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Posted to issues@kylin.apache.org by "Shaofeng SHI (JIRA)" <ji...@apache.org> on 2016/11/04 02:21:58 UTC
[jira] [Resolved] (KYLIN-2154) source table rows will be skipped if
TOPN's group column contains NULL values
[ https://issues.apache.org/jira/browse/KYLIN-2154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shaofeng SHI resolved KYLIN-2154.
---------------------------------
Resolution: Fixed
> source table rows will be skipped if TOPN's group column contains NULL values
> -----------------------------------------------------------------------------
>
> Key: KYLIN-2154
> URL: https://issues.apache.org/jira/browse/KYLIN-2154
> Project: Kylin
> Issue Type: Bug
> Reporter: hongbin ma
> Assignee: hongbin ma
> Fix For: v1.6.0
>
>
> topn: group by country and order by sum(price)
> if the country column contains NULL values:
> 2016-11-02 20:23:22,478 ERROR [main] org.apache.kylin.engine.mr.steps.BaseCuboidMapperBase: Insane record: [20111209, \N, 1000122, 101, 9
> java.lang.NullPointerException
> at org.apache.kylin.common.util.Bytes.toBytes(Bytes.java:351)
> at org.apache.kylin.measure.topn.TopNMeasureType$1.valueOf(TopNMeasureType.java:145)
> at org.apache.kylin.measure.topn.TopNMeasureType$1.valueOf(TopNMeasureType.java:116)
> at org.apache.kylin.engine.mr.steps.BaseCuboidMapperBase.buildValueOf(BaseCuboidMapperBase.java:186)
> at org.apache.kylin.engine.mr.steps.BaseCuboidMapperBase.buildValue(BaseCuboidMapperBase.java:157)
> at org.apache.kylin.engine.mr.steps.BaseCuboidMapperBase.outputKV(BaseCuboidMapperBase.java:203)
> at org.apache.kylin.engine.mr.steps.HiveToBaseCuboidMapper.map(HiveToBaseCuboidMapper.java:52)
> 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)
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