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Posted to dev@sqoop.apache.org by "Venkat Ranganathan (JIRA)" <ji...@apache.org> on 2015/09/17 01:44:46 UTC
[jira] [Commented] (SQOOP-2387) Sqoop should support importing from
table with column names containing some special character
[ https://issues.apache.org/jira/browse/SQOOP-2387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14791316#comment-14791316 ]
Venkat Ranganathan commented on SQOOP-2387:
-------------------------------------------
Updated patch - Thanks [~jarcec] for catching this
> Sqoop should support importing from table with column names containing some special character
> ---------------------------------------------------------------------------------------------
>
> Key: SQOOP-2387
> URL: https://issues.apache.org/jira/browse/SQOOP-2387
> Project: Sqoop
> Issue Type: Bug
> Components: hive-integration
> Affects Versions: 1.4.5, 1.4.6
> Environment: HDP 2.2.0.0-2041
> Reporter: Pavel Benes
> Assignee: Venkat Ranganathan
> Priority: Critical
> Fix For: 1.4.7
>
> Attachments: SQOOP-2387.1.patch, SQOOP-2387.2.patch, SQOOP-2387.patch, SQOOP-2387.patch, joblog.txt, sqoop.log
>
>
> This sqoop import:
> {code}
> 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
> {code}
> fails with with this error:
> {code}
> 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)
> {code}
> 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.
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