Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/17972#discussion_r118479868
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/tree/impl/RandomForestSuite.scala ---
@@ -199,7 +199,7 @@ class RandomForestSuite extends SparkFunSuite with
MLlibTestSparkContext {
withClue("DecisionTree requires number of features > 0," +
" but was given an empty features vector") {
intercept[IllegalArgumentException] {
- RandomForest.run(rdd, strategy, 1, "all", 42L, instr = None)
+ RandomForest.run(rdd, strategy, 1, "all", 42L, instr = None,
"MEMORY_AND_DISK")
--- End diff --
extract out the storage level `MEMORY_AND_DISK` into a `val` that can be
reused
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