vernedeng commented on code in PR #8588:
URL: https://github.com/apache/inlong/pull/8588#discussion_r1277126612


##########
inlong-manager/manager-service/src/main/java/org/apache/inlong/manager/service/resource/queue/kafka/KafkaOperator.java:
##########
@@ -79,4 +109,70 @@ public boolean topicIsExists(KafkaClusterInfo 
kafkaClusterInfo, String topic)
         return topicList.contains(topic);
     }
 
+    public List<BriefMQMessage> queryLatestMessage(KafkaClusterInfo 
kafkaClusterInfo, String topicName,
+            Integer messageCount, InlongStreamInfo streamInfo) {
+        LOGGER.info("begin to query message for topic {} in cluster: {}", 
topicName, kafkaClusterInfo);
+
+        Properties properties = new Properties();
+        properties.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, 
kafkaClusterInfo.getUrl());
+        properties.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, 
ByteArrayDeserializer.class.getName());
+        properties.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, 
ByteArrayDeserializer.class.getName());
+        properties.put(ConsumerConfig.GROUP_ID_CONFIG, "QueryLatestMessage-" + 
Utils.getUUID());

Review Comment:
   It's better to use the same subscription and reset the offset of the target 
topic to the latest for each query.



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