Map/Reduce Locations集群不上hadoop
集群全打开了也没有用
Error: Call From LAPTOP-NTO63LLV/10.10.1.1 to DESKTOP-QM7ITNQ:9000 failed on connection exception: java.net.ConnectException: Connection refused: no further information;
Connection refused拒绝连接，查看端口是否准确，防火墙是否关闭。