diff --git a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/ConsumerService.java b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/ConsumerService.java
index 3eab40b8..07c92bc6 100644
--- a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/ConsumerService.java
+++ b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/ConsumerService.java
@@ -42,6 +42,13 @@ public interface ConsumerService {
      */
     List<String> getConsumerGroupConsumedTopicList(Long clusterId, String consumerGroup, String location);
 
+    /**
+     * 获取消费者offset
+     * @param clusterDO 集群
+     * @param topicName topic
+     * @param consumerGroup 消费组
+     * @return Map<partitionId, offset>
+     */
     Map<Integer, Long> getConsumerOffset(ClusterDO clusterDO, String topicName, ConsumerGroup consumerGroup);
 
     /**
@@ -52,7 +59,20 @@ public interface ConsumerService {
                                      ConsumerGroup consumerGroup,
                                      List<PartitionOffsetDTO> partitionOffsetDTOList);
 
+    /**
+     * 获取每个集群消费组的个数
+     * @param clusterDOList 物理集群列表
+     * @return Map<clusterId, consumerGroupNums>
+     */
     Map<Long, Integer> getConsumerGroupNumMap(List<ClusterDO> clusterDOList);
 
+    /**
+     * 验证消费组是否存在
+     * @param offsetLocation offset存放位置
+     * @param id 集群id
+     * @param topicName topic
+     * @param consumerGroup 消费组
+     * @return true:存在，false:不存在
+     */
     boolean checkConsumerGroupExist(OffsetLocationEnum offsetLocation, Long id, String topicName, String consumerGroup);
 }
diff --git a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/ConsumerServiceImpl.java b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/ConsumerServiceImpl.java
index 913316ef..e59aa2bc 100644
--- a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/ConsumerServiceImpl.java
+++ b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/ConsumerServiceImpl.java
@@ -159,7 +159,7 @@ public class ConsumerServiceImpl implements ConsumerService {
         if (topicMetadata == null) {
             logger.warn("class=ConsumerServiceImpl||method=getConsumeDetail||clusterId={}||topicName={}||msg=topicMetadata is null!",
                     clusterDO.getId(), topicName);
-            return null;
+            return Collections.emptyList();
         }
 
         List<ConsumeDetailDTO> consumerGroupDetailDTOList = null;
@@ -170,7 +170,7 @@ public class ConsumerServiceImpl implements ConsumerService {
         }
         if (consumerGroupDetailDTOList == null) {
             logger.info("class=ConsumerServiceImpl||method=getConsumeDetail||msg=consumerGroupDetailDTOList is null!");
-            return null;
+            return Collections.emptyList();
         }
 
         Map<TopicPartition, Long> topicPartitionLongMap = topicService.getPartitionOffset(clusterDO, topicName, OffsetPosEnum.END);
@@ -317,9 +317,6 @@ public class ConsumerServiceImpl implements ConsumerService {
                                                        String consumerGroup) {
         Map<Integer, String> stringOffsetMap =
                 getOffsetByGroupAndTopicFromBroker(clusterDO, consumerGroup, topicName);
-        if (ValidateUtils.isNull(stringOffsetMap)) {
-            return new HashMap<>(0);
-        }
 
         Map<Integer, Long> offsetMap = new HashMap<>(stringOffsetMap.size());
         for (Map.Entry<Integer, String> entry: stringOffsetMap.entrySet()) {
diff --git a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/JmxServiceImpl.java b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/JmxServiceImpl.java
index 611dc203..1dc3b011 100644
--- a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/JmxServiceImpl.java
+++ b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/JmxServiceImpl.java
@@ -164,9 +164,11 @@ public class JmxServiceImpl implements JmxService {
         if (ValidateUtils.isNull(jmxConnectorWrap)|| !jmxConnectorWrap.checkJmxConnectionAndInitIfNeed()) {
             return null;
         }
+
+        KafkaVersion kafkaVersion = physicalClusterMetadataManager.getKafkaVersion(clusterId, brokerId);
+
         TopicMetrics metrics = new TopicMetrics(clusterId, topicName);
         for (MbeanV2 mbeanV2: mbeanV2List) {
-            KafkaVersion kafkaVersion = physicalClusterMetadataManager.getKafkaVersion(clusterId, brokerId);
             try {
                 getAndSupplyAttributes2BaseMetrics(
                         metrics,
diff --git a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/TopicServiceImpl.java b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/TopicServiceImpl.java
index 70ef139c..94b3f88f 100644
--- a/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/TopicServiceImpl.java
+++ b/kafka-manager-core/src/main/java/com/xiaojukeji/kafka/manager/service/service/impl/TopicServiceImpl.java
@@ -416,9 +416,6 @@ public class TopicServiceImpl implements TopicService {
                     topicDO,
                     appDO
             );
-            if (ValidateUtils.isNull(overview)) {
-                continue;
-            }
             dtoList.add(overview);
         }