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# Disruptor与Netty实现百万级长连接接入
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## 1. 核心模块组成
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* Disruptor与Netty整合的服务端实现
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* Disruptor与Netty整合的客户端实现
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* Netty的高性能
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* Disruptor核心池化封装
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* 承接百万级连接的接入
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## 2. 启动及结构说明
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dev-protocol-disruptor-netty-client 客户端(后启动)
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dev-protocol-disruptor-netty-common 公用的jar(对Server和Client端同时提供依赖)
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dev-protocol-disruptor-netty-server 服务端(先启动)
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## 3. Netty高性能问题分析
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```java
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WorkGroup <---- NettyClient -------------------------> NettyServer (BossGroup + WorkGroup)
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|/ |/
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ClientHandler ServerHandler[如果业务很复杂的话,耗时很长的话,会影响性能
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|/ DATA1
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DATA2 |
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|/ producer 生产者
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producer 生产者 |
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|/ disruptor组件
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disruptor组件 | |
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|/ |/ consumer1 consumer2
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consumer1 consumer2
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```
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---
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* 在使用Netty进行接收处理数据的时候,我们尽量都不要在工作线程上全编写自己的代码逻辑
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* 我们需要利用异步的机制,比如使用线程池异步处理,如果使用线程池就意味着使用阻塞队列,这里可以替换为Disruptor提高性能
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---
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* 解决办法
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* ServerHandler的消息处理交给一个异步的线程池去处理即可(数据库持久化操作,IO读写)
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* 采用Disruptor作为异步线程池的替代来进行处理
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