org.apache.spark.SparkException: Task not serializable

Stack Overflow | aletapool | 1 month ago
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    Root Cause Analysis

    1. org.apache.spark.SparkException

      Task not serializable

      at org.apache.spark.util.ClosureCleaner$.ensureSerializable()
    2. Spark
      AbstractJavaRDDLike.map
      1. org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:298)
      2. org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
      3. org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
      4. org.apache.spark.SparkContext.clean(SparkContext.scala:2039)
      5. org.apache.spark.rdd.RDD$$anonfun$map$1.apply(RDD.scala:366)
      6. org.apache.spark.rdd.RDD$$anonfun$map$1.apply(RDD.scala:365)
      7. org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
      8. org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
      9. org.apache.spark.rdd.RDD.withScope(RDD.scala:358)
      10. org.apache.spark.rdd.RDD.map(RDD.scala:365)
      11. org.apache.spark.api.java.JavaRDDLike$class.map(JavaRDDLike.scala:92)
      12. org.apache.spark.api.java.AbstractJavaRDDLike.map(JavaRDDLike.scala:45)
      12 frames
    3. topicmodeling
      TopicModelingTest.testTFIDF
      1. topicmodeling.TopicModelingTest.testTFIDF(TopicModelingTest.java:188)
      1 frame
    4. Java RT
      NativeMethodAccessorImpl.invoke0
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      1 frame