vongosling commented on a change in pull request #57:
URL: https://github.com/apache/rocketmq-dashboard/pull/57#discussion_r778490497



##########
File path: 
src/main/java/org/apache/rocketmq/dashboard/service/impl/ConsumerServiceImpl.java
##########
@@ -296,14 +296,22 @@ public boolean apply(MessageQueue o) {
 
     @Override
     public boolean deleteSubGroup(DeleteSubGroupRequest deleteSubGroupRequest) 
{
+        Set<String> brokerSet = 
this.fetchBrokerNameSetBySubscriptionGroup(deleteSubGroupRequest.getGroupName());
+        List<String> brokerList = deleteSubGroupRequest.getBrokerNameList();
+        boolean deleteInNsFlag = false;
+        // If the list of brokers passed in by the request contains the list 
of brokers that the consumer is in,
+        // delete RETRY and DLQ topic in namesrv

Review comment:
       //Delete... The first letter of the comment is capitalized and the style 
is consistent.
   

##########
File path: 
src/main/java/org/apache/rocketmq/dashboard/service/impl/ConsumerServiceImpl.java
##########
@@ -312,14 +320,16 @@ public boolean deleteSubGroup(DeleteSubGroupRequest 
deleteSubGroupRequest) {
         return true;
     }
 
-    private void deleteResources(String topic, String brokerName, ClusterInfo 
clusterInfo) throws Exception {
+    private void deleteResources(String topic, String brokerName, ClusterInfo 
clusterInfo, boolean deleteInNsFlag) throws Exception {
         
mqAdminExt.deleteTopicInBroker(Sets.newHashSet(clusterInfo.getBrokerAddrTable().get(brokerName).selectBrokerAddr()),
 topic);
         Set<String> nameServerSet = null;
         if (StringUtils.isNotBlank(configure.getNamesrvAddr())) {
             String[] ns = configure.getNamesrvAddr().split(";");
             nameServerSet = new HashSet<>(Arrays.asList(ns));
         }
-        mqAdminExt.deleteTopicInNameServer(nameServerSet, topic);
+        if (deleteInNsFlag) {

Review comment:
       Any unit test coverage for this logic?




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