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https://issues.apache.org/jira/browse/SPARK-38088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michał Wieleba updated SPARK-38088:
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Attachment: image-2022-02-02-10-08-51-144.png
> Kryo DataWritingSparkTaskResult registration error
> --------------------------------------------------
>
> Key: SPARK-38088
> URL: https://issues.apache.org/jira/browse/SPARK-38088
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.1.2
> Reporter: Michał Wieleba
> Priority: Major
> Attachments: image-2022-02-02-10-08-51-144.png
>
>
> Spark 3.1.2, Scala 2.12
> I'm registering classes with _sparkConf.registerKryoClasses(Array( ..._
> method. Inside there are spark structured streaming code. Following settings
> are added as well:
> sparkConf.set("spark.serializer",
> "org.apache.spark.serializer.KryoSerializer")
> sparkConf.set("spark.kryo.registrationRequired", "true")
> Unfortunately, during execution following error is thrown:
> Caused by: java.lang.IllegalArgumentException: Class is not registered:
> org.apache.spark.sql.execution.datasources.v2.DataWritingSparkTaskResult
> Note: To register this class use:
> kryo.register(org.apache.spark.sql.execution.datasources.v2.DataWritingSparkTaskResult.class);
>
> As far as I can see in
> [https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/WriteToDataSourceV2Exec.scala]
>
> class
> org.apache.spark.sql.execution.datasources.v2.DataWritingSparkTaskResult is
> private (private[v2] case class DataWritingSparkTaskResult) therefore not
> available to register.
>
> !image-2022-02-02-10-06-32-342.png!
>
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