Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/20590#discussion_r167700392 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcFileFormat.scala --- @@ -188,6 +188,9 @@ class OrcFileFormat if (enableVectorizedReader) { val batchReader = new OrcColumnarBatchReader( enableOffHeapColumnVector && taskContext.isDefined, copyToSpark, capacity) + val iter = new RecordReaderIterator(batchReader) + Option(TaskContext.get()).foreach(_.addTaskCompletionListener(_ => iter.close())) + batchReader.initialize(fileSplit, taskAttemptContext) --- End diff -- @cloud-fan and @gatorsmile . Could you take a look this? For ORC library, it looks okay when we call `close` correctly.
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