import clob data in parquet format with scoop - sql

Question

I'm trying to importe clob data with scoop in parquet format here is my command line:
sshpass -p ${MDP_MAPR} ssh -n ${USR_MAPR}#${CNX_MAPR} sqoop import -Dmapred.job.queue.name=root.leasing.dev --connect ${CNX_DB} --username ${USR_DB} --password ${MDP_DB} --query "${query}" --delete-target-dir --target-dir ${DST_HDFS}/${SOURCE}_${table} --hive-overwrite --hive-import --hive-table ${SOURCE}_${table} --hive-database ${DST_HIVE} --hive-drop-import-delims -m 1 ${DRIVER_DB} --as-parquetfile >>${ficTrace} 2>&1
but it doesn't work and I can't find why, here is the log I get from it's execution:
Warning: /opt/mapr/sqoop/sqoop-1.4.6/bin/../../accumulo does not exist! Accumulo imports will fail.
Please set $ACCUMULO_HOME to the root of your Accumulo installation.
18/07/09 14:44:42 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6-mapr-1703
18/07/09 14:44:42 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
18/07/09 14:44:42 INFO tool.BaseSqoopTool: Using Hive-specific delimiters for output. You can override
18/07/09 14:44:42 INFO tool.BaseSqoopTool: delimiters with --fields-terminated-by, etc.
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/mapr/lib/slf4j-log4j12-1.7.12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/mapr/hive/hive-2.1/lib/log4j-slf4j-impl-2.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
18/07/09 14:44:43 INFO oracle.OraOopManagerFactory: Data Connector for Oracle and Hadoop is disabled.
18/07/09 14:44:43 INFO manager.SqlManager: Using default fetchSize of 1000
18/07/09 14:44:43 INFO tool.CodeGenTool: Beginning code generation
18/07/09 14:44:44 INFO manager.OracleManager: Time zone has been set to GMT
18/07/09 14:44:44 INFO manager.SqlManager: Executing SQL statement: select * from doe.DE_DECISIONS where (1 = 0)
18/07/09 14:44:44 INFO manager.SqlManager: Executing SQL statement: select * from doe.DE_DECISIONS where (1 = 0)
18/07/09 14:44:44 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /opt/mapr/hadoop/hadoop-2.7.0
Note: /tmp/sqoop-mapr/compile/2b49a98afbeb2ac1135adc84c66cf092/QueryResult.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
18/07/09 14:44:48 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-mapr/compile/2b49a98afbeb2ac1135adc84c66cf092/QueryResult.jar
18/07/09 14:44:53 INFO tool.ImportTool: Destination directory /app/list/datum/data/calf_hors_prod-cluster/datum/dev/leasing/tmp_sqoop/DE_DECISIONS is not present, hence not deleting.
18/07/09 14:44:53 INFO mapreduce.ImportJobBase: Beginning query import.
18/07/09 14:44:53 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar
18/07/09 14:44:53 INFO mapreduce.JobBase: Setting default value for hadoop.job.history.user.location=none
18/07/09 14:44:53 INFO manager.OracleManager: Time zone has been set to GMT
18/07/09 14:44:53 INFO manager.SqlManager: Executing SQL statement: select * from doe.DE_DECISIONS where (1 = 0)
18/07/09 14:44:53 INFO manager.SqlManager: Executing SQL statement: select * from doe.DE_DECISIONS where (1 = 0)
18/07/09 14:44:54 ERROR tool.ImportTool: Imported Failed: Cannot convert SQL type 2005
thank you for your help.

Answer 1

You can try adding this at the end of your Sqoop command:
--map-column-java <ORACLE_CLOB_COLUMN_NAME>=String
For example, if the Oracle table has a column named BODY of type CLOB, add this at the end:
--map-column-java BODY=String
This will provide guidance to Sqoop on Oracle CLOB type to Java type mapping.
If there are multiple columns, you can use this syntax pattern:
--map-column-java <ORACLE_CLOB_COLUMN_NAME_1>=String,<ORACLE_CLOB_COLUMN_NAME_2>=String