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基于Tornado、Redis、UDP多播的分布式聊天室
This project forked from shelmesky/async_chatroom
基于Tornado、Redis、UDP多播的分布式聊天室
介绍: 使用纯python实现。 多用户聊天室,支持多房间、全局广播、用户私聊。 分布式部署,支持多个服务器横向扩展。 最前端可以使用nginx做负载均衡。 部署: 依赖的组件: 1. python 2.7+ 2. tornado 2.4+ 3. redis server 4. python redis client 平台: Linux/BSD 服务器配置: 1. 配置redis服务器,可参考redis官方教程,无特别要求。 2. 设置防火墙 在iptables上打开UDP 3000端口 shell> iptables -A INPUT -p udp --dport 3000 -j ACCEPT 3. UPD多播配置: 这里先假设是在多台服务器上部署,需要每台服务器分别设置多播路由: shell> router add –net 224.0.0.0 netmask 224.0.0.0 dev eth0 4. 多播路由设置完成后,可以启动服务器。假设有两台服务器A和B: 服务器A: python prototype_redis.py --port=10000 服务器B:python prototype_redis.py --port=10000 5. 测试: 分别在两个不同主机,或同一个主机的两个不同的浏览器上(如firefix和chrome)打开: http://ServerA:10000 http://ServerB:10000 单机部署: 单机部署比较特殊,不仅需要配置多播路由,还需要关闭linux内核的源地址过滤功能: 配置多播路由: shell> router add –net 224.0.0.0 netmask 224.0.0.0 dev lo 在本地环回网卡上增加一条多播路由。 关闭源地址过滤: 在/etc/sysctl.conf中最后加入: net.ipv4.conf.default.rp_filter = 0 net.ipv4.conf.all.rp_filter = 0 关闭源地址过滤功能,需要重启服务器。
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