Github user tgravescs commented on a diff in the pull request: https://github.com/apache/spark/pull/14710#discussion_r76788546 --- Diff: core/src/main/scala/org/apache/spark/scheduler/cluster/CoarseGrainedSchedulerBackend.scala --- @@ -478,19 +487,24 @@ class CoarseGrainedSchedulerBackend(scheduler: TaskSchedulerImpl, val rpcEnv: Rp numExecutors: Int, localityAwareTasks: Int, hostToLocalTaskCount: Map[String, Int] - ): Boolean = synchronized { + ): Boolean = { if (numExecutors < 0) { throw new IllegalArgumentException( "Attempted to request a negative number of executor(s) " + s"$numExecutors from the cluster manager. Please specify a positive number!") } - this.localityAwareTasks = localityAwareTasks - this.hostToLocalTaskCount = hostToLocalTaskCount + val response = synchronized { + this.localityAwareTasks = localityAwareTasks + this.hostToLocalTaskCount = hostToLocalTaskCount + + numPendingExecutors = --- End diff -- I guess I'll have to go look at the new implementation, can you clarify why ask would be better?
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