GitHub user zuotingbing opened a pull request:
https://github.com/apache/spark/pull/20864
[SPARK-23745][SQL]Remove the directories of the
âhive.downloaded.resources.dirâ when HiveThriftServer2 stopped
## What changes were proposed in this pull request?

when start the HiveThriftServer2, we create some directories for
hive.downloaded.resources.dir, but when stop the HiveThriftServer2 we do not
remove these directories.The directories could accumulate a lot.
## How was this patch tested?
manual tests
Please review http://spark.apache.org/contributing.html before opening a
pull request.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zuotingbing/spark SPARK-23745
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20864.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #20864
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