Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/900#discussion_r13808991
--- Diff:
yarn/common/src/main/scala/org/apache/spark/scheduler/cluster/YarnClientSchedulerBackend.scala
---
@@ -77,6 +77,12 @@ private[spark] class YarnClientSchedulerBackend(
logDebug("ClientArguments called with: " + argsArrayBuf)
val args = new ClientArguments(argsArrayBuf.toArray, conf)
+ totalExecutors.set(args.numExecutors)
--- End diff --
note that yarn has 2 modes - yarn-client and yarn-cluster mode. This
changes it for yarn-client mode, but not yarn-cluster mode. yarn-cluster mode
currently just uses CoarseGrainedSchedulerBackend directly.
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