Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/15405#discussion_r82671287
--- Diff: core/src/main/scala/org/apache/spark/deploy/master/Master.scala
---
@@ -637,6 +637,16 @@ private[deploy] class Master(
}
freeWorkers = freeWorkers.filter(canLaunchExecutor)
}
+
+ val numExecutorsScheduled = assignedExecutors.sum
+ val numExecutorsLaunched = app.executors.size
+ // Check to see if we managed to launch the requested number of
executors
+ if(numUsable != 0 && numExecutorsLaunched != app.executorLimit &&
+ numExecutorsScheduled != app.executorLimit) {
--- End diff --
Another thing is, how noisy is this? Do we log this if dynamic allocation
is turned on (we shouldn't)?
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