redis-cluster安装
redis cluster集群安装---仅作参考
当前安装的redis集群为
db1：172.20.3.81
db2：172.20.3.82
db3：172.20.3.83
实现目标，cluster集群三台6几点，3主3从高可用集群，具体逻辑和原理请参考官方文档
1.下载对应的redis安装包--（官网下载对应的源码版本）
mkdir /application -p && cd /application
wget http://download.redis.io/releases/redis-3.2.9.tar.gz #复制到另外2台上，按照自己的版本来
scp redis-3.2.9.tar.gz 172.20.3.82:/application/
scp redis-3.2.9.tar.gz 172.20.3.83:/application/
2.编译
yum -y install gcc automake autoconf libtool make
tar zxf redis-3.2.9.tar.gz -C /opt/redis_cluster/
ln -s /opt/redis_cluster/redis-3.2.9/ /opt/redis_cluster/redis
cd /opt/redis_cluster/redis
make && make install
3.db1 操作
mkdir -p /opt/redis_cluster/redis_{6380,6381}/{conf,logs,pid}
mkdir -p /data/redis_cluster/redis_{6380,6381}
cat >/opt/redis_cluster/redis_6380/conf/redis_6380.conf<<EOF
bind 172.20.3.81
port 6380
daemonize yes
pidfile "/opt/redis_cluster/redis_6380/pid/redis_6380.pid"
logfile "/opt/redis_cluster/redis_6380/logs/redis_6380.log"
dbfilename "redis_6380.rdb"
dir "/data/redis_cluster/redis_6380/"
cluster-enabled yes
cluster-config-file nodes_6380.conf
cluster-node-timeout 15000
EOF
cd /opt/redis_cluster/
cp redis_6380/conf/redis_6380.conf redis_6381/conf/redis_6381.conf
sed -i 's#6380#6381#g' redis_6381/conf/redis_6381.conf
rsync -avz /opt/redis_cluster/redis_638* 172.20.3.82:/opt/redis_cluster/
rsync -avz /opt/redis_cluster/redis_638* 172.20.3.83:/opt/redis_cluster/
redis-server /opt/redis_cluster/redis_6380/conf/redis_6380.conf
redis-server /opt/redis_cluster/redis_6381/conf/redis_6381.conf
- db2操作
#按照自己的ip地址替换
find /opt/redis_cluster/redis_638* -type f -name "*.conf"|xargs sed -i "/bind/s#81#82#g"
mkdir -p /data/redis_cluster/redis_{6380,6381}
redis-server /opt/redis_cluster/redis_6380/conf/redis_6380.conf
redis-server /opt/redis_cluster/redis_6381/conf/redis_6381.conf
- db3操作
#按照自己的ip地址替换
find /opt/redis_cluster/redis_638* -type f -name "*.conf"|xargs sed -i "/bind/s#81#83#g"
mkdir -p /data/redis_cluster/redis_{6380,6381}
redis-server /opt/redis_cluster/redis_6380/conf/redis_6380.conf
redis-server /opt/redis_cluster/redis_6381/conf/redis_6381.conf
6.至此6个redis 实例已启动完毕，需自行确认 ps -ef |grep redis 进行确认
7.cluster集群发现
redis-cli -h 172.20.3.81 -p 6380 CLUSTER MEET 172.20.3.81 6381
redis-cli -h 172.20.3.81 -p 6380 CLUSTER MEET 172.20.3.82 6380
redis-cli -h 172.20.3.81 -p 6380 CLUSTER MEET 172.20.3.82 6381
redis-cli -h 172.20.3.81 -p 6380 CLUSTER MEET 172.20.3.83 6380
redis-cli -h 172.20.3.81 -p 6380 CLUSTER MEET 172.20.3.83 6381
8.分配槽位
redis-cli -h 172.20.3.81 -p 6380 CLUSTER ADDSLOTS {0..5461}
redis-cli -h 172.20.3.82 -p 6380 CLUSTER ADDSLOTS {5462..10923}
redis-cli -h 172.20.3.83 -p 6380 CLUSTER ADDSLOTS {10924..16383}
测试： redis-cli -h 172.20.3.81 -p 6380 CLUSTER INFO
redis-cli -h 172.20.3.81 -p 6380 CLUSTER nodes
redis-cli -c -h 172.20.3.81 -p 6380 set k1 v1
9.配置高可用
redis-cli -c -h db01 -p 6381 CLUSTER REPLICATE db02:6380的ID
redis-cli -c -h db02 -p 6381 CLUSTER REPLICATE db03:6380的ID
redis-cli -c -h db03 -p 6381 CLUSTER REPLICATE db01:6380的ID
#下面为模拟实列，按照自身的情况来修改
[root@elk1 redis_cluster]# redis-cli -c -h 172.20.3.81 -p 6380 CLUSTER NODES
15d285dc3e314342537be32ce53fc8e2f75c9997 172.20.3.82:6381 master - 0 1622786086573 5 connected
f9b397188c3bd4b98609dc60c1ad93e68f32eb41 172.20.3.81:6380 myself,master - 0 0 0 connected 0-5461
12937a35f7f65082441f345bc2e3faaf407b70c4 172.20.3.83:6380 master - 0 1622786083101 2 connected 10924-16383
0d0cc2bc33f01ccdcb9dc1ce39ae546883142c11 172.20.3.82:6380 master - 0 1622786084125 3 connected 5462-10923
f39fc45d571497f06a8c72b575e8617adf5ef375 172.20.3.83:6381 master - 0 1622786085144 4 connected
68a7556d10f1e3157c4121d1c3db84e6cdd75ddc 172.20.3.81:6381 master - 0 1622786086167 1 connected
配置第一个slave
redis-cli -c -h 172.20.3.81 -p 6381 CLUSTER REPLICATE 0d0cc2bc33f01ccdcb9dc1ce39ae546883142c11
配置第二个slave
redis-cli -c -h 172.20.3.82 -p 6381 CLUSTER REPLICATE 12937a35f7f65082441f345bc2e3faaf407b70c4
配置第三个slave
redis-cli -c -h 172.20.3.83 -p 6381 CLUSTER REPLICATE f9b397188c3bd4b98609dc60c1ad93e68f32eb41
查看最终集群情况
[root@elk1 redis_cluster]# redis-cli -c -h 172.20.3.81 -p 6380 CLUSTER NODES
15d285dc3e314342537be32ce53fc8e2f75c9997 172.20.3.82:6381 slave 12937a35f7f65082441f345bc2e3faaf407b70c4 0 1622786448133 5 connected
f9b397188c3bd4b98609dc60c1ad93e68f32eb41 172.20.3.81:6380 myself,master - 0 0 0 connected 0-5461
12937a35f7f65082441f345bc2e3faaf407b70c4 172.20.3.83:6380 master - 0 1622786450174 2 connected 10924-16383
0d0cc2bc33f01ccdcb9dc1ce39ae546883142c11 172.20.3.82:6380 master - 0 1622786449153 3 connected 5462-10923
f39fc45d571497f06a8c72b575e8617adf5ef375 172.20.3.83:6381 slave f9b397188c3bd4b98609dc60c1ad93e68f32eb41 0 1622786445080 4 connected
68a7556d10f1e3157c4121d1c3db84e6cdd75ddc 172.20.3.81:6381 slave 0d0cc2bc33f01ccdcb9dc1ce39ae546883142c11 0 1622786447114 3 connected
