'Help message.'

def _Help(self):

    print 'stop DCTB  DCTB  DCTB  DCTB Stop    manager.'
    print 'servers DCTB  DCTB  DCTB  DCTB Display    server    information.'
    print 'ranges DCTB  DCTB  DCTB  DCTB Display    server    range    information.'
    print 'rebalance DCTB  DCTB  DCTB Rebalance    server    load.'
    print 'recover    <transaction    id> DCTB Complete    a    pending    transaction.'
    print 'addserver    <address>    <port> DCTB Add    new    server    to    the    group.'
    print 'dropserver    <address>    <port> DCTB Move    all    the    data    from    the    server    to    others.'
    print 'remserver    <address>    <port> DCTB Remove    server    from    server    group.'
    print 'sync DCTB  DCTB  DCTB  DCTB Sync    server    information    between    data    servers.'
