!46 backport add improve performance

From: @zhiliatox 
Reviewed-by: @hu-zongtang 
Signed-off-by: @hu-zongtang

patch041-backport-improve-performance.patch

@@ -0,0 +1,53 @@
+From 65faea22fd54fd9875f2ca9d3088b4dc46d31cce Mon Sep 17 00:00:00 2001
+From: keranbingaa <397294722@qq.com>
+Date: Fri, 1 Dec 2023 10:05:16 +0800
+Subject: [PATCH] [ISSUE #7534] Use high performance concurrent set to replace
+ copyonwriteset (#7583)
+
+* fix ISSUE #7534
+
+* reformat code
+
+* Remove the useless unit test
+
+---------
+
+Co-authored-by: RongtongJin <jinrongtong16@mails.ucas.ac.cn>
+---
+ .../rocketmq/namesrv/routeinfo/RouteInfoManagerNewTest.java   | 1 -
+ .../org/apache/rocketmq/remoting/protocol/body/TopicList.java | 4 ++--
+ 2 files changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/namesrv/src/test/java/org/apache/rocketmq/namesrv/routeinfo/RouteInfoManagerNewTest.java b/namesrv/src/test/java/org/apache/rocketmq/namesrv/routeinfo/RouteInfoManagerNewTest.java
+index 6002d1f5a..b52cf5074 100644
+--- a/namesrv/src/test/java/org/apache/rocketmq/namesrv/routeinfo/RouteInfoManagerNewTest.java
++++ b/namesrv/src/test/java/org/apache/rocketmq/namesrv/routeinfo/RouteInfoManagerNewTest.java
+@@ -130,7 +130,6 @@ public class RouteInfoManagerNewTest {
+         topicList = TopicList.decode(content, TopicList.class);
+         assertThat(topicList.getTopicList()).contains("TestTopic", "TestTopic1", "TestTopic2");
+     }
+-
+     @Test
+     public void registerBroker() {
+         // Register master broker
+diff --git a/remoting/src/main/java/org/apache/rocketmq/remoting/protocol/body/TopicList.java b/remoting/src/main/java/org/apache/rocketmq/remoting/protocol/body/TopicList.java
+index 30edfb5a9..0de0bae7e 100644
+--- a/remoting/src/main/java/org/apache/rocketmq/remoting/protocol/body/TopicList.java
++++ b/remoting/src/main/java/org/apache/rocketmq/remoting/protocol/body/TopicList.java
+@@ -17,11 +17,11 @@
+ package org.apache.rocketmq.remoting.protocol.body;
+ 
+ import java.util.Set;
+-import java.util.concurrent.CopyOnWriteArraySet;
++import java.util.concurrent.ConcurrentHashMap;
+ import org.apache.rocketmq.remoting.protocol.RemotingSerializable;
+ 
+ public class TopicList extends RemotingSerializable {
+-    private Set<String> topicList = new CopyOnWriteArraySet<>();
++    private Set<String> topicList = ConcurrentHashMap.newKeySet();
+     private String brokerAddr;
+ 
+     public Set<String> getTopicList() {
+-- 
+2.32.0.windows.2
+

rocketmq.spec

@@ -5,7 +5,7 @@
 Summary: Cloud-Native, Distributed Messaging and Streaming
 Name: rocketmq
 Version: 5.1.5
-Release: 41
+Release: 42
 License: Apache-2.0
 Group: Applications/Message
 URL: https://rocketmq.apache.org/
@@ -50,6 +50,7 @@ Patch0037: patch037-backport-Retry-topic-v2-in-pop.patch
 Patch0038: patch038-backport-SlaveActingMaster-Timer-Message-retry-without-escape-logic.patch
 Patch0039: patch039-backport-add-some-validations.patch
 Patch0040: patch040-backport-add-some-test-cases.patch
+Patch0041: patch041-backport-improve-performance.patch
 BuildRequires: java-1.8.0-openjdk-devel, maven, maven-local, git
 Requires: java-1.8.0-openjdk-devel
 
@@ -90,6 +91,9 @@ exit 0
 
 
 %changelog
+* Mon Dec 11 2023 ShiZhili <shizhili_yewu@cmss.chinamobile.com> - 5.1.3-42
+- backport add improve performance
+
 * Mon Dec 11 2023 ShiZhili <shizhili_yewu@cmss.chinamobile.com> - 5.1.3-41
 - backport add some test cases