[GitHub] [flink] wangyang0918 commented on a change in pull request #10010: [FLINK-10435][yarn]Client sporadically hangs after Ctrl + C

[GitBox <gi...@apache.org>]

wangyang0918 commented on a change in pull request #10010: [FLINK-10435][yarn]Client sporadically hangs after Ctrl + C
URL: https://github.com/apache/flink/pull/10010#discussion_r339440907
 
 

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 File path: flink-yarn/src/main/java/org/apache/flink/yarn/YarnClusterDescriptor.java
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 @@ -1526,16 +1525,22 @@ public YarnDeploymentException(String message, Throwable cause) {
 		private final YarnClientApplication yarnApplication;
 		private final Path yarnFilesDir;
 
-		DeploymentFailureHook(YarnClient yarnClient, YarnClientApplication yarnApplication, Path yarnFilesDir) {
-			this.yarnClient = Preconditions.checkNotNull(yarnClient);
+		DeploymentFailureHook(YarnClientApplication yarnApplication, Path yarnFilesDir) {
 			this.yarnApplication = Preconditions.checkNotNull(yarnApplication);
 			this.yarnFilesDir = Preconditions.checkNotNull(yarnFilesDir);
+
+			// A new yarn client need to be created in shutdown hook in order to avoid
+			// the yarn client has been closed by YarnClusterDescriptor.
+			this.yarnClient = YarnClient.createYarnClient();
+			this.yarnClient.init(yarnConfiguration);
 		}
 
 		@Override
 		public void run() {
 			LOG.info("Cancelling deployment from Deployment Failure Hook");
+			this.yarnClient.start();
 
 Review comment:
   Have updated.

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