redis3.2.4 集群安装详细步骤

集群简介

Redis集群部署文档(centos6.4系统)

（要让集群正常工作至少需要3个主节点，在这里我们要创建6个redis节点，其中三个为主节点，三个为从节点，对应的redis节点的ip和端口对应关系如下）

192.168.66.2:6379
192.168.66.2:6380
192.168.66.3:6379
192.168.66.3:6380
192.168.66.4:6379
192.168.66.5:6380

软件下载安装

下载redis：官网下载3.2.4版本。

3.2.4 下载地址

其它版本下载地址

上传服务器、解压、编译

解压编译

tar -zxvf redis-3.2.4-rc2.tar.gz
mv redis-3.2.4-rc2.tar.gz redis3.0
cd /usr/local/redis3.0
make
make install

# 复制 redis-trib.rb 到 /usr/local/bin

cp /opt/tools/redis-3.2.4/src/redis-trib.rb /usr/local/bin/

报错解决

yum install -y gcc g++ gcc-c++

创建所需要的目录

cd /opt/tools/
mkdir redis-cluster
cd redis-cluster
mkdir 6379
mkdir 6380

修改配置文件：

复制 redis.conf 文件

cp redis-3.2.4/redis.conf redis-cluster/6379

修改 文件的如下内容：

#进程端口

port 6379

#进程id文件存放位置

pidfile /var/run/redis-6379.pid

#绑定机器配置

bind 192.168.66.2

#日志文件存放位置

logfile /opt/tools/redis-cluster/6379/redis.log

#数据备份文件存放位置

dir /opt/tools/redis-cluster/6379

#是否是追加

appendonly yes

#是否开启分布式

cluster-enabled yes

#集群配置文件

cluster-config-file /opt/tools/redis-cluster/6379/nodes.conf

拷贝文件到其他几台机器

# 拷贝redis-server、redis-client...

scp -r /usr/local/bin/* root@192.168.66.3:/usr/local/bin/

# 拷贝配置文件

scp -r /opt/tools/redis-cluster root@192.168.66.3:/opt/tools/

# 拷贝redis-server、redis-client...

scp -r /usr/local/bin/* root@192.168.66.4:/usr/local/bin/

# 拷贝配置文件

scp -r /opt/tools/redis-cluster root@192.168.66.4:/opt/tools/

编写集群启动脚本redisStart.sh（集群启动脚本需要各个机器之间设置 ssh 免认证登录）

#!/bin/bash

#声明服务器：

server2=192.168.66.2
server3=192.168.66.3
server4=192.168.66.4

# 1.删除进程

# 本地

ps -ef | grep 6379 | grep -v grep | awk  '{print $2}' | xargs  kill -9
ps -ef | grep 6380 | grep -v grep | awk  '{print $2}' | xargs  kill -9

ssh root@$server3 "ps -ef | grep 6379 | grep -v grep | awk  '{print $2}' | xargs  kill -9"
ssh root@$server3 "ps -ef | grep 6380 | grep -v grep | awk  '{print $2}' | xargs  kill -9"

ssh root@$server4 "ps -ef | grep 6379 | grep -v grep | awk  '{print $2}' | xargs  kill -9"
ssh root@$server4 "ps -ef | grep 6380 | grep -v grep | awk  '{print $2}' | xargs  kill -9"

# 2.删除文件

# 本地

rm -rf /opt/tools/redis-cluster/6379/appendonly.aof
rm -rf /opt/tools/redis-cluster/6379/dump.rdb
rm -rf /opt/tools/redis-cluster/6379/nodes.conf

rm -rf /opt/tools/redis-cluster/6380/appendonly.aof
rm -rf /opt/tools/redis-cluster/6380/dump.rdb
rm -rf /opt/tools/redis-cluster/6380/nodes.conf

# 12

ssh root@$server3 "rm -rf /opt/tools/redis-cluster/6379/appendonly.aof"
ssh root@$server3 "rm -rf /opt/tools/redis-cluster/6379/dump.rdb"
ssh root@$server3 "rm -rf /opt/tools/redis-cluster/6379/nodes.conf"

ssh root@$server3 "rm -rf /opt/tools/redis-cluster/6380/appendonly.aof"
ssh root@$server3 "rm -rf /opt/tools/redis-cluster/6380/dump.rdb"
ssh root@$server3 "rm -rf /opt/tools/redis-cluster/6380/nodes.conf"

# 13

ssh root@$server4 "rm -rf /opt/tools/redis-cluster/6379/appendonly.aof"
ssh root@$server4 "rm -rf /opt/tools/redis-cluster/6379/dump.rdb"
ssh root@$server4 "rm -rf /opt/tools/redis-cluster/6379/nodes.conf"

ssh root@$server4 "rm -rf /opt/tools/redis-cluster/6380/appendonly.aof"
ssh root@$server4 "rm -rf /opt/tools/redis-cluster/6380/dump.rdb"
ssh root@$server4 "rm -rf /opt/tools/redis-cluster/6380/nodes.conf"

# 3.启动进程

# 本地

/usr/local/bin/redis-server /opt/tools/redis-cluster/6379/redis.conf
/usr/local/bin/redis-server /opt/tools/redis-cluster/6380/redis.conf

#12

ssh root@$server3 "/usr/local/bin/redis-server /opt/tools/redis-cluster/6379/redis.conf"
ssh root@$server3 "/usr/local/bin/redis-server /opt/tools/redis-cluster/6380/redis.conf"

#13

ssh root@$server4 "/usr/local/bin/redis-server /opt/tools/redis-cluster/6379/redis.conf"
ssh root@$server4 "/usr/local/bin/redis-server /opt/tools/redis-cluster/6380/redis.conf"

#启动集群

redis-trib.rb create --replicas 1 $server2:6379 $server2:6380 $server3:6379 $server3:6380 $server4:6379 $server4:6380

启动集群

./redisStart.sh

报错解决

错误内容：/usr/bin/env: ruby: No such file or directory

yum install ruby

错误内容：./redis-trib.rb:24:in `require’: no such file to load – rubygems (LoadError) from ./redis-trib.rb:24

yum install rubygems

错误内容：

/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- redis (LoadError)
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from ./redis-trib.rb:25

安装缺少软件并指定版本（版本很重要，版本不对导致无法启动）：

gem install redis -v 3.2.2

再次执行第7步的命令，正常执行!



输入yes，然后配置完成，至此redis集群即搭建成功！



11. 使用redis-cli命令进入集群环境

redis-cli -h 192.168.66.2 -c -p 6379