Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/15741#discussion_r86261739
--- Diff:
core/src/main/scala/org/apache/spark/util/collection/OpenHashSet.scala ---
@@ -42,10 +42,12 @@ import org.apache.spark.annotation.Private
*/
@Private
class OpenHashSet[@specialized(Long, Int) T: ClassTag](
- initialCapacity: Int,
+ var initialCapacity: Int,
--- End diff --
This looks really hacky and makes it a public variable. Why don't we just
change the require to >= 0, and then change nextPowerOf2 to pick a value that's
greater than 0?
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