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https://issues.apache.org/jira/browse/SQOOP-1048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13661969#comment-13661969
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Jarek Jarcec Cecho commented on SQOOP-1048:
-------------------------------------------
I'm expecting that the proper format will be further defined by SQOOP-777 (once
fully implemented), however I'm +1 for immediate solution.
> Sqoop2: NPE when importing NULL value
> --------------------------------------
>
> Key: SQOOP-1048
> URL: https://issues.apache.org/jira/browse/SQOOP-1048
> Project: Sqoop
> Issue Type: Bug
> Affects Versions: 1.99.2
> Environment: Mysql DB
> Reporter: Vasanth kumar RJ
> Assignee: Vasanth kumar RJ
> Fix For: 1.99.3
>
> Attachments: SQOOP-1048.patch
>
>
> Throws NullPointerException when column value is NULL, since result set
> return null object.
> org.apache.sqoop.common.SqoopException: MAPRED_EXEC_0017:Error occurs during
> extractor run
> at org.apache.sqoop.job.mr.SqoopMapper.run(SqoopMapper.java:94)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
> at org.apache.hadoop.mapred.Child.main(Child.java:249)
> Caused by: org.apache.sqoop.common.SqoopException: MAPRED_EXEC_0013:Cannot
> write to the data writer
> at
> org.apache.sqoop.job.mr.SqoopMapper$MapDataWriter.writeContent(SqoopMapper.java:142)
> at
> org.apache.sqoop.job.mr.SqoopMapper$MapDataWriter.writeArrayRecord(SqoopMapper.java:124)
> at
> org.apache.sqoop.connector.jdbc.GenericJdbcImportExtractor.extract(GenericJdbcImportExtractor.java:60)
> at
> org.apache.sqoop.connector.jdbc.GenericJdbcImportExtractor.extract(GenericJdbcImportExtractor.java:31)
> at org.apache.sqoop.job.mr.SqoopMapper.run(SqoopMapper.java:89)
> ... 7 more
> Caused by: java.lang.NullPointerException
> at org.apache.sqoop.job.io.Data.hashCode(Data.java:140)
> at
> org.apache.hadoop.mapreduce.lib.partition.HashPartitioner.getPartition(HashPartitioner.java:29)
> at
> org.apache.hadoop.mapred.MapTask$NewOutputCollector.write(MapTask.java:691)
> at
> org.apache.hadoop.mapreduce.TaskInputOutputContext.write(TaskInputOutputContext.java:80)
> at
> org.apache.sqoop.job.mr.SqoopMapper$MapDataWriter.writeContent(SqoopMapper.java:140)
> ... 11 more
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