scan命令返回的结果只是某一个节点的，不是整个集群的。

[xiechengsiii]

Tiny RDM Version What version of Tiny RDM are you using?

OS Version Which OS and version you launch? (Mac/Windows/Linux)

Redis Version Which version of Redis are you using?

Describe the bug A clear and concise description of what the bug is.

Steps to Reproduce:

[tiny-craft]

是不是没有全量加载所有key，key太多会分批加载，需要手动完全加载，它会在所有节点都执行scan的