亿级流量电商详情页系统实战-21.搭建redis cluster集群

╰半橙微兮° 2023-01-12 01:53 109阅读 0赞

# 1.服务器规划 #

<table> 
 <thead> 
  <tr> 
   <th>服务器</th> 
   <th>端口</th> 
   <th>角色</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>192.168.135.135</td> 
   <td>7001</td> 
   <td>Master</td> 
  </tr> 
  <tr> 
   <td>192.168.135.132</td> 
   <td>7002</td> 
   <td>Master</td> 
  </tr> 
  <tr> 
   <td>192.168.135.136</td> 
   <td>7003</td> 
   <td>Master</td> 
  </tr> 
  <tr> 
   <td>192.168.135.135</td> 
   <td>7004</td> 
   <td>Slave</td> 
  </tr> 
  <tr> 
   <td>192.168.135.132</td> 
   <td>7005</td> 
   <td>Slave</td> 
  </tr> 
  <tr> 
   <td>192.168.135.136</td> 
   <td>7006</td> 
   <td>Slave</td> 
  </tr> 
 </tbody> 
</table>

# 2.环境准备 #

## 2.1 安装gcc ##

yum -y install gcc

## 2.2 安装tcl ##

#cd /usr/local
    #wget http://downloads.sourceforge.net/tcl/tcl8.6.1-src.tar.gz
    #tar -xzvf tcl8.6.1-src.tar.gz
    #rm tcl8.6.1-src.tar.gz
    #cd /usr/local/tcl8.6.1/unix/
    #./configure 
    #make && make install

# 3.安装redis #

## 3.1 安装 ##

#cd /usr/local
    #tar -zxvf redis-3.2.8.tar.gz
    #rm redis-3.2.8.tar.gz
    #cd redis-3.2.8
    #make && make test && make install

## 3.2 配置 ##

1.  创建两个目录：/etc/redis（存放redis的配置文件），/var/redis/XXX端口号（存放redis的持久化文件）
    
        #mkdir -p /etc/redis
        #mkdir -p /var/redis/? 
        #mkdir -p /etc/redis-cluster
        #mkdir -p /var/log/redis
2.  修改redis配置文件
    
        #cp /usr/local/redis-3.2.8/redis.conf /etc/redis/?.conf
        #vi /etc/redis/?.conf
            port ?
        	cluster-enabled yes #开启集群
        	#供cluster模式下的redis实例将集群状态保存在那里，包括集群中其他机器的信息，比如节点的上线和下限，故障转移
        	#不是我们去维护的，给它指定一个文件，让redis自己去维护的
        	cluster-config-file /etc/redis-cluster/node-?.conf 
        	#节点存活超时时长，超过一定时长，认为节点宕机，master宕机的话就会触发主备切换，slave宕机就不会提供服务
        	cluster-node-timeout 15000 
        	daemonize	yes							
        	pidfile		/var/run/redis_?.pid 						
        	dir 		/var/redis/?		
        	logfile /var/log/redis/?.log
        	bind xxx.xxx.xxx.xxx	
        	appendonly yes
3.  修改/etc/init.d/redis\_?，支持开机自启动
    
        #cp /usr/local/redis-3.2.8/utils/redis_init_script /etc/init.d/redis_?
        # vi /etc/init.d/redis_?
        #!/bin/sh
        #
        # Simple Redis init.d script conceived to work on Linux systems
        # as it does use of the /proc filesystem.
        # chkconfig: 2345 90 10
        # description: Redis is a persistent key-value database

## 3.3 启动 ##

--启动
    #/etc/init.d/redis_? start
    
    --确认redis进程是否启动
    # ps -ef |grep redis
    root      47453      1  0 16:29 ?        00:00:01 /usr/local/bin/redis-server 127.0.0.1:?
    root      48678   2812  0 16:52 pts/2    00:00:00 grep --color=auto redis
    
    --开启服务自启动
    #chkconfig redis_? on
    	
    --加入开机自启服务
    #chkconfig --add redis_?

# 4.创建集群 #

# cd /usr/local/
    #yum erase ruby ruby-libs ruby-mode ruby-rdoc ruby-irb ruby-ri ruby-docs
    # yum -y install zlib-devel curl-devel openssl-devel httpd-devel apr-devel apr-util-devel mysql-devel
    # wget https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.gz
    # tar -zxvf ruby-2.3.1.tar.gz
    # rm ruby-2.3.1.tar.gz
    # cd ruby-2.3.1
    # ./configure -prefix=/usr/local/ruby
    # make && make install
    # cp /usr/local/ruby/bin/ruby /usr/bin/ruby 
    # cp /usr/local/ruby/bin/gem /usr/bin/gem
    #ruby -v
    
    # cd /usr/local/
    # wget http://rubygems.org/downloads/redis-3.3.0.gem
    # gem install -l ./redis-3.3.0.gem
    
    #cp /usr/local/redis-3.2.8/src/redis-trib.rb /usr/local/bin
    #redis-trib.rb create --replicas 1 192.168.135.135:7001 192.168.135.132:7002 192.168.135.136:7003 192.168.135.135:7004 192.168.135.132:7005 192.168.135.136:7006
    
    #发现失败了
    #yum install -y ruby
    #yum install -y rubygems
    #gem install redis
    #redis-trib.rb create --replicas 1 192.168.135.126:7001 192.168.135.129:7002 192.168.135.130:7003 192.168.135.126:7004 192.168.135.129:7005 192.168.135.130:7006
    
    #redis-trib.rb check 192.168.135.126:7001
    
    # redis-cli -c -h 192.168.135.126 -p 7001
    192.168.135.135:7001> set a 1
    -> Redirected to slot [15495] located at 192.168.135.136:7003
    OK
    192.168.135.136:7003> get a
    "1"