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From "Mauro Pirrone (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-5304) applySchema returns NullPointerException
Date Sun, 18 Jan 2015 00:26:34 GMT
Mauro Pirrone created SPARK-5304:
------------------------------------

             Summary: applySchema returns NullPointerException
                 Key: SPARK-5304
                 URL: https://issues.apache.org/jira/browse/SPARK-5304
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 1.2.0
            Reporter: Mauro Pirrone


The following code snippet returns NullPointerException:

val result = .....
      
val rows = result.take(10)
val rowRdd = SparkManager.getContext().parallelize(rows, 1)
val schemaRdd = SparkManager.getSQLContext().applySchema(rowRdd, result.schema)

java.lang.NullPointerException
	at org.apache.spark.sql.catalyst.expressions.AttributeReference.hashCode(namedExpressions.scala:147)
	at scala.runtime.ScalaRunTime$.hash(ScalaRunTime.scala:210)
	at scala.util.hashing.MurmurHash3.listHash(MurmurHash3.scala:168)
	at scala.util.hashing.MurmurHash3$.seqHash(MurmurHash3.scala:216)
	at scala.collection.LinearSeqLike$class.hashCode(LinearSeqLike.scala:53)
	at scala.collection.immutable.List.hashCode(List.scala:84)
	at scala.runtime.ScalaRunTime$.hash(ScalaRunTime.scala:210)
	at scala.util.hashing.MurmurHash3.productHash(MurmurHash3.scala:63)
	at scala.util.hashing.MurmurHash3$.productHash(MurmurHash3.scala:210)
	at scala.runtime.ScalaRunTime$._hashCode(ScalaRunTime.scala:172)
	at org.apache.spark.sql.execution.LogicalRDD.hashCode(ExistingRDD.scala:58)
	at scala.runtime.ScalaRunTime$.hash(ScalaRunTime.scala:210)
	at scala.collection.mutable.HashTable$HashUtils$class.elemHashCode(HashTable.scala:398)
	at scala.collection.mutable.HashMap.elemHashCode(HashMap.scala:39)
	at scala.collection.mutable.HashTable$class.findEntry(HashTable.scala:130)
	at scala.collection.mutable.HashMap.findEntry(HashMap.scala:39)
	at scala.collection.mutable.HashMap.get(HashMap.scala:69)
	at scala.collection.mutable.MapLike$class.getOrElseUpdate(MapLike.scala:187)
	at scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:91)
	at scala.collection.TraversableLike$$anonfun$groupBy$1.apply(TraversableLike.scala:329)
	at scala.collection.TraversableLike$$anonfun$groupBy$1.apply(TraversableLike.scala:327)
	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
	at scala.collection.TraversableLike$class.groupBy(TraversableLike.scala:327)
	at scala.collection.AbstractTraversable.groupBy(Traversable.scala:105)
	at org.apache.spark.sql.catalyst.analysis.NewRelationInstances$.apply(MultiInstanceRelation.scala:44)
	at org.apache.spark.sql.catalyst.analysis.NewRelationInstances$.apply(MultiInstanceRelation.scala:40)
	at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1$$anonfun$apply$2.apply(RuleExecutor.scala:61)
	at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1$$anonfun$apply$2.apply(RuleExecutor.scala:59)
	at scala.collection.IndexedSeqOptimized$class.foldl(IndexedSeqOptimized.scala:51)
	at scala.collection.IndexedSeqOptimized$class.foldLeft(IndexedSeqOptimized.scala:60)
	at scala.collection.mutable.WrappedArray.foldLeft(WrappedArray.scala:34)
	at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1.apply(RuleExecutor.scala:59)
	at org.apache.spark.sql.catalyst.rules.RuleExecutor$$anonfun$apply$1.apply(RuleExecutor.scala:51)
	at scala.collection.immutable.List.foreach(List.scala:318)
	at org.apache.spark.sql.catalyst.rules.RuleExecutor.apply(RuleExecutor.scala:51)
	at org.apache.spark.sql.SQLContext$QueryExecution.analyzed$lzycompute(SQLContext.scala:411)
	at org.apache.spark.sql.SQLContext$QueryExecution.analyzed(SQLContext.scala:411)
	at org.apache.spark.sql.SchemaRDD.schema$lzycompute(SchemaRDD.scala:135)
	at org.apache.spark.sql.SchemaRDD.schema(SchemaRDD.scala:135)



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