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via by Unknown author, 1 year ago
java.lang.ClassCastException: java.lang.Long cannot be cast to scala.Tuple2 at org.apache.spark.graphx.impl.RoutingTableMessageSerializer$$anon$1$$anon$2.writeObject(Serializers.scala:39) at at org.apache.spark.util.collection.ExternalSorter.spillToMergeableFile(ExternalSorter.scala:329)