[GitHub] [spark] Ngone51 commented on a change in pull request #27773: [SPARK-29154][CORE] Update Spark scheduler for stage level scheduling

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Ngone51 commented on a change in pull request #27773: [SPARK-29154][CORE] Update Spark scheduler for stage level scheduling
URL: https://github.com/apache/spark/pull/27773#discussion_r389496401
 
 

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 File path: core/src/main/scala/org/apache/spark/SparkContext.scala
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 @@ -1617,13 +1617,17 @@ class SparkContext(config: SparkConf) extends Logging {
   }
 
   /**
-   * Get the max number of tasks that can be concurrent launched currently.
+   * Get the max number of tasks that can be concurrent launched based on the ResourceProfile
+   * being used.
    * Note that please don't cache the value returned by this method, because the number can change
    * due to add/remove executors.
    *
+   * @param rp ResourceProfile which to use to calculate max concurrent tasks.
    * @return The max number of tasks that can be concurrent launched currently.
    */
-  private[spark] def maxNumConcurrentTasks(): Int = schedulerBackend.maxNumConcurrentTasks()
+  private[spark] def maxNumConcurrentTasks(rp: ResourceProfile): Int = {
 
 Review comment:
   Give a default value(e.g. default ResourceProfile) for `rp`? So caller/developer who isn't aware of `ResourceProfile` doesn't need to care about it.

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