java.util.NoSuchElementException

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tip

Check if the field you try to read really exists in the database. If it is optional, just use com.mongodb.casbah.commons.MongoDBObject#getAs


rp

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  • Explanations for JOINs
    via GitHub by okennedy
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  • a bug in bagOfWords
    via GitHub by breezer2020
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    • java.util.NoSuchElementException: key not found: 166 at scala.collection.MapLike$class.default(MapLike.scala:228) at scala.collection.AbstractMap.default(Map.scala:58) at scala.collection.MapLike$class.apply(MapLike.scala:141) at scala.collection.AbstractMap.apply(Map.scala:58) at org.apache.spark.mllib.clustering.BisectingKMeans$$anonfun$org$apache$spark$mllib$clustering$BisectingKMeans$$updateAssignments$1$$anonfun$2.apply$mcDJ$sp(BisectingKMeans.scala:338) at org.apache.spark.mllib.clustering.BisectingKMeans$$anonfun$org$apache$spark$mllib$clustering$BisectingKMeans$$updateAssignments$1$$anonfun$2.apply(BisectingKMeans.scala:337) at org.apache.spark.mllib.clustering.BisectingKMeans$$anonfun$org$apache$spark$mllib$clustering$BisectingKMeans$$updateAssignments$1$$anonfun$2.apply(BisectingKMeans.scala:337) at scala.collection.TraversableOnce$$anonfun$minBy$1.apply(TraversableOnce.scala:231) at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:111) at scala.collection.immutable.List.foldLeft(List.scala:84) at scala.collection.LinearSeqOptimized$class.reduceLeft(LinearSeqOptimized.scala:125) at scala.collection.immutable.List.reduceLeft(List.scala:84) at scala.collection.TraversableOnce$class.minBy(TraversableOnce.scala:231) at scala.collection.AbstractTraversable.minBy(Traversable.scala:105) at org.apache.spark.mllib.clustering.BisectingKMeans$$anonfun$org$apache$spark$mllib$clustering$BisectingKMeans$$updateAssignments$1.apply(BisectingKMeans.scala:337) at org.apache.spark.mllib.clustering.BisectingKMeans$$anonfun$org$apache$spark$mllib$clustering$BisectingKMeans$$updateAssignments$1.apply(BisectingKMeans.scala:334) at scala.collection.Iterator$$anon$11.next(Iterator.scala:328) at scala.collection.Iterator$$anon$14.hasNext(Iterator.scala:389)

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