Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/4168#discussion_r24381075
--- Diff:
core/src/main/scala/org/apache/spark/ExecutorAllocationClient.scala ---
@@ -23,12 +23,19 @@ package org.apache.spark
private[spark] trait ExecutorAllocationClient {
/**
- * Request an additional number of executors from the cluster manager.
- * Return whether the request is acknowledged by the cluster manager.
+ * Express a preference to the cluster manager for a given total number
of executors. This can
+ * result in canceling pending requests or filing additional requests.
*/
- def requestExecutors(numAdditionalExecutors: Int): Boolean
+ def requestTotalExecutors(numExecutors: Int): Boolean
/**
+ * Request an additional number of executors from the cluster manager.
+ * This is currently only supported in Yarn mode. Return whether the
request is received.
--- End diff --
YARN?
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