hadoop操做出现:9000 failed on connection exception: java.net.ConnectException:拒绝访问(已解决)

准备查看haddop上的文件,输入:java hadoop fs -ls / 出现了:node ls: Call From yx/127.0.1.1 to 0.0.0.0:9000 failed on connection exception: java.net.ConnectException: 拒绝链接; For more details see: http://wiki.apache.
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