Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/15245#discussion_r80567995
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/RecordReaderIterator.scala
---
@@ -52,4 +55,18 @@ class RecordReaderIterator[T](rowReader: RecordReader[_,
T]) extends Iterator[T]
havePair = false
rowReader.getCurrentValue
}
+
+ override def close(): Unit = {
+ if (rowReader != null) {
+ try {
+ // Close the reader and release it. Note: it's very important that
we don't close the
--- End diff --
This comment is copied from `NewHadoopRdd`, which contains similar
defensive programming.
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