Github user jiangxb1987 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22001#discussion_r207833047
--- Diff:
resource-managers/mesos/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosFineGrainedSchedulerBackend.scala
---
@@ -453,4 +453,8 @@ private[spark] class MesosFineGrainedSchedulerBackend(
super.applicationId
}
+ override def getNumSlots(): Int = {
+ // TODO support this method for MesosFineGrainedSchedulerBackend
--- End diff --
Only `MesosFineGrainedSchedulerBackend` shall break, we still support
`MesosCoarseGrainedSchedulerBackend`
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