Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/4984#discussion_r33705062
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -286,4 +324,40 @@ private[spark] class CoarseMesosSchedulerBackend(
super.applicationId
}
+ override def doRequestTotalExecutors(requestedTotal: Int): Boolean = {
+ // We don't truly know if we can fulfill the full amount of executors
+ // since at coarse grain it depends on the amount of slaves available.
+ if (executorLimitOption.map(_ != requestedTotal).getOrElse(true)) {
+ logInfo("Capping the total amount of executors to " + requestedTotal)
+ }
+ executorLimitOption = Option(requestedTotal)
--- End diff --
this will always return `Some(int)` I think. You can just use `Some` here
so it's clearer at a glance. Same in L360
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