Sqoop Error: Error during export:Export job failed [How to Solve]

Sqoop:Error during export:Export job failed !
sqoop export data to mysql exception, usually are very normal today can not, there is nothing to report error information, is not very depressed.
21/08/25 15:03:05 ERROR tool.ExportTool: Error during export:
Export job failed!
at org.apache.sqoop.mapreduce.ExportJobBase.runExport(ExportJobBase.java:439)
at org.apache.sqoop.manager.SqlManager.exportTable(SqlManager.java:931)
at org.apache.sqoop.tool.ExportTool.exportTable(ExportTool.java:80)
at org.apache.sqoop.tool.ExportTool.run(ExportTool.java:99)
at org.apache.sqoop.Sqoop.run(Sqoop.java:147)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:183)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:234)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:243)
at org.apache.sqoop.Sqoop.main(Sqoop.java:252)

Several possibilities
1, conversion: the null problem requires conversion
–input-fields-terminated-by ‘\001’
–input-null-string ‘\N’
–input-null-non-string ‘\N’
2, table structure inconsistencies, hive table fields mysql table must have, mysql fields can be more not less
3, mysql table field length to less, change the structure on the good

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