Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/7532#discussion_r35017480
--- Diff:
core/src/main/scala/org/apache/spark/deploy/master/ApplicationInfo.scala ---
@@ -43,6 +42,18 @@ private[spark] class ApplicationInfo(
@transient var endTime: Long = _
@transient var appSource: ApplicationSource = _
+ // A cap on the number of executors this application can have at any
given time.
+ // By default, this is infinite. Only after the first allocation request
is issued
+ // by the application will this be set to a finite value.
+ @transient var executorLimit: Int = _
+
+ // A set of workers on which this application cannot launch executors.
+ // This is used to handle kill requests when `spark.executor.cores` is
NOT set. In this mode,
+ // at most one executor from this application can be run on each worker.
When an executor is
+ // killed, its worker is added to the blacklist to avoid having the
master immediately schedule
+ // a new executor on the worker.
+ @transient var blacklistedWorkers: mutable.HashSet[String] = _
--- End diff --
I think it needs to be a var because we mark it transient, but yes I
believe this can be `private[master]`
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