[SQOOP-2387] Sqoop should support importing from table with column names containing some special character

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.4.5, 1.4.6
• Fix Version/s: 1.4.7
• Component/s: hive-integration

Environment

HDP 2.2.0.0-2041

• Assignee: Venkat Ranganathan
• Reporter: Pavel Benes
• Created: 02/Jun/15 15:03
• Updated: 07/Dec/15 19:47
• Resolved: 28/Sep/15 17:37

Description

This sqoop import:

sqoop import --connect jdbc:mysql://some.merck.com:1234/dbname --username XXX --password YYY --table some_table --hcatalog-database some_database --hcatalog-table some_table --hive-partition-key mg_version --hive-partition-value 2015-05-28-13-18 -m 1 --verbose --fetch-size -2147483648

fails with with this error:

2015-06-01 13:20:39,209 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.NullPointerException
	at org.apache.hive.hcatalog.data.schema.HCatSchema.get(HCatSchema.java:105)
	at org.apache.sqoop.mapreduce.hcat.SqoopHCatImportHelper.convertToHCatRecord(SqoopHCatImportHelper.java:194)
	at org.apache.sqoop.mapreduce.hcat.SqoopHCatImportMapper.map(SqoopHCatImportMapper.java:52)
	at org.apache.sqoop.mapreduce.hcat.SqoopHCatImportMapper.map(SqoopHCatImportMapper.java:34)
	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)

It seems that the error is caused by a column name containing a hyphen ('-'). Column names are converted to java identifiers but later this converted name could not be found in HCatalog schema.

Issue Links

• links to: RB link