老师，您好，我的hdfs shell的操作报错，如何处理呢？
来源：1-14 -HDFS shell常用操作
陈素素
2019-03-22
[hadoop@hadoop001 bin]$ hadoop fs -ls /
19/03/22 00:00:08 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
ls: Call From hadoop001/192.168.109.128 to hadoop001:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
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HDFS正常启动没
062019-03-22
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