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https://issues.apache.org/jira/browse/SPARK-24809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li resolved SPARK-24809.
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Resolution: Fixed
Fix Version/s: 2.4.0
2.3.2
2.2.3
2.1.4
> Serializing LongHashedRelation in executor may result in data error
> -------------------------------------------------------------------
>
> Key: SPARK-24809
> URL: https://issues.apache.org/jira/browse/SPARK-24809
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0, 2.1.0, 2.2.0, 2.3.0
> Environment: Spark 2.2.1
> hadoop 2.7.1
> Reporter: Lijia Liu
> Priority: Critical
> Labels: correctness
> Fix For: 2.1.4, 2.2.3, 2.3.2, 2.4.0
>
> Attachments: Spark LongHashedRelation serialization.svg
>
>
> When join key is long or int in broadcast join, Spark will use
> LongHashedRelation as the broadcast value. Details see SPARK-14419. But, if
> the broadcast value is abnormal big, executor will serialize it to disk. But,
> data will lost when serializing.
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