Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/4984#discussion_r33705725
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
---
@@ -59,9 +62,24 @@ private[spark] class CoarseMesosSchedulerBackend(
val slaveIdsWithExecutors = new HashSet[String]
- val taskIdToSlaveId = new HashMap[Int, String]
- val failuresBySlaveId = new HashMap[String, Int] // How many times tasks
on each slave failed
+ val taskIdToSlaveId: HashBiMap[Int, String] = HashBiMap.create[Int,
String]
+ // How many times tasks on each slave failed
+ val failuresBySlaveId: HashMap[String, Int] = new HashMap[String, Int]
+
+ // the total number of executors we aim to have
+ private[mesos] var executorLimitOption: Option[Int] = None
+
+ /**
+ * Return the current executor limit, which may be [[Int.MaxValue]]
+ * before properly initialized.
+ */
+ def executorLimit: Int = executorLimitOption.getOrElse(Int.MaxValue)
--- End diff --
I think this one can be `private[mesos]`
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