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https://issues.apache.org/jira/browse/SPARK-18189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-18189:
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Assignee: Apache Spark
> task not serializable with groupByKey() + mapGroups() + map
> -----------------------------------------------------------
>
> Key: SPARK-18189
> URL: https://issues.apache.org/jira/browse/SPARK-18189
> Project: Spark
> Issue Type: Bug
> Reporter: Yang Yang
> Assignee: Apache Spark
>
> just run the following code
> val a = spark.createDataFrame(sc.parallelize(Seq((1,2),(3,4)))).as[(Int,Int)]
> val grouped = a.groupByKey({x:(Int,Int)=>x._1})
> val mappedGroups = grouped.mapGroups((k,x)=>{(k,1)})
> val yyy = sc.broadcast(1)
> val last = mappedGroups.rdd.map(xx=>{
> val simpley = yyy.value
>
> 1
> })
> spark says Task not serializable
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