Github user Sephiroth-Lin commented on a diff in the pull request:
https://github.com/apache/spark/pull/6409#discussion_r31490416
--- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala ---
@@ -825,6 +813,9 @@ private[spark] class Client(
* throw an appropriate SparkException.
*/
def run(): Unit = {
+ // Cleanup staging director as some appStagingDir can not be deleted
when job is failed or
+ // killed, please see SPARK-7705 for details.
+ cleanupStagingDir()
--- End diff --
1. Cleanup old application staging directory before submit current
application.
2. Yes, if called on run on yarn-client will not work, yarn-cluster is ok,
so called on submitApplication().
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