mysqlfailover utility not ablt to connect

mysqlfailover tool not able to connect to myserver

mysqlfailover --master=test@localhost --discover-slaves-login=root --candidates=root@192.168.2.8:3306 WARNING: Using a password on the command line interface can be insecure. 2015-02-06 15:52:57 PM CRITICAL (u"Can't connect to MySQL server on 'localhost:3306' (-3 Temporary failure in name resolution)", 2003) ERROR: (u"Can't connect to MySQL server on 'localhost:3306' (-3 Temporary failure in name resolution)", 2003)