GitHub user wangjiaochun opened a pull request: https://github.com/apache/spark/pull/23225
[MINOR][CORE]Don't need to create an empty spill file when memory has no records ## What changes were proposed in this pull request? If there are no records in memory, then we don't need to create an empty temp spill file. ## How was this patch tested? Existing tests (Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests) (If this patch involves UI changes, please attach a screenshot; otherwise, remove this) 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/wangjiaochun/spark ShufflSorter Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/23225.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 #23225 ---- commit 6f9dcee39131429d9b40df45229149ffdde4fdbd Author: 10087686 <wang.jiaochun@...> Date: 2018-12-05T07:52:55Z "add if" ---- --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org