I am trying to import an Oracle table using below sqoop command. The column REPORT_XML_DATA is of the form BLOB. When trying to export the below query, I am getting Error: java.io.IOException: SQLException in nextKeyValue
Caused by: java.sql.SQLException: Invalid column type: getString not implemented for class oracle.jdbc.driver.T4CBlobAccessor
sqoop import --connect jdbc:oracle:thin:@xxxx:3000:ABCD --username TEST --password-file /user/test/mypassword.pwd --query "select REPORT_XML_DATA from mydb.table_name WHERE \$CONDITIONS" --map-column-java REPORT_XML_DATA=String --target-dir /user/test/sqoop/table_name --m 1 --hive-import --hive-table table_name --fields-terminated-by '\0174' --hive-drop-import-delims --null-string '\\N' --null-non-string '\\N'
Error:
17/07/30 11:17:07 INFO mapreduce.Job: Task Id : attempt_1501271060971_7271_m_000000_1, Status : FAILED
Error: java.io.IOException: SQLException in nextKeyValue
at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:277)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556)
at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
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:787)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:170)
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:1866)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:164)
Caused by: java.sql.SQLException: Invalid column type: getString not implemented for class oracle.jdbc.driver.T4CBlobAccessor
at oracle.jdbc.driver.Accessor.unimpl(Accessor.java:414)
at oracle.jdbc.driver.BlobAccessor.getString(BlobAccessor.java:335)
at oracle.jdbc.driver.OracleResultSetImpl.getString(OracleResultSetImpl.java:1297)
at org.apache.sqoop.lib.JdbcWritableBridge.readString(JdbcWritableBridge.java:71)
at com.cloudera.sqoop.lib.JdbcWritableBridge.readString(JdbcWritableBridge.java:61)
at QueryResult.readFields(QueryResult.java:90)
at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:244)
