使用sqoop从hive导出数据到mysql发生如下错误： sqoop export –connect jdbc:mysql://192.168.38.64:3306/test –username root -P –table mytable –input-null-string ‘\N’ –export-dir /user/hive/warehouse/test.db/mytable
Error: java.io.IOException: Can't export data, please check failed map task logs at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:112) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:39) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145) at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) Caused by: java.lang.RuntimeException: Can't parse input data: '1kevin17' at mytable.__loadFromFields(mytable.java:292) at mytable.parse(mytable.java:230) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83) ... 10 more Caused by: java.lang.NumberFormatException: For input string: "1kevin17" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:492) at java.lang.Integer.valueOf(Integer.java:582) at mytable.__loadFromFields(mytable.java:279) ... 12 mor
这是因为 没有指定null字段分隔符，导致错位。
sqoop export –connect jdbc:mysql://192.168.38.64:3306/test –username root -P –table mytable –input-null-string ‘\N’ –input-null-non-string ‘\N’ –input-fields-terminated-by ‘\001’ –export-dir /user/hive/warehouse/test.db/mytable
测试成功。
