Github user GayathriMurali commented on the pull request:
https://github.com/apache/spark/pull/11140#issuecomment-184842753
@JoshRosen @zsxwing I am currently trying to fix a null pointer exception.
But on digging deeper, I see that there is no control over the daemon thread.
It could start removing file objects even before it is added to the queue and
there is no way to kill it.
https://commons.apache.org/proper/commons-io/apidocs/src-html/org/apache/commons/io/FileCleaningTracker.html
--- This implements a cleaner and more predictable Phantom Reference thread. I
can write up a document on what needs to be changed to incorporate something
like this, but can someone let me know if this approach would work.
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