What kind of index is redis node information stored in?

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Hi??All??

        In the topology diagram shown in the attachment, what kind of index is 
the redis node information stored in??Please answer me, thank you!




7: {id: "MTAuMS4xLjQ2OjEwMDA1.0", name: ??****:10005", type: "Unknown", 
isReal: false}

8: {id: 
"ci1qNmNzeTVkaTh1bHVyZHdudWYucmVkaXMucmRzLmFsaXl1bmNzLmNvbTo2Mzc5.0",??}

id: "ci1qNmNzeTVkaTh1bHVyZHdudWYucmVkaXMucmRzLmFsaXl1bmNzLmNvbTo2Mzc5.0"

isReal: false

name: ??r-****.redis.rds.aliyuncs.com:6379"

type: "Redis"