Github user ajbozarth commented on a diff in the pull request:
https://github.com/apache/spark/pull/15248#discussion_r80795551
--- Diff:
core/src/main/scala/org/apache/spark/status/api/v1/ApiRootResource.scala ---
@@ -222,6 +222,7 @@ private[spark] object ApiRootResource {
private[spark] trait UIRoot {
def getSparkUI(appKey: String): Option[SparkUI]
def getApplicationInfoList: Iterator[ApplicationInfo]
+ def getApplicationInfoList(limit: Int): Iterator[ApplicationInfo]
--- End diff --
1. The null check occurs at the endpoint though so it doesn't affect this
function.
2. take(-1) and take(0) don't return the same thing, any negative input to
take returns the whole list, this was checked in my previous pr and it is the
default value in `historypage.js`
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