Github user advancedxy commented on a diff in the pull request:
https://github.com/apache/spark/pull/21397#discussion_r189973566
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/python/ArrowPythonRunner.scala
---
@@ -94,8 +88,18 @@ class ArrowPythonRunner(
writer.writeBatch()
arrowWriter.reset()
}
- } {
writer.end()
--- End diff --
So basically your change makes sure that `root` and `allocator` is safely
closed in the final block and hence we don't need the safe belt in
`TaskCompletionListener`?
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