Sqoop Export数据到本地数据库时出现错误,命令如下:
sqoop export --connect 'jdbc:mysql://202.193.60.117/dataweb?useUnicode=true&characterEncoding=utf-8' --username root --password-file /user/hadoop/.password --table user_info_copy --export-dir /user/hadoop/user_info --input-fields-terminated-by "@"
错误日志如下:
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:784) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by: java.lang.RuntimeException: Can't parse input data: '2,hello,456,0' at user_info_copy.__loadFromFields(user_info_copy.java:335) at user_info_copy.parse(user_info_copy.java:268) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:83) ... 10 more Caused by: java.lang.NumberFormatException: For input string: "2,hello,456,0" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.lang.Integer.valueOf(Integer.java:766) at user_info_copy.__loadFromFields(user_info_copy.java:317) ... 12 more
该错误的问题在于分隔符,因为您没有在配置单元表中指定分隔符,默认的配置单元分隔符是:
' 001'字段终止
' 002'的收藏品终止
' 003'终止的地图密钥
LINES终止于' n'
所以要解决问题,就需要更改配置单元创建或sqoop作业中的分隔符来解决问题。在本问题中,我的表示在本地通过界面化管理工具创建的,分隔符换成“,”就能解决问题了,若是其他分隔符则对应改变就行;或者,使用以下语句重新创建表格并指定分隔符来解决。
ROW FORMAT DELIMITED FIELDS TERMINATED BY '分隔符'
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