org.apache.spark.SparkException: Task not serializable

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    org.apache.spark.SparkException: Task not serializable at org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:166) at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:158)

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    Root Cause Analysis

    1. org.apache.spark.SparkException

      Task not serializable

      at org.apache.spark.util.ClosureCleaner$.ensureSerializable()
    2. Spark
      ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean
      1. org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:298)
      2. org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
      2 frames