Github user Sephiroth-Lin commented on a diff in the pull request: https://github.com/apache/spark/pull/6409#discussion_r31500453 --- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala --- @@ -91,51 +91,54 @@ private[spark] class Client( * available in the alpha API. */ def submitApplication(): ApplicationId = { - var appId: ApplicationId = null + // Before we submit current application, we cleanup staging director as some old appStagingDir + // can not be deleted when those old jobs are failed or killed and so on, please see SPARK-7705 + // and SPARK-7503 for details. + cleanupStagingDir() + + // Setup the credentials before doing anything else, so we have don't have issues at any point. + setupCredentials() + yarnClient.init(yarnConf) + yarnClient.start() + + logInfo("Requesting a new application from cluster with %d NodeManagers" + .format(yarnClient.getYarnClusterMetrics.getNumNodeManagers)) + + // Get a new application from our RM + val newApp = yarnClient.createApplication() + val newAppResponse = newApp.getNewApplicationResponse() + val appId = newAppResponse.getApplicationId() + + // Verify whether the cluster has enough resources for our AM + verifyClusterResources(newAppResponse) + + // Set up the appropriate contexts to launch our AM + val containerContext = createContainerLaunchContext(newAppResponse) + val appContext = createApplicationSubmissionContext(newApp, containerContext) + + // Finally, submit and monitor the application + logInfo(s"Submitting application ${appId.getId} to ResourceManager") + yarnClient.submitApplication(appContext) + appId + } + + /** + * Cleanup all subdirectory of SPARK_STAGING directory. + */ + private def cleanupStagingDir(): Unit = { + val stagingDirPath = new Path(SPARK_STAGING) --- End diff -- I'm so sorry, thank you for point out my mistake.
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