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https://issues.apache.org/jira/browse/KYLIN-5058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaoxiang Yu resolved KYLIN-5058.
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Resolution: Implemented
> Throws ConcurrentModificationException when building cube
> ---------------------------------------------------------
>
> Key: KYLIN-5058
> URL: https://issues.apache.org/jira/browse/KYLIN-5058
> Project: Kylin
> Issue Type: Bug
> Components: Spark Engine
> Affects Versions: v4.0.0-beta
> Reporter: Zhichao Zhang
> Assignee: Zhichao Zhang
> Priority: Minor
> Fix For: v4.0.2
>
>
> When building cubes, there is an error 'ConcurrentModificationException'
> thrown by Spark, but it does not impact the building job.
> This is a known issue and was fixed on Spark 3.1.2.
> https://issues.apache.org/jira/browse/SPARK-34731
> Fixed PR: [https://github.com/apache/spark/pull/31826]
> So It needs to upgrade Spark 3.X version to 3.1.2
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