linux环境下安装redis详细步骤以及配置redis集群详细步骤

使用redis做缓存

安装redis
本教程使用redis3.0版本。3.0版本主要增加了redis集群功能。
安装的前提条件，需要安装gcc：

yum install gcc-c++

1.下载redis的源码包。
2. 把源码包上传到linux服务器
3. 解压源码包

tar -zxvf redis-3.0.0.tar.gz 

4.Make
5.Make install

[root@bogon redis-3.0.0]# make install PREFIX=/usr/local/redis

启动redis
1.前端启动模式
/usr/local/redis/bin/redis-server
默认是前端启动模式，端口是6379
Redis常用命令测试
127.0.0.1:6379> set a 10
OK
127.0.0.1:6379> get a
“10”
安装成功

Redis集群的搭建

我们的集群结构
集群中有三个节点的集群，每个节点有一主一备。需要6台虚拟机。
搭建一个伪分布式的集群，使用6个redis实例来模拟。

1.搭建集群需要的环境
搭建集群需要使用到官方提供的ruby脚本。
需要安装ruby的环境。

yum install rubyyum install rubygems

安装ruby的包：

gem install redis-3.0.0.gem

[root@bogon ~]# gem install redis-3.0.0.gem Successfully installed redis-3.0.01 gem installedInstalling ri documentation for redis-3.0.0...Installing RDoc documentation for redis-3.0.0...

redis集群管理工具redis-trib.rb

[root@bogon ~]# cd redis-3.0.0
[root@bogon redis-3.0.0]#cd src
[root@bogon src]# ll *.rb
-rwxrwxr-x. 1 root root 48141 Apr 1 07:01 redis-trib.rb

集群的搭建

第一步：创建6个redis实例，端口号从7001~7006
第二步：修改redis的配置文件
1、修改端口号
2、打开cluster-enable前面的注释。
第三步：把创建集群的ruby脚本复制到redis-cluster目录下。
第四步：启动6个redis实例
第五步：创建集群。

./redis-trib.rb create --replicas 1 192.168.25.153:7001 192.168.25.153:7002 192.168.25.153:7003 192.168.25.153:7004 192.168.25.153:7005  192.168.25.153:7006

**[root@bogon redis-cluster]# ./redis-trib.rb create --replicas 1 192.168.25.153:7001 192.168.25.153:7002 192.168.25.153:7003 192.168.25.153:7004 192.168.25.153:7005  192.168.25.153:7006>>> Creating clusterConnecting to node 192.168.25.153:7001: OKConnecting to node 192.168.25.153:7002: OKConnecting to node 192.168.25.153:7003: OKConnecting to node 192.168.25.153:7004: OKConnecting to node 192.168.25.153:7005: OKConnecting to node 192.168.25.153:7006: OK>>> Performing hash slots allocation on 6 nodes...Using 3 masters:192.168.25.153:7001192.168.25.153:7002192.168.25.153:7003Adding replica 192.168.25.153:7004 to 192.168.25.153:7001Adding replica 192.168.25.153:7005 to 192.168.25.153:7002Adding replica 192.168.25.153:7006 to 192.168.25.153:7003M: 5a8523db7e12ca600dc82901ced06741b3010076 192.168.25.153:7001   slots:0-5460 (5461 slots) masterM: bf6f0929044db485dea9b565bb51e0c917d20a53 192.168.25.153:7002   slots:5461-10922 (5462 slots) masterM: c5e334dc4a53f655cb98fa3c3bdef8a808a693ca 192.168.25.153:7003   slots:10923-16383 (5461 slots) masterS: 2a61b87b49e5b1c84092918fa2467dd70fec115f 192.168.25.153:7004   replicates 5a8523db7e12ca600dc82901ced06741b3010076S: 14848b8c813766387cfd77229bd2d1ffd6ac8d65 192.168.25.153:7005   replicates bf6f0929044db485dea9b565bb51e0c917d20a53S: 3192cbe437fe67bbde9062f59d5a77dabcd0d632 192.168.25.153:7006   replicates c5e334dc4a53f655cb98fa3c3bdef8a808a693caCan I set the above configuration? (type 'yes' to accept): yes>>> Nodes configuration updated>>> Assign a different config epoch to each node>>> Sending CLUSTER MEET messages to join the clusterWaiting for the cluster to join.....>>> Performing Cluster Check (using node 192.168.25.153:7001)M: 5a8523db7e12ca600dc82901ced06741b3010076 192.168.25.153:7001   slots:0-5460 (5461 slots) masterM: bf6f0929044db485dea9b565bb51e0c917d20a53 192.168.25.153:7002   slots:5461-10922 (5462 slots) masterM: c5e334dc4a53f655cb98fa3c3bdef8a808a693ca 192.168.25.153:7003   slots:10923-16383 (5461 slots) masterM: 2a61b87b49e5b1c84092918fa2467dd70fec115f 192.168.25.153:7004   slots: (0 slots) master   replicates 5a8523db7e12ca600dc82901ced06741b3010076M: 14848b8c813766387cfd77229bd2d1ffd6ac8d65 192.168.25.153:7005   slots: (0 slots) master   replicates bf6f0929044db485dea9b565bb51e0c917d20a53M: 3192cbe437fe67bbde9062f59d5a77dabcd0d632 192.168.25.153:7006   slots: (0 slots) master   replicates c5e334dc4a53f655cb98fa3c3bdef8a808a693ca[OK] All nodes agree about slots configuration.>>> Check for open slots...>>> Check slots coverage...[OK] All 16384 slots covered.[root@bogon redis-cluster]#** 

测试集群

[root@bogon redis-cluster]# redis01/redis-cli -h 192.168.25.153 -p 7002192.168.25.153:7002> set a 100(error) MOVED 15495 192.168.25.153:7003192.168.25.153:7002> [root@bogon redis-cluster]# redis01/redis-cli -h 192.168.25.153 -p 7002 -c192.168.25.153:7002> set a 100-> Redirected to slot [15495] located at 192.168.25.153:7003OK192.168.25.153:7003> 

关闭redis

redis01/redis-cli -p 7001 shutdown