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https://issues.apache.org/jira/browse/KYLIN-2493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shaofeng SHI updated KYLIN-2493:
--------------------------------
    Fix Version/s: v2.1.0

> BufferOverflowException in FactDistinctColumnsMapper when a value exceed 4096 
> bytes
> -----------------------------------------------------------------------------------
>
>                 Key: KYLIN-2493
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2493
>             Project: Kylin
>          Issue Type: Bug
>            Reporter: XIE FAN
>            Assignee: XIE FAN
>             Fix For: v2.1.0
>
>         Attachments: 
> 0001-KYLIN-2493-Auto-enlarge-buffer-in-FactDistinctColumn.patch
>
>
> error stack:
> Error: java.nio.BufferOverflowException at 
> java.nio.HeapByteBuffer.put(HeapByteBuffer.java:183) at 
> java.nio.ByteBuffer.put(ByteBuffer.java:832) at 
> org.apache.kylin.engine.mr.steps.FactDistinctColumnsMapper.doMap(FactDistinctColumnsMapper.java:157)
>  at org.apache.kylin.engine.mr.KylinMapper.map(KylinMapper.java:48) at 
> org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145) at 
> org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764) at 
> org.apache.hadoop.mapred.MapTask.run(MapTask.java:340) at 
> org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167) 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:1556)
>  at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)



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