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https://issues.apache.org/jira/browse/SPARK-7483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15129631#comment-15129631
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Apache Spark commented on SPARK-7483:
-------------------------------------
User 'mark800' has created a pull request for this issue:
https://github.com/apache/spark/pull/11041
> [MLLib] Using Kryo with FPGrowth fails with an exception
> --------------------------------------------------------
>
> Key: SPARK-7483
> URL: https://issues.apache.org/jira/browse/SPARK-7483
> Project: Spark
> Issue Type: Bug
> Components: MLlib
> Affects Versions: 1.3.1
> Reporter: Tomasz Bartczak
> Priority: Minor
>
> When using FPGrowth algorithm with KryoSerializer - Spark fails with
> {code}
> Job aborted due to stage failure: Task 0 in stage 9.0 failed 1 times, most
> recent failure: Lost task 0.0 in stage 9.0 (TID 16, localhost):
> com.esotericsoftware.kryo.KryoException: java.lang.IllegalArgumentException:
> Can not set final scala.collection.mutable.ListBuffer field
> org.apache.spark.mllib.fpm.FPTree$Summary.nodes to
> scala.collection.mutable.ArrayBuffer
> Serialization trace:
> nodes (org.apache.spark.mllib.fpm.FPTree$Summary)
> org$apache$spark$mllib$fpm$FPTree$$summaries
> (org.apache.spark.mllib.fpm.FPTree)
> {code}
> This can be easily reproduced in spark codebase by setting
> {code}
> conf.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
> {code} and running FPGrowthSuite.
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