diff --git a/eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/consumer/SubscriptionManager.java b/eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/consumer/SubscriptionManager.java
index 2b03eac4b7..4cfecd0859 100644
--- a/eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/consumer/SubscriptionManager.java
+++ b/eventmesh-runtime/src/main/java/org/apache/eventmesh/runtime/core/consumer/SubscriptionManager.java
@@ -114,30 +114,19 @@ public void updateSubscription(ClientInfo clientInfo, String consumerGroup,
                 if (CollectionUtils.isEmpty(groupTopicClients)) {
                     log.error("group {} topic {} clients is empty", consumerGroup, subscription);
                 }
+                ConsumerGroupConf consumerGroupConf = localConsumerGroupMapping.computeIfAbsent(consumerGroup, (consumerGroupInner) ->
+                    new ConsumerGroupConf(consumerGroup)
+                );
 
-                ConsumerGroupConf consumerGroupConf = localConsumerGroupMapping.get(consumerGroup);
-                if (consumerGroupConf == null) {
-                    // new subscription
-                    ConsumerGroupConf prev = localConsumerGroupMapping.putIfAbsent(consumerGroup, new ConsumerGroupConf(consumerGroup));
-                    if (prev == null) {
-                        log.info("add new subscription, consumer group: {}", consumerGroup);
-                    }
-                    consumerGroupConf = localConsumerGroupMapping.get(consumerGroup);
-                }
-
-                ConsumerGroupTopicConf consumerGroupTopicConf = consumerGroupConf.getConsumerGroupTopicConf()
-                    .get(subscription.getTopic());
-                if (consumerGroupTopicConf == null) {
-                    consumerGroupConf.getConsumerGroupTopicConf().computeIfAbsent(subscription.getTopic(), (topic) -> {
+                ConsumerGroupTopicConf consumerGroupTopicConf =
+                    consumerGroupConf.getConsumerGroupTopicConf().computeIfAbsent(subscription.getTopic(), (topicInner) -> {
                         ConsumerGroupTopicConf newTopicConf = new ConsumerGroupTopicConf();
                         newTopicConf.setConsumerGroup(consumerGroup);
-                        newTopicConf.setTopic(topic);
+                        newTopicConf.setTopic(topicInner);
                         newTopicConf.setSubscriptionItem(subscription);
                         log.info("add new {}", newTopicConf);
                         return newTopicConf;
                     });
-                    consumerGroupTopicConf = consumerGroupConf.getConsumerGroupTopicConf().get(subscription.getTopic());
-                }
 
                 consumerGroupTopicConf.getUrls().add(url);
                 if (!consumerGroupTopicConf.getIdcUrls().containsKey(clientInfo.getIdc())) {