eclipse鏈接Hadoop集羣時報錯Error：Call From xxx/xxx.xxx.xxx.xxx to hostname1:9000 failed on connection excep

　　今天用eclipse連接Hadoop集羣的時候突然給我報了這樣一個錯誤：Error：Call From xxx/xxx.xxx.xxx.xxx to hostname1:9000 failed on connection exception:java.net.ConnectException:Connection refused:no further information;...如下圖所示：

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