guyinyou commented on code in PR #7665:
URL: https://github.com/apache/rocketmq/pull/7665#discussion_r1427551399


##########
broker/src/main/java/org/apache/rocketmq/broker/processor/PopMessageProcessor.java:
##########
@@ -493,8 +509,22 @@ private CompletableFuture<Long> popMsgFromQueue(String 
attemptId, boolean isRetr
         PopMessageRequestHeader requestHeader, int queueId, long restNum, int 
reviveQid,
         Channel channel, long popTime, ExpressionMessageFilter messageFilter, 
StringBuilder startOffsetInfo,
         StringBuilder msgOffsetInfo, StringBuilder orderCountInfo) {
-        String topic = isRetry ? 
KeyBuilder.buildPopRetryTopic(requestHeader.getTopic(),
-            requestHeader.getConsumerGroup()) : requestHeader.getTopic();
+        return popMsgFromQueue(attemptId, isRetry, getMessageResult, 
requestHeader, queueId, restNum, reviveQid, channel,
+            popTime, messageFilter, startOffsetInfo, msgOffsetInfo, 
orderCountInfo, true);
+    }
+
+    private CompletableFuture<Long> popMsgFromQueue(String attemptId, boolean 
isRetry, GetMessageResult getMessageResult,
+        PopMessageRequestHeader requestHeader, int queueId, long restNum, int 
reviveQid,
+        Channel channel, long popTime, ExpressionMessageFilter messageFilter, 
StringBuilder startOffsetInfo,
+        StringBuilder msgOffsetInfo, StringBuilder orderCountInfo, boolean 
isRetryV2) {
+        String topic;

Review Comment:
   在调用 popMsgFromQueue 之前应该都有一段
   this.brokerController.getTopicConfigManager().selectTopicConfig()
   的逻辑,其实已经确定好topic名字了,如果直接传进来,是不是就不需要关心v1还是v2了,逻辑更收敛,而且少了一次字符串拼接性能也好一点。



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