What are the requirements on host names in a FusionInsight cluster?

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A host name can contain digits 0-9, letters a-z (lowercase and uppercase), and hyphens (-), but cannot contain only digits. The host name must be unique.

Other related questions:
Host naming rule in a FusionInsight cluster
A host name can contain digits 0-9, letters a-z (lowercase and uppercase), and hyphens (-), but cannot contain only digits. The host name must be unique.

Host rack naming rule in FusionInsight clusters
n FusionInsight cluster, the rack name consists of letters, digits, and underscores (_), and the maximum length is 200 characters. The name format is /level1/level2/..., for example, /default/rack0. The rack name must comply with the actual network topology represented by level. The levels are separated by slashes (/).

How do I name a host in a FusionInsight cluster?
A host name can contain digits 0-9, letters a-z (lowercase and uppercase), and hyphens (-), but cannot contain only digits. The host name must be unique.

Requirement for the SSID name
For V200R005 and earlier versions, the SSID name cannot contain Chinese characters. It is recommended that you change spaces into underscores (_).

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