Github user tone-zhang commented on the issue:
https://github.com/apache/spark/pull/14894
In Spark UT, the temporary data file should be stored in spark/target/tmp
not in spark/spark-warehouse. The Spark UT suite will clean up the path
spark/target/tmp when finish the test. It is the existing mechanism.
In some test cases, the property "spark.sql.warehouse.dir" of SQLConf is
not set, as default, the spark/spark-warehouse will be used to store the
temporary data file, it is in correct.
@srowen Thanks a lot for your comments. Could you please have a review?
Thanks!
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