lizhiboo commented on a change in pull request #2682:
URL: https://github.com/apache/rocketmq/pull/2682#discussion_r579158834
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File path: docs/cn/client/java/API_Reference_NamesrvStartup.md
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@@ -0,0 +1,80 @@
+##NamesrvStarup
+---
+###类简介
+‘public class NamesrvStartup’
+
+>`NamesrvStartup`类是namesrv启动的入口类，在本地配置好环境变量ROCKETMQ_HOME后可通过执行其中的main方法来快速启动一个namesrv。namesrv主要负责维护活跃broker的信息和topic以及topic所在队列的信息。其中启动参数主要由namesrvConfig和nettyServerConfig这两个类来初始化，这两个类后面讲到，当然这些配置也可以通过启动指定配置文件进行修改。
+
+``` java
+ public static void main(String[] args) {
+ main0(args);
+ }
+
+ public static NamesrvController main0(String[] args) {
+
+ try {
+ //NamesrvController是namesrv接受请求并响应的核心类,
+ NamesrvController controller = createNamesrvController(args);
+ //启动并初始化NamesrvController
+ start(controller);
+ String tip = "The Name Server boot success. serializeType=" +
RemotingCommand.getSerializeTypeConfigInThisServer();
+ log.info(tip);
+ System.out.printf("%s%n", tip);
+ return controller;
+ } catch (Throwable e) {
+ e.printStackTrace();
+ System.exit(-1);
+ }
+
+ return null;
+ }
+```
+
+###namesrv启动过程一：创建NamesrvController
+createNamesrvController中会创建并初始化namesrvConfig和nettyServerConfig的实例
+
+#### namesrvConfig参数说明
+|类型|参数名称|描述|
+|------|-------|-------|
+|String|rocketmqHome|rocketmq的主目录|
+|String|kvConfigPath|kv配置属性的持久化路径|
+|String|configStorePath|namesrv的配置文件路径，可以使用-c指定|
+|String|productEnvName|环境名|
+|boolean|clusterTest|是否开启集群测试，默认false|
+|boolean|orderMessageEnable|是否支持顺序消息，默认是false|
+
+#### nettyServerConfig参数说明
+|类型|参数名称|描述|
+|------|-------|-------|
+|int|listenPort|nameServer监听的端口，是8888，后面会被初始化为9876|
+|int|serverWorkerThreads|netty的线程池线程个数|
Review comment:
netty的woker线程数，处理namesrv的业务逻辑线程。
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