[
https://issues.apache.org/jira/browse/SPARK-7483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906221#comment-14906221
]
simon.lou commented on SPARK-7483:
----------------------------------
kyro not support ListBuffer because ListBuffer don't have any "zero argument
constructor".
refer to :
https://github.com/EsotericSoftware/kryo#using-standard-java-serialization
"By default, if a class has a zero argument constructor then it is invoked via
ReflectASM or reflection, otherwise an exception is thrown. "
Is that the reason?
When using kyro , use ArrayBuffer instead of ListBuffer
> [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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
