Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/3705#discussion_r22195734
--- Diff: core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala
---
@@ -452,6 +469,19 @@ private[spark] class Worker(
registerWithMaster()
}
+ private def maybeCleanupApplication(id: String): Unit = synchronized {
+ val shouldCleanup = finishedApps.contains(id) &&
!executors.values.exists(_.appId == id)
+ if (shouldCleanup) {
+ finishedApps -= id
+ appDirectories.remove(id).foreach {
+ logInfo(s"Cleaning up local directories for application $id")
+ _.foreach { dir =>
--- End diff --
Minor nit, but I think it would be clearer to introduce an `appDirectory`
variable in the outer `foreach` rather than using the underscore here.
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