[GitHub] [spark] shrprasa commented on a diff in pull request #37880: [SPARK-39399] [CORE] [K8S]: Fix proxy-user authentication for Spark on k8s in cluster deploy mode

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

shrprasa commented on code in PR #37880:
URL: https://github.com/apache/spark/pull/37880#discussion_r1036703611


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core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala:
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@@ -157,24 +157,32 @@ private[spark] class SparkSubmit extends Logging {
 
     def doRunMain(): Unit = {
       if (args.proxyUser != null) {
-        val proxyUser = UserGroupInformation.createProxyUser(args.proxyUser,
-          UserGroupInformation.getCurrentUser())
-        try {
-          proxyUser.doAs(new PrivilegedExceptionAction[Unit]() {
-            override def run(): Unit = {
-              runMain(args, uninitLog)
-            }
-          })
-        } catch {
-          case e: Exception =>
-            // Hadoop's AuthorizationException suppresses the exception's stack trace, which
-            // makes the message printed to the output by the JVM not very helpful. Instead,
-            // detect exceptions with empty stack traces here, and treat them differently.
-            if (e.getStackTrace().length == 0) {
-              error(s"ERROR: ${e.getClass().getName()}: ${e.getMessage()}")
-            } else {
-              throw e
-            }
+        val isKubernetesClusterModeDriver = args.master.startsWith("k8s") &&
+          args.deployMode.equals("client") &&

Review Comment:
   @holdenk Yes..thats right. I have added the comment.



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