[GitHub] [spark] kevins-29 commented on a change in pull request #35613: [SPARK-38273][SQL] Fix native memory leak in SparkPlan when spark.io.compression.codec=zstd

[GitBox <gi...@apache.org>]

kevins-29 commented on a change in pull request #35613:
URL: https://github.com/apache/spark/pull/35613#discussion_r812327795



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File path: sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlan.scala
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@@ -384,17 +385,34 @@ abstract class SparkPlan extends QueryPlan[SparkPlan] with Logging with Serializ
     val bis = new ByteArrayInputStream(bytes)
     val ins = new DataInputStream(codec.compressedInputStream(bis))
 
-    new Iterator[InternalRow] {
+    new NextIterator[InternalRow] {
+      private val taskContext: TaskContext = TaskContext.get()
+      if (taskContext != null) {
+        taskContext.addTaskCompletionListener[Unit] { _ => closeIfNeeded() }
+      }

Review comment:
       The `closeIfNeeded()` method is a member of NextIterator.




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