Eric Friedman created SPARK-3604:
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Summary: unbounded recursion in getNumPartitions triggers stack
overflow for large UnionRDD
Key: SPARK-3604
URL: https://issues.apache.org/jira/browse/SPARK-3604
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.1.0
Environment: linux. Used python, but error is in Scala land.
Reporter: Eric Friedman
Priority: Blocker
I have a large number of parquet files all with the same schema and attempted
to make a UnionRDD out of them.
When I call getNumPartitions(), I get a stack overflow error
that looks like this:
Py4JJavaError: An error occurred while calling o3275.partitions.
: java.lang.StackOverflowError
at
scala.collection.TraversableLike$class.builder$1(TraversableLike.scala:239)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:243)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at org.apache.spark.rdd.UnionRDD.getPartitions(UnionRDD.scala:65)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:202)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:202)
at org.apache.spark.rdd.UnionRDD$$anonfun$1.apply(UnionRDD.scala:65)
at org.apache.spark.rdd.UnionRDD$$anonfun$1.apply(UnionRDD.scala:65)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at org.apache.spark.rdd.UnionRDD.getPartitions(UnionRDD.scala:65)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:202)
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