2.6.hbase-ruby.shell.commands.move_namespaces_rsgroup.rb Maven / Gradle / Ivy

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# Licensed to the Apache Software Foundation (ASF) under one
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# to you under the Apache License, Version 2.0 (the
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#
#     http://www.apache.org/licenses/LICENSE-2.0
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#

module Shell
  module Commands
    # Reassign tables of specified namespaces
    # from one RegionServer group to another.
    class MoveNamespacesRsgroup < Command
      def help
        <<~CMD

  Example:
  hbase> move_namespaces_rsgroup 'dest',['ns1','ns2']

CMD
      end

      def command(dest, namespaces)
        rsgroup_admin.move_namespaces(dest, namespaces)
        namespaces.each do |ns|
          arg = {'METHOD' => 'set', 'hbase.rsgroup.name' => dest}
          admin.alter_namespace(ns, arg)
        end
      end
    end
  end
end