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分布式数据库中间件–(1)Cobar初始化过程

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Release： 2016-06-07 15:55:51
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Cobar-Server的源码地址：GitHub 欢迎Fork。 官方文档描述Cobar的网络通信模块见下图， Cobar使用了Java的NIO进行处理读写，NIO是Java中的IO复用，而不需要对每个连接都建立一个处理线程。详细请看 非阻塞I/OJava NIO教程 Cobar的初始化流程图如下： 在Cobar

Cobar-Server的源码地址：GitHub 欢迎Fork。

官方文档描述Cobar的网络通信模块见下图，

thread flow

 Cobar使用了Java的NIO进行处理读写，NIO是Java中的IO复用，而不需要对每个连接都建立一个处理线程。详细请看 非阻塞I/O–Java NIO教程

Cobar的初始化流程图如下：

\

在Cobar实例化过程中三个XML配置文件的加载类图关系如下（具体的成员没有标明）：

\

这样Cobar系统就在运行了：

  • 每个Processor都启动反应堆的两个线程R和W来处理NIO的输入和输出
  • 一个connector线程，处理和后端的MySQL节点连接
  • 一个acceptor线程，用于接受来自客户端的连接请求。
  • timer任务包括（时间定期更新、定时执行processor检查，用于清理资源回收、数据节点空闲超时 检查、数据节点心跳包、Cobar集群心跳包）作者：GeekCome出处：极客来原文：分布式数据库中间件–(1) Cobar初始化过程提示：本文版权归作者，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接。如果对文章有任何问题，都可以在评论中留言，我会尽可能的答复您，谢谢你的阅读
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middleware distributed initialization database process
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