本文主要是介绍sqoop export时报错com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1.现象
sqoop导出到mysql时报错java.io.IOException: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column ‘goods_name’ at row 1 at
Error: java.io.IOException: Can't export data, please check failed map task logs at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:121) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:38) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146) at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:799) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168) Caused by: java.io.IOException: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'goods_name' at row 1 at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.write(AsyncSqlRecordWriter.java:233) at org.apache.sqoop.mapreduce.AsyncSqlRecordWriter.write(AsyncSqlRecordWriter.java:46) at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.write(MapTask.java:670) at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89) at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112) at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:89) ... 10 more Caused by: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'goods_name' at row 1 at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3974) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3912) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2486) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858) at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1197) at org.apache.sqoop.mapreduce.AsyncSqlOutputFormat$AsyncSqlExecThread.run(AsyncSqlOutputFormat.java:233)
2.原因
mysql表字段goods_name对应的列的长度小于hive的goods_name对应的列的长度，导致该错误。
3.解决方案
将goods_name 的长度有varchar（20）改为varchar（40）后恢复
这篇关于sqoop export时报错com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
