[
https://issues.apache.org/jira/browse/SQOOP-352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113622#comment-13113622
]
Tom White commented on SQOOP-352:
---------------------------------
MySQL YEAR is mapped to java.sql.Date when importing to HDFS. On the way back
an exception is thrown because the date and month fields are truncated (not
used) - this is the MySQL behaviour (see e.g.
http://comments.gmane.org/gmane.comp.db.mysql.java/5187).
It's possible to get the MySQL JDBC connector to represent a YEAR as a short by
setting yearIsDateType to false, by setting the property in the JDBC URL:
http://dev.mysql.md/doc/refman/5.0/en/connector-j-reference-configuration-properties.html.
I haven't tried this.
Another workaround is to declare the field as DATE (at least in the table being
exported into).
> Export of avro data imported from database table (using sqoop import) fails
> on year
> -----------------------------------------------------------------------------------
>
> Key: SQOOP-352
> URL: https://issues.apache.org/jira/browse/SQOOP-352
> Project: Sqoop
> Issue Type: Bug
> Components: connectors/mysql
> Reporter: Tom White
>
> Report from Wing Yew Poon:
> I use a MySQL database for testing sqoop. I created a table with a
> representative collection of data types for the columns, excluding blob and
> text (and their different-sized variants).
> I run sqoop import --as-avrodatafile to import the table into hdfs.
> I create a second table with the same schema, and run sqoop export to export
> the avro data to this second table. The export fails with
> {noformat}
> java.io.IOException: java.sql.SQLException: Data truncated for column 'yyyy'
> at row 1
> at
> com.cloudera.sqoop.mapreduce.AsyncSqlRecordWriter.close(AsyncSqlRecordWriter.java:180)
> at
> org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.close(MapTask.java:540)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:649)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
> at org.apache.hadoop.mapred.Child.main(Child.java:264)
> Caused by: java.sql.SQLException: Data truncated for column 'yyyy' at row 1
> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3558)
> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3490)
> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2109)
> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2648)
> at
> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2077)
> at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1356)
> at
> com.cloudera.sqoop.mapreduce.AsyncSqlOutputFormat$AsyncSqlExecThread.run(AsyncSqlOutputFormat.java:232)
> {noformat}
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
