Github user CodingCat commented on a diff in the pull request:
https://github.com/apache/spark/pull/7532#discussion_r35173556
--- Diff:
core/src/main/scala/org/apache/spark/deploy/client/AppClient.scala ---
@@ -256,4 +272,33 @@ private[spark] class AppClient(
endpoint = null
}
}
+
+ /**
+ * Request executors from the Master by specifying the total number
desired,
+ * including existing pending and running executors.
+ *
+ * @return whether the request is acknowledged.
+ */
+ def requestTotalExecutors(requestedTotal: Int): Boolean = {
--- End diff --
is it necessary to validate the value of `requestedTotal`, like `>= 0`?
though negative numbers does not bring any impact on the correctness of the
program (if I understand code correctly)
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