redis集群

redis集群

下载安装包

cluster.tar.gz

wget http://130.10.7.123/cluster.tar.gz tar -xvzf cluster.tar.gz
cd cluster

安装redis-trib依赖环境

安装zlib

解压

zlib-1.2.7.tar.gz

文件，安装

tar -xvzf zlib-1.2.7.tar.gz
cd zlib-1.2.7
rpm -Uvh --oldpackage *.rpm
cd ..

安装ruby
解压

ruby-2.4.0.tar.gz

文件，安装

tar -xvzf ruby-2.4.0.tar.gz
cd ruby-2.4.0
./configure --prefix=/usr/local
make && make install
cd ..

安装gem管理
解压

rubygems-2.6.8.tar.gz

文件，安装

tar -xzvf rubygems-2.6.8.tar.gz
cd rubygems-2.6.8
ruby setup.rb --no-rdoc --no-ri
cd ..

通过gem安装redis插件
安装

redis-3.2.2.gem

gem install redis-3.2.2.gem --local --no-rdoc --no-ri

启动集群

进入redis目录执行命令

src/redis-trib.rb create 130.10.7.243:6379 130.10.7.244:6379 130.10.7.245:6379

出现提示

Can I set the above configuration? (type 'yes' to accept):

输入yes回车。启动成功提示

[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

简单测试

[root@server1 redis-3.2.5]# src/redis-cli -c -h 130.10.7.243
130.10.7.243:6379> set foo bar
-> Redirected to slot [12182] located at 130.10.7.245:6379
OK
130.10.7.245:6379> set hello world
-> Redirected to slot [866] located at 130.10.7.243:6379
OK
130.10.7.243:6379> get foo
-> Redirected to slot [12182] located at 130.10.7.245:6379
"bar"
130.10.7.245:6379> get hello
-> Redirected to slot [866] located at 130.10.7.243:6379
"world"

其他命令

查看节点

src/redis-cli -c -h 130.10.7.243 cluster nodes

设置replicate

src/redis-cli -c -h 130.10.7.243 cluster replicate <master-id>

增加节点

src/redis-trib.rb add-node 130.10.7.246:6379 130.10.7.243:6379

增加从节点

src/redis-trib.rb add-node --slave --master-id <master-id> 130.10.7.246:6379 130.10.7.243:6379

Resharding

src/redis-trib.rb reshard 130.10.7.243

槽指派

src/redis-cli -c -h 130.10.7.243 cluster addslots {0...5000}

状态查看

src/redis-trib.rb check 130.10.7.243