[jira] [Created] (SPARK-18189) task not serializable with groupByKey() + mapGroups() + map

["Yang Yang (JIRA)" <ji...@apache.org>]

Yang Yang created SPARK-18189:
---------------------------------

             Summary: 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


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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