Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/20590#discussion_r167699657
--- 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 --
According to the reported case, the ORC file is opened here.
But, it seems that the task is killed, `TaskKilled (Stage cancelled)`,
before registering its listener during `initBatch`.
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