Github user tnachen commented on a diff in the pull request:
https://github.com/apache/spark/pull/8771#discussion_r44691147
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -292,6 +286,18 @@ private[spark] class CoarseMesosSchedulerBackend(
}
+ def isOfferValidForScheduling(meetsConstraints: Boolean,
+ slaveId: String, mem: Double,
+ cpus: Int, sc: SparkContext): Boolean = {
+ taskIdToSlaveId.size < executorLimit &&
--- End diff --
Let's leave a TODO here that we want to abstract out each condition to have
a specific error message logged why a offer doesn't meet the requirement.
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