Github user sryza commented on a diff in the pull request:
https://github.com/apache/spark/pull/6394#discussion_r34214716
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/CoarseGrainedSchedulerBackend.scala
---
@@ -66,6 +66,12 @@ class CoarseGrainedSchedulerBackend(scheduler:
TaskSchedulerImpl, val rpcEnv: Rp
// Executors we have requested the cluster manager to kill that have not
died yet
private val executorsPendingToRemove = new HashSet[String]
+ // A map to store preferred locality with its required count
+ protected var preferredLocalityToCount: Map[String, Int] = Map.empty
+
+ // The number of pending tasks which is locality required
+ protected var localityAwarePendingTasks: Int = 0
--- End diff --
Don't need `: Int`
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