【Hadoop】提交任務時 java.net.ConnectException: 拒絕鏈接

狀況描述 [2017/10/25 17:16:17] [WARN] org.apache.hadoop.ipc.Client$Connection.handleConnectionFailure(Client.java:913): Failed to connect to server: master/192.168.16.180:9000: try once and fail. java.net
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