营销型企业网站怎么建站,学生html个人网页免费模板,安徽网站关键词优化,网页游戏魔域来了本文介绍系统缓存组件#xff0c;采用NOSQL之Redis作为系统缓存层。 一、背景 系统考虑到高并发的使用场景。对于并发提交场景#xff0c;通过上一章节介绍的RabbitMQ组件解决。对于系统高并发查询#xff0c;为了提供性能减少数据库压力#xff0c;我们加入缓存机制#… 本文介绍系统缓存组件采用NOSQL之Redis作为系统缓存层。 一、背景 系统考虑到高并发的使用场景。对于并发提交场景通过上一章节介绍的RabbitMQ组件解决。对于系统高并发查询为了提供性能减少数据库压力我们加入缓存机制可以不同层次加入缓存支持本文主要介绍应用服务层和数据层之间加入缓存机制提升性能。业界缓存组件有Redis、Memcached、MemoryCache。本系统采用Redis缓存组件有些系统将Redis当作MQ使用此场景本系统用RabbitMQRedis主要用于系统缓存应用。 二、Redis简介 Redis是一个开源的Key-Value数据库使用C语言编写、支持网络、可基于内存亦可持久化的NOSQL数据库并提供多种语言的API例如JavaC/CC#PHPJavaScriptPerlObject-CPythonRuby等语言驱动。自Redis3.0开始支持集群方案。 相关Redis Cluster 原理在此不多介绍网络上有很多资料。 三、Redis集群应用 一环境介绍 本系统基于Linux之CentOS搭建Redis3.0集群。将三个Instance部署于一台虚拟机应用部署于windows平台。 序号服务IP说明1192.168.1.110Redis节点A端口7000(M)7003(S)Redis节点B端口7001(M)7004(S)Redis节点C端口7002(M)7005(S) 二安装Redis 1、安装相关依赖工具 1 [rootandoncentos 桌面]# yum -y install gcc openssl-devel libyaml-devel libffi-devel readline-devel zlib-devel gdbm-devel ncurses-devel gcc-c automake autoconf 2、安装Redis 3.0.6 1 [rootandoncentos 桌面]# cd /usr/loacal 1 [rootandoncentos loacal]# wget http: //download.redis.io/releases/redis-3.0.6.tar.gz 1 [rootandoncentos 桌面]#span class line tar xvf redis-3.0.6.tar.gzbr/span 1 [rootandoncentos 桌面]# span class line cd redis-3.0.6//span 1 [rootandoncentos 桌面]# span class line make MALLOClibc/span 1 span class line [rootandoncentos redis-3.0.6]# make install/span 3、由于我们使用不同端口号区分在两个服务各自建立以端口命名的文件夹。配置7000节点服务将redis-server和redis.conf复制到/etc/redis/7000 1 [rootandoncentos 桌面]# mkdir /etc/redis/7000 1 [rootandoncentos 桌面]# mkdir /etc/redis/7001 1 [rootandoncentos 桌面]# mkdir /etc/redis/7002 1 [rootandoncentos 桌面]# mkdir /etc/redis/7003 1 [rootandoncentos 桌面]# mkdir /etc/redis/7004 1 [rootandoncentos 桌面]# mkdir /etc/redis/7005 1 [rootandoncentos redis-3.0.6]# cp /usr/local/redis-3.0.6/src/redis-server /usr/local/redis-3.0.6/redis.conf /etc/redis/7000 1 [rootandoncentos redis-3.0.6]# vim /etc/redis/7000/redis.conf port 7000 daemonize yes pidfile /var/run/redis_7000.pid cluster-enabled yes cluster-config-file nodes.conf logfile /var/log/redisd7000.log dir /etc/redis/7000/ cluster-node-timeout 5000 appendonly yes 4、修改redis服务的启动脚本修改内容并复制相关其他的节点配置 1 2 [rootandoncentos redis-3.0.6]# cp /usr/local/redis-3.0.6/utils/redis_init_script /etc/init.d/redis7000 [rootandoncentos redis-3.0.6]# vim /etc/init.d/redis7000 #!/bin/sh# chkconfig 2345 90 10# description:Redis is a persistent key-value database# Simple Redis init.d script conceived to work on Linux systems# as it does use of the /proc filesystem. REDISPORT7000# EXEC/usr/local/bin/redis-serverEXEC/etc/redis/${REDISPORT}/redis-serverCLIEXEC/usr/local/bin/redis-cli PIDFILE/var/run/redis_${REDISPORT}.pidCONF/etc/redis/${REDISPORT}/redis.conf 1 2 3 [rootandoncentos redis-3.0.6]# cp /etc/init.d/redis7000 /etc/init.d/redis7001 [rootandoncentos redis-3.0.6]# cp /etc/init.d/redis7000 /etc/init.d/redis7003 [rootandoncentos redis-3.0.6]# cp /etc/init.d/redis7000 /etc/init.d/redis7004 5、设置为开机自启动服务器 1 2 3 4 [rootandoncentos redis-3.0.6]# chkconfig redis7000 on [rootandoncentos redis-3.0.6]# chkconfig redis7001 on [rootandoncentos redis-3.0.6]# chkconfig redis7003 on [rootandoncentos redis-3.0.6]# chkconfig redis7004 on 6、重启系统并检查redis7000,redis7001,redis7003,redis7004服务情况 1 [rootandoncentos redis-3.0.6]# rebootbr[rootandoncentos 桌面]# systemctl status redis7004.service 三配置Redis集群 1、按照 ruby tree 工具因为redis集群需要ruby 1 [rootandoncentos redis-3.0.6]# yum -y install tcl ruby treebr[rootandoncentos 桌面]# gem install redis --version 3.0.6 Fetching: redis-3.0.6.gem (100%)Successfully installed redis-3.0.6Parsing documentation for redis-3.0.6Installing ri documentation for redis-3.0.61 gem installed 2、redis-trib.rb 配置集群 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 [rootandoncentos 桌面]# /usr/local/redis-3.0.6/src/redis-trib.rb create --replicas 1 192.168.1.110:7000 192.168.1.110:7001 192.168.1.110:7002 192.168.1.110:7003 192.168.1.110:7004 192.168.1.110:7005 Creating cluster Performing hash slots allocation on 6 nodes... Using 3 masters: 192.168.1.110:7000 192.168.1.110:7001 192.168.1.110:7002 Adding replica 192.168.1.110:7003 to 192.168.1.110:7000 Adding replica 192.168.1.110:7004 to 192.168.1.110:7001 Adding replica 192.168.1.110:7005 to 192.168.1.110:7002 M: b164701893bfbdc078e2f7e3b16f1216c1bf65ff 192.168.1.110:7000 slots:0-5460 (5461 slots) master M: 4c2d36c55cff692a7bbeccb663197b555747d15d 192.168.1.110:7001 slots:5461-10922 (5462 slots) master M: b147e4dfcd63c5ce059540db55a9d7cb9fa093eb 192.168.1.110:7002 slots:10923-16383 (5461 slots) master S: 757381aa5cc5c8ba70f3798f6de6cb7b2e97f924 192.168.1.110:7003 replicates b164701893bfbdc078e2f7e3b16f1216c1bf65ff S: fecc8edf32fc72cd4a5d8ae5306fe4083abfe8e9 192.168.1.110:7004 replicates 4c2d36c55cff692a7bbeccb663197b555747d15d S: 98bd8e1aff631a3bee7f92a39764decea16ee955 192.168.1.110:7005 replicates b147e4dfcd63c5ce059540db55a9d7cb9fa093eb Can I set the above configuration? (type yes to accept): strongyes/strong Nodes configuration updated Assign a different config epoch to each node Sending CLUSTER MEET messages to join the cluster Waiting for the cluster to join .... Performing Cluster Check ( using node 192.168.1.110:7000) M: b164701893bfbdc078e2f7e3b16f1216c1bf65ff 192.168.1.110:7000 slots:0-5460 (5461 slots) master M: 4c2d36c55cff692a7bbeccb663197b555747d15d 192.168.1.110:7001 slots:5461-10922 (5462 slots) master M: b147e4dfcd63c5ce059540db55a9d7cb9fa093eb 192.168.1.110:7002 slots:10923-16383 (5461 slots) master M: 757381aa5cc5c8ba70f3798f6de6cb7b2e97f924 192.168.1.110:7003 slots: (0 slots) master replicates b164701893bfbdc078e2f7e3b16f1216c1bf65ff M: fecc8edf32fc72cd4a5d8ae5306fe4083abfe8e9 192.168.1.110:7004 slots: (0 slots) master replicates 4c2d36c55cff692a7bbeccb663197b555747d15d M: 98bd8e1aff631a3bee7f92a39764decea16ee955 192.168.1.110:7005 slots: (0 slots) master replicates b147e4dfcd63c5ce059540db55a9d7cb9fa093eb [OK] All nodes agree about slots configuration. Check for open slots... Check slots coverage... [OK] All 16384 slots covered. 3、检查集群状态 1 [rootandoncentos 桌面]# /usr/local/redis-3.0.6/src/redis-trib.rb check 192.168.1.110:7000 4、若出错的话通过如下命令行修复 1 [rootandoncentos 桌面]# /usr/local/redis-3.0.6/src/redis-trib.rb fix 192.168.1.110:7000 5、防火墙开放端口并重启防火墙 1 2 3 4 [rootandoncentos 桌面]# firewall-cmd --zone public --add-port7000-7005/tcp --permanent success [rootandoncentos 桌面]# firewall-cmd --reload success 6、检查集群情况 1 2 3 4 5 6 7 8 9 10 11 12 13 [rootandoncentos 桌面]# redis-cli -c -p 7000 127.0.0.1:7000 cluster info cluster_state:ok cluster_slots_assigned:16384 cluster_slots_ok:16384 cluster_slots_pfail:0 cluster_slots_fail:0 cluster_known_nodes:6 cluster_size:3 cluster_current_epoch:6 cluster_my_epoch:1 cluster_stats_messages_sent:2492 cluster_stats_messages_received:2492 四、使用说明 一使用命令行测试缓存 二通过C#代码测试缓存 1、通过使用stackexchang.redis组件将数据缓存到集群redis服务。 1 2 3 4 5 6 7 var cfg RedisCachingSectionHandler.GetConfig(); var serializer new NewtonsoftSerializer(); var redis new StackExchangeRedisCacheClient(serializer, cfg); var cls new Cls(){ ID 1, Name txt }; string key tkey new Random().Next(1000, 9999).ToString(); redis.AddCls(key, cls); 2、通过key获取数据 1 2 3 4 5 var cfg RedisCachingSectionHandler.GetConfig(); var serializer new NewtonsoftSerializer(); var redis new StackExchangeRedisCacheClient(serializer, cfg); var entity redis.GetCls(key); ViewBag.KV entity ! null ? entity.Name : ; 3、redis缓存情况 五、总结 redis cluster 默认支持HA但是对于单个Instance故障使用者需要自行判断处理的机制后续有待于研究但是redis codis 这方面提供了方便的支持。 原文地址http://www.cnblogs.com/Andon_liu/p/5460374.html .NET社区新闻深度好文微信中搜索dotNET跨平台或扫描二维码关注
