高可用高性能分布式文件系统FastDFS进阶keepalived+nginx对多tracker进行高可用热备
在上一篇 分布式文件系统FastDFS如何做到高可用 中已经介绍了FastDFS的原理和怎么搭建一个简单的高可用的分布式文件系统及怎么访问。 高可用是实现了,但由于我们只设置了一个group,如果现在有5台服务器那将会出现5台只有一个group,每台服务器内的文件内容都相同(互备份)如下图,会造成资源浪费。 因此下面就5台服务器进行优化改造,进一步添加kee...
如何快速构建高可用集群(Keepalived+Haproxy+Nginx)
组件及实现的功能 Keepalived:实现对Haproxy服务的高可用,并采用双主模型配置; Haproxy:实现对Nginx的负载均衡和读写分离; Nginx:实现对HTTP请求的高速处理; 架构设计图 重点概念 vrrp_script中节点权重改变算法 vrrp_script 里的script返回值为0时认为检测成功,其它值都会当成检测失败; weight 为正时,脚...
高可用笔记(6)keepalived+nginx
前面讲到了部署多个tomcat和多个rabbitmq用nginx做代理服务器,这种情况,tomcat和rabbitmq既实现了高可用又实现了负载均衡。但是,nginx确成了单点。在一个HA环境中,任何一个点都必须实现高可用,这里就需要借助keepalived来实现nginx的高可用。 测试环境 host1 192.168.30.1 (nginx, keepalived/master) host.....
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