法一: hive (stuchoosecourse) > insert overwrite local directory '/home/landen/文档/exportDir' > select * from hiddenipinfo;Total MapReduce jobs = 1Launching Job 1 out of 1Number of reduce tasks is set to 0 since there's…
1.原表没有设置主键,出现错误提示: ERROR tool.ImportTool: Error during import: No primary key could be found for table xxx. Please specify one with --split-by or perform a sequential import with '-m 1' 提示说明的很清楚:在表xxx没有发现主键,使用--split-by指定一个column作为拆分字段或者在命令行上添加 ‘-m 1…