一.安装依赖
1.ruby
安装 yum install ruby
安装后查看版本 ruby -v (redis依赖版本为2.0以上)
若不满足则卸载 yum remove ruby ruby-devel
重新安装
方法一：换yum源安装
yum install centos-release-scl-rh //会在/etc/yum.repos.d/目录下多出一个CentOS-SCLo-scl-rh.repo源
yum install rh-ruby25 -y //直接yum安装即可
scl enable rh-ruby25 bash //必要一步
ruby -v //查看安装版本
方法二：下载tar压缩包安装
wget http://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.5.tar.gz
tar zxvf ruby-2.3.5.tar.gz
cd ruby-2.3.5
./configure --prefix=/opt/ruby
make && make install
ln -s /opt/ruby/bin/ruby /usr/bin/ruby
ln -s /opt/ruby/bin/gem /usr/bin/gem
ruby -v //查看一下
方法三：RVM 安装
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E37D2BAF1CF37B13E2069D6956105BD0E739499BDB
可能会等待一段时间，然后执行下面命令：
curl -sSL https://get.rvm.io | bash -s stable
source /etc/profile.d/rvm.sh //按照提示，执行该命令
rvm list known // list一下可以安装的版本
rvm install 2.4.1 // 直接跟版本号即可
ruby -v //查看验证下已经安装的版本
gem -v
2.gem
yum install rubygems
3.redis接口
下载https://rubygems.org/gems/redis/versions/3.3.5
gem install -l redis-3.3.5.gem
gem list|grep redis //查看安装版本
二.redis
1.安装
下载源码http://download.redis.io/releases/redis-4.0.1.tar.gz
安装redis需要先将官网下载的源码进行编译，编译依赖gcc环境，如果没有gcc环境，需要安装gcc：yum install gcc-c++
解压命令：
tar -zxvf redis-4.0.1.tar.gz
//进入解压后的目录进行编译
cd /usr/local/redis-4.0.1
make
//安装到指定目录,如 /usr/local/redis
cd /usr/local/redis-4.0.1
make PREFIX=/usr/local/redis install
2.配置文件
bind 192.168.182.128
protected-mode no
port 7001
daemonize yes
supervised no
pidfile /var/run/redis_7001.pid
loglevel notice
logfile "/home/test/redis/7001/log"
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
rdbcompression yes
dbfilename dump.rdb
dir /home/test/redis/7001/data/
appendonly no
appendfilename "appendonly.aof"
# appendfsync always
appendfsync everysec
# appendfsync no
cluster-enabled yes
cluster-config-file nodes-7001.conf
cluster-node-timeout 15000
masterauth "****"
requirepass "****"
3.启动
/home/test/redis/bin/redis-server /home/test/redis/7001/redis11.conf
/home/test/redis/bin/redis-server /home/test/redis/7002/redis12.conf
/home/test/redis/bin/redis-server /home/test/redis/7003/redis13.conf
4.检测
ps -el | grep redis
5.创建集群
/home/test/redis/bin/redis-trib.rb create --replicas 1 192.168.182.128:7001 192.168.182.128:7002 192.168.182.128:7003 192.168.182.129:7001 192.168.182.129:7002 192.168.182.129:7003
6.连接
/home/test/redis/bin/redis-cli -c -h 192.168.182.128 -p $1 -a ****
三.sentinel
1.配置
bind 192.168.182.128
port 27001
daemonize yes
dir /tmp
sentinel monitor mymaster1 192.168.182.128 7001 2
sentinel monitor mymaster2 192.168.182.128 7002 2
sentinel monitor mymaster3 192.168.182.129 7001 2
sentinel down-after-milliseconds mymaster1 30000
sentinel down-after-milliseconds mymaster2 30000
sentinel down-after-milliseconds mymaster3 30000
sentinel parallel-syncs mymaster1 1
sentinel parallel-syncs mymaster2 1
sentinel parallel-syncs mymaster3 1
sentinel failover-timeout mymaster1 180000
sentinel failover-timeout mymaster2 180000
sentinel failover-timeout mymaster3 180000
2.启动
/home/test/redis/bin/redis-sentinel /home/test/redis/sentinel/sentinel.conf
3.检查
ps -el | grep sentinel
四.redis集群增减节点/迁移slots
1.新增主节点
redis-trib.rb add-node 192.168.182.130:7001 192.168.182.128:7001
2.新增从节点
redis-trib.rb add-node –-slave 192.168.182.130:7003 192.168.182.128:7001
redis-trib.rb add-node –-slave 192.168.182.130:7002 192.168.182.128:7001
3.密码
//使密码失效
CONFIG SET masterauth ""
CONFIG SET requirepass ""
config rewrite
//添加密码
CONFIG SET masterauth ****
CONFIG SET requirepass ****
config rewrite
4.迁移solt
./redis-trib.rb reshard 192.168.182.128:7001
填入迁移solt个数
填入接收节点
填入源节点
done
5.将主节点变更为从节点
CLUSTER REPLICATE 35eeecb262bd3c6a5537d46c337df12022bb55c9 //将当前节点变更为node_id指定节点的从节点
6.检查集群
./redis-trib.rb check 192.168.182.128:7001
