GitHub user dding3 opened a pull request:
https://github.com/apache/spark/pull/13328
[SPARK-15562][ML] Delete temp directory after program exit in
DataFrameExample
## What changes were proposed in this pull request?
Temp directory used to save records is not deleted after program exit in
DataFrameExample. Although it called deleteOnExit, it doesn't work as the
directory is not empty. Similar things happend in ContextCleanerSuite. Update
the code to make sure temp directory is deleted after program exit.
## How was this patch tested?
unit tests and local build.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dding3/spark master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13328.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 #13328
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