bowenliang123 commented on code in PR #5182:
URL: https://github.com/apache/kyuubi/pull/5182#discussion_r1299893153


##########
kyuubi-server/src/main/scala/org/apache/kyuubi/session/KyuubiSessionManager.scala:
##########
@@ -361,13 +368,29 @@ class KyuubiSessionManager private (name: String) extends 
SessionManager(name) {
     batchLimiter.foreach(SessionLimiter.resetUnlimitedUsers(_, unlimitedUsers))
   }
 
+  private[kyuubi] def getLimitedUsers: Set[String] = {
+    
limiter.orElse(batchLimiter).map(SessionLimiter.getLimitedUsers).getOrElse(Set.empty)
+  }
+
+  private[kyuubi] def refreshLimitedUsers(conf: KyuubiConf): Unit = {
+    val limitedUsers = 
conf.get(SERVER_LIMIT_CONNECTIONS_USER_LIMITED_LIST).toSet

Review Comment:
   The user list should be filtered ensuring non-empty elements.



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