redis三主机三主三从6节点集群部署
2022/4/1 19:19:33
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采用三主三从,6节点集群模式,版本5.0.9
下载redis-5.0.9,下载地址:链接:https://pan.baidu.com/s/1r4U1TJjvZMrwo6t9OH5qvQ 提取码:0poq
安装脚本如下,脚本是采用三主机,6节点模式,每台主机运行主从两个redis节点,端口分别是7001,7002(默认7001是主,7002是从)
#!/bin/bash echo "本地yum源是否配置完毕,是请忽略,否请按CTRL+C退出!" sleep 3 echo "自动化安装redis-5.0.9版本3台服务器集群:" read -p "请根据实际数据挂载盘输入redis-cluster安装的主目录(譬如/wls或是/data):" maindir echo "---使用3台机6节点的交叉部署模式,3台机均需执行该脚本---" if [ -f /root/redis-5.0.9.tar.gz ];then echo "系统内核参数优化!" echo never > /sys/kernel/mm/transparent_hugepage/enabled echo "net.core.somaxconn=551" >> /etc/sysctl.conf echo "vm.overcommit_memory=1" >> /etc/sysctl.conf sysctl -p dir=$maindir/redis-cluster mkdir -p $dir/bin yum -y install zlib-devel openssl-devel gcc-c++ echo "redis编译安装!" cd /root tar xf redis-5.0.9.tar.gz cd redis-5.0.9 make cd src cp redis-server redis-cli redis-check-aof redis-check-rdb redis-sentinel redis-benchmark $dir/bin echo "如有异常,请按CTRL+C退出!如正常,将继续执行下一步!" sleep 2 ip addr echo "redis5集群配置:" read -p "请输入本地内网IP地址(参考上面输出信息,非127.0.0.1):" ip read -p "请输入节点端口1(3台机一致):" port1 read -p "请输入节点端口2(3台机一致):" port2 read -p "请输入加密密码(3台机一致):" password echo "redis节点端口为:${port1}和${port2}" mkdir $dir/{$port1,$port2} cat >$dir/$port1/redis.conf <<EOF port $port1 daemonize yes bind $ip 127.0.0.1 dir $dir/$port1 pidfile $dir/$port1/redis.pid logfile $dir/$port1/redis.log cluster-enabled yes cluster-config-file nodes.conf cluster-node-timeout 15000 appendonly yes appendfsync everysec masterauth $password requirepass $password EOF cat >$dir/$port2/redis.conf <<EOF port $port2 daemonize yes bind $ip 127.0.0.1 dir $dir/$port2 pidfile $dir/$port2/redis.pid logfile $dir/$port2/redis.log cluster-enabled yes cluster-config-file nodes.conf cluster-node-timeout 15000 appendonly yes appendfsync everysec masterauth $password requirepass $password EOF echo "如有异常,请按CTRL+C退出!如正常,将继续执行下一步!" sleep 2 $dir/bin/redis-server $dir/$port1/redis.conf & $dir/bin/redis-server $dir/$port2/redis.conf & sleep 2 ps -ef|grep redis read -p "3台机6个redis节点是否已经全部安装并启动(是请输入"y"或者"Y",否请输入"n"或者"N"):" answer if [ "$answer" = y -o "$answer" = Y ];then read -p "是否创建redis集群?只需要在3台机中的任1台执行即可(是请输入"y"或者"Y",否请输入"n"或者"N"):" answer1 if [ "$answer1" = y -o "$answer1" = Y ];then read -p "请输入集群第1台机的IP:" ip1 read -p "请输入集群第2台机的IP:" ip2 read -p "请输入集群第3台机的IP:" ip3 echo "以下若出现交互,请输入yes并回车" sleep 2 $maindir/redis-cluster/bin/redis-cli -a $password --cluster create $ip1:$port1 $ip2:$port1 $ip3:$port1 --cluster-replicas 0 string1=$maindir/redis-cluster/bin/redis-cli -a $password --cluster check $ip1:$port1|grep " $ip1:$port1" 2>/dev/null|grep -v Performing |awk -F ' ' '{print $2}' string2=$maindir/redis-cluster/bin/redis-cli -a $password --cluster check $ip1:$port1|grep " $ip2:$port1" 2>/dev/null|grep -v Performing |awk -F ' ' '{print $2}' string3=$maindir/redis-cluster/bin/redis-cli -a $password --cluster check $ip1:$port1|grep " $ip3:$port1" 2>/dev/null|grep -v Performing |awk -F ' ' '{print $2}' $maindir/redis-cluster/bin/redis-cli -a $password --cluster add-node $ip2:$port2 $ip1:$port1 --cluster-slave --cluster-master-id $string1 $maindir/redis-cluster/bin/redis-cli -a $password --cluster add-node $ip3:$port2 $ip2:$port1 --cluster-slave --cluster-master-id $string2 $maindir/redis-cluster/bin/redis-cli -a $password --cluster add-node $ip1:$port2 $ip3:$port1 --cluster-slave --cluster-master-id $string3 echo "以下为集群创建后的最终状态信息:" $maindir/redis-cluster/bin/redis-cli -a $password --cluster check $ip1:$port1 echo "###已完成3台机6个redis节点的集群模式部署###" echo "注意:如果6个节点交叉分布在3台机(主主和主从节点均不在同1台出现),这样的话,挂掉其中任何1台服务器将不会影响集群使用,但是需要在机器恢复后,须把主节点还原回去,办法就是:停止新的主节点,此时新从节点会变成原先旧主节点,再开启刚刚关闭的节点,让其变成从节点。" else echo "退出集群创建!" fi else echo "请继续安装redis节点并启动!" exit 0 fi else echo "请把相应的包上传到/root目录,再进行下一步!" exit 0 fi
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