Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/18537#discussion_r125831601
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/recommendation/ALSSuite.scala ---
@@ -777,7 +778,20 @@ class ALSSuite
}
}
-class ALSCleanerSuite extends SparkFunSuite {
+class ALSCleanerSuite extends SparkFunSuite with BeforeAndAfterEach {
+ override def beforeEach(): Unit = {
+ super.beforeEach()
+ // Once 'spark.local.dir' is set, it is cached. Unless this is
manually cleared
--- End diff --
Let's clarify this one a bit more. For example,
```
Once `Utils.getOrCreateLocalRootDirs` is called, it is cached in
`Utils.localRootDirs`.
Unless this is manually cleared before and after a test, it returns the
same directory
set before even if 'spark.local.dir' is configured afterwards.
```
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