windows客户端操作hdfs报错,连接失败

java.net.ConnectException: Call From DW12136/10.10.0.41 to hadoop102:8020 failed on connection exception: java.net.ConnectException: Connection refused: no further information; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.ja

windows客户端操作hdfs报错,连接失败最先出现在Python成神之路。