Redis 3.2.8 集群模式+Sentinel多Master部署

淡淡的烟草味﹌ 2023-10-11 10:51 71阅读 0赞

环境准备  
CentOS 7.3  
redis1 172.18.1.101:7001 master  
redis2 172.18.1.102:7002 master  
redis3 172.18.1.103:7003 master  
redis4 172.18.1.104:7004 slave  
redis5 172.18.1.105:7005 slave  
redis6 172.18.1.106:7006 slave

停止防火墙（有可能还需要iptables加规则）  
systemctl stop firewalld.service  
systemctl disable firewalld.service

修改内核参数  
vi /etc/sysctl.conf  
vm.overcommit\_memory = 1

查看效果  
sysctl -p

安装必要的软件包  
yum -y install gcc automake autoconf libtool make telnet ruby-devel ruby-irb ruby-libs ruby-rdoc ruby rubygems-devel rubygems  
gem install redis \#忘了这一步会导致使用redis-trib.rb创建集群的时候报错

编译安装Redis  
cd ~  
wget http://download.redis.io/releases/redis-3.2.8.tar.gz  
tar -zxf redis-3.2.8.tar.gz;cd redis-3.2.8;make  
make install PREFIX=/usr/local/redis  
mkdir /usr/local/redis/etc;mkdir /usr/local/redis/db;cp redis.conf /usr/local/redis/etc/;cp ./src/redis-trib.rb /usr/local/redis/bin/

修改配置文件，密码为password  
vi /usr/local/redis/etc/redis.conf

\#bind 127.0.0.1 \#这里注释掉，否则会导致其它节点无法与本节点通信  
protected-mode yes  
port 7001 \#不同机器端口不一样，我们用7001-7006 \#如果用一样的端口，创建集群会出问题  
daemonize yes  
pidfile /var/run/redis\_7001.pid \#不同机器PID文件不一样，我们用7001-7006 \#可以用同一个，但是为了统一还是建议改成不同的  
logfile "/var/log/redis.log"  
dir /usr/local/redis/db/  
masterauth password  
requirepass password  
appendonly yes  
cluster-enabled yes  
cluster-config-file nodes-7001.conf \#不同机器nodes.conf文件不一样，我们用7001-7006 \#原因同pidfile  
cluster-node-timeout 15000

启动Redis测试能否正常启动，注意看一下端口  
/usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf

备份Redis配置文件，未来如果改了其他设置除了问题，可以留作比对  
cp -p redis.conf redis.conf.bak

查看日志  
tail -100f /var/log/redis.log

修改ruby脚本，否则无法创建集群  
vi /usr/local/share/gems/gems/redis-3.3.3/lib/redis/client.rb  
修改DEFAULTS里面的password一项，我们这里用的是"password"，一定要加引号

创建集群，这里一定要用IP和端口，不能用hostname  
/usr/local/redis/bin/redis-trib.rb create --replicas 1 172.18.1.101:7001 172.18.1.102:7002 172.18.1.103:7003 172.18.1.104:7004 172.18.1.105:7005 172.18.1.106:7006

查看哪些Redis实例被定为Master  
/usr/local/redis/bin/redis-cli -h 127.0.0.1 -p 7001  
cluster nodes

拷贝sentinel.conf到etc下  
cp /root/redis-3.2.8/sentinel.conf /usr/local/redis/etc

编辑sentinel.conf  
vi /usr/local/redis/etc/sentinel.conf

protected-mode no  
port 27001 \#不同Sentinel端口不一样，我们用27001-27003

sentinel monitor mymaster1 172.18.1.101 7001 2  
sentinel monitor mymaster2 172.18.1.102 7002 2  
sentinel monitor mymaster3 172.18.1.103 7003 2

sentinel down-after-milliseconds mymaster1 10000  
sentinel down-after-milliseconds mymaster2 10000  
sentinel down-after-milliseconds mymaster3 10000

sentinel parallel-syncs mymaster1 1  
sentinel parallel-syncs mymaster2 1  
sentinel parallel-syncs mymaster3 1

sentinel failover-timeout mymaster1 15000  
sentinel failover-timeout mymaster2 15000  
sentinel failover-timeout mymaster3 15000

daemonize yes  
logfile "/var/log/sentinel.log"

备份Sentinel配置文件，未来如果改了其他设置除了问题，可以留作比对  
cp -p sentinel.conf sentinel.conf.bak

启动Sentinel  
/usr/local/redis/bin/redis-sentinel /usr/local/redis/etc/sentinel.conf

常用命令  
ps -ef | grep redis  
tail -100f /var/log/redis.log  
tail -100f /var/log/sentinel.log  
/usr/local/redis/bin/redis-cli -h 172.18.1.101 -p 7001 -a password  
kill $(ps -ef | grep redis | grep -v grep | awk '\{print $2\}')

转载于:https://www.cnblogs.com/Cratical/p/6811245.html