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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/07/04 21:40:00 UTC
[jira] [Commented] (SPARK-36009) Missing GraphX classes in
registerKryoClasses util method
[ https://issues.apache.org/jira/browse/SPARK-36009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17374409#comment-17374409 ]
Apache Spark commented on SPARK-36009:
--------------------------------------
User 'matthewrj' has created a pull request for this issue:
https://github.com/apache/spark/pull/32973
> Missing GraphX classes in registerKryoClasses util method
> ---------------------------------------------------------
>
> Key: SPARK-36009
> URL: https://issues.apache.org/jira/browse/SPARK-36009
> Project: Spark
> Issue Type: Bug
> Components: GraphX
> Affects Versions: 3.1.2
> Reporter: Matthew
> Priority: Minor
>
> {{VertexRDDImpl}} uses an {{RDD[ShippableVertexPartition[VD]]}} however, {{GraphXUtils.registerKryoClasses}} does not register {{ShippableVertexPartition}}. This means when running with {{spark.kryo.registrationRequired}} set to {{true}}, we get a "Class is not registered" exception. This is an issue as it prevents other unregistered classes from being discovered using {{spark.kryo.registrationRequired}} as the first unregistered class found halts the whole job. It also potentially decreases the serialised size of the RDD when using Kryo.
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