张宴的博客

准备转化“故障转移群集解决方案”理论为实践

Fri, 21 Sep 2007 11:18:15 +0000

　　在微软的MSDN网站上看到一篇理论文章《Failover Cluster（故障转移群集）》，文中的故障转移群集解决方案，有点类似两台 F5 BIG-IP 负载均衡交换机通过串口线进行心跳检测的互备模式，对我来说很有参考价值。

　　最近打算写一套基于Linux系统的实际应用方案，在两台Web服务器之间实现故障转移：用户实际访问的IP地址是“x.x.1.10”，两台服务器自动切换用Linux的IP别名来实现，当主服务器“x.x.1.1”正常时，主服务器的IP别名“x.x.1.10”对外提供服务，当两台服务器之间的心跳检测程序发现主服务器“x.x.1.1”发生故障或死机时，会停掉主服务器“x.x.1.1”的IP别名“x.x.1.10”（主服务器死机时该IP别名会自动消失），而由备用服务器“x.x.1.2”启用相同的IP别名“x.x.1.10”来接替主服务器提供服务；“信号”打算自己写一个心跳检测程序来实现；共享数据部分还没想好用什么方式来实现，NFS吗？不知道NFS在高负载读写下的性能如何？

　　附：故障转移群集解决方案
　　

　　第一台服务器 (Database01) 是处理所有事务的活动服务器。仅当 Database01 发生故障时，处于空闲状态的第二台服务器 (Database02) 才会处理事务。群集将一个虚拟 IP 地址和主机名 (Database10) 在客户端和应用程序所使用的网络上公开。

　　注意：您可以将此设计扩展为包括多台活动服务器（除了所示的服务器外），要么使它们共享单个备用服务器，要么将每个活动服务器配置为另一个活动服务器的备用服务器。
Tags - linux

[评论] 准备转化“故障转移群集解决方案”理论为实践

Fri, 21 Sep 2007 13:24:26 +0000

这已经有成熟的解决方案了，不用再造轮子，可以了解一下brdb及heartbeat

[评论] 准备转化“故障转移群集解决方案”理论为实践

Mon, 24 Sep 2007 02:42:21 +0000

试试LVS吧

[评论] 准备转化“故障转移群集解决方案”理论为实践

Mon, 24 Sep 2007 03:33:16 +0000

请问张师兄：
如何使用PHP+Socket编程发送数据包（或文件）？
条件：系统双方具有重发机制：每次发送数据包的时候，带有发送次数，当另一端接受数据包后，将返回应答信息，如果在规定的时间内（每30S），没有收到应答信息，将重新发送，发送次数加+1，达到N次后（N值=100），将不再重新发送。在双方的界面上能体现失败。
张师兄能否给个例子程序？在此感谢！！

[评论] 准备转化“故障转移群集解决方案”理论为实践

Fri, 11 Jan 2008 04:48:57 +0000

LVS+heartbeat

[评论] 准备转化“故障转移群集解决方案”理论为实践

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