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java.net.ConnectException:to0.0.0.0:10020failed:在DataNode节点中的Hive CLI中执行 select count(*) from table_name 查询时报错: java.io.IOException: java.net.ConnectException: Call From Slave7.Hadoop/192.168.8.207 to 0.0.0.0:10020 failed
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