场景:
eclipse链接不上阿里云hadoop
解决:
将hadoop的配置文件中的ip改为内网IP即可将hadoop的配置文件中
阅读背景：
异常: Call From * 9000 failed on connection exception: java.net.ConnectException: Connection refused: no further information; For more details see: https://wiki.apache.org/hadoop/ConnectionRefused
来源：互联网
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