yaooqinn commented on a change in pull request #1892:
URL: https://github.com/apache/incubator-kyuubi/pull/1892#discussion_r804423520



##########
File path: 
kyuubi-server/src/main/scala/org/apache/kyuubi/session/KyuubiSessionImpl.scala
##########
@@ -45,11 +50,30 @@ class KyuubiSessionImpl(
   extends AbstractSession(protocol, user, password, ipAddress, conf, 
sessionManager) {
   override val handle: SessionHandle = SessionHandle(protocol)
 
-  // TODO: needs improve the hardcode
-  normalizedConf.foreach {
-    case ("use:database", _) =>
-    case ("kyuubi.engine.pool.size.threshold", _) =>
-    case (key, value) => sessionConf.set(key, value)
+  override val normalizedConf: Map[String, String] = {
+    val userSpecifiedConf = new util.HashMap[String, String]()
+    // TODO: needs improve the hardcode
+    super.normalizedConf.foreach {
+      case ("use:database", _) =>
+      case ("kyuubi.engine.pool.size.threshold", _) =>
+      case (key, value) =>
+        sessionConf.set(key, value)
+        userSpecifiedConf.put(key, value)
+    }
+
+    val sessionConfMap = ImmutableMap.copyOf[String, 
String](sessionConf.getAll.asJava)
+    val confOverlay = sessionManager.sessionConfAdvisor.getConfOverlay(
+      user,
+      sessionConfMap)
+    if (confOverlay != null) {
+      confOverlay.asScala.foreach {
+        case (key, value) =>
+          sessionConf.set(key, value)
+          userSpecifiedConf.put(key, value)
+      }
+    }
+
+    userSpecifiedConf.asScala.toMap

Review comment:
       simply add ?
   
   ```scala
   private[kyuubi] val optimizedConf: Map[String, String] = {
       val confOverlay = sessionManager.sessionConfAdvisor.getConfSuggestion(
         user,
         normalizedConf.asJava)
       normalizedConf ++ confOverlay.asScala
     }
   ```




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