Github user ArtRand commented on a diff in the pull request: https://github.com/apache/spark/pull/19390#discussion_r147066762 --- Diff: resource-managers/mesos/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosSchedulerUtils.scala --- @@ -175,17 +176,36 @@ trait MesosSchedulerUtils extends Logging { registerLatch.countDown() } - def createResource(name: String, amount: Double, role: Option[String] = None): Resource = { + private def isNotAnyRole(role: Option[String]): Boolean = { --- End diff -- I would prefer that this contains all of the logic below (if that's possible). For example: ```scala private def setAllocationAndReservationInfo(allocationInfo: Option[AllocationInfo], reservationInfo: Option[ReservationInfo], role: Option[String]) = { if (role.forall(r => !r.equals(ANY_ROLE)) { allocationInfo.foreach { alloc => builder.setAllocationInfo(alloc) } reservationInfo.foreach { res => builder.setReservation(res) } } } ```
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