Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/1360#discussion_r17250396
--- Diff: core/src/main/scala/org/apache/spark/deploy/master/Master.scala
---
@@ -295,28 +295,34 @@ private[spark] class Master(
val execOption = idToApp.get(appId).flatMap(app =>
app.executors.get(execId))
execOption match {
case Some(exec) => {
+ val appInfo = idToApp(appId)
--- End diff --
This will crash if `idToApp` doesn't already contain `appId`. Maybe we
should log a warning instead of throwing a key not found exception.
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