vanzin commented on a change in pull request #25760: [SPARK-29054][SS] 
Invalidate Kafka consumer when new delegation token available
URL: https://github.com/apache/spark/pull/25760#discussion_r328382970
 
 

 ##########
 File path: 
external/kafka-0-10-token-provider/src/main/scala/org/apache/spark/kafka010/KafkaTokenUtil.scala
 ##########
 @@ -288,4 +288,18 @@ private[spark] object KafkaTokenUtil extends Logging {
 
     params
   }
+
+  def isConnectorUsingCurrentToken(params: ju.Map[String, Object]): Boolean = {
+    if (params.containsKey(SaslConfigs.SASL_JAAS_CONFIG)) {
+      logDebug("Delegation token used by cached connector, checking if uses 
the latest token.")
 
 Review comment:
   Mentioning "cached connector" here is a little weird since this class isn't 
really related to caching...

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