hbase-shell/src/main/ruby/shell/commands/is_in_maintenance_mode.rb

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module Shell
  module Commands
    class IsInMaintenanceMode < Command
      def help
        <<-EOF
Is master in maintenance mode? For example:

  hbase> is_in_maintenance_mode
EOF
      end

      def command
        state = admin.in_maintenance_mode?
        formatter.row([state.to_s])
        state
      end
    end
  end
end