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Hadoop dfsadmin-safemode leave command forcibly leaves

Hadoop dfsadmin-safemode command

Format: Usage: java DFSAdmin [- safemode enter | leave | get | wait]

You can operate the security mode through dfsadmin-safemode value. The parameter value is described as follows:

Enter-enter safe mode

Leave-forces NameNode to leave safe mode

Get-returns information about whether safe mode is enabled or not

Wait-wait until the end of safe mode

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