一、主从配置:
1、下载:
wget http://download.redis.io/releases/redis-4.0.9.tar.gz
tar xzf redis-4.0.9.tar.gz
cd redis-4.0.9.tar.gz
make
cd src/
make install
mkdir -p /usr/local/redis/etc
cd ../
cp -a redis.conf /usr/local/redis/etc
2、创建用户:
groupadd redis
useradd -g redis redis -s /sbin/nologin
3、修改配置文件:
主修改的配置:
sed -i "s#bind 127.0.0.1#bind 0.0.0.0#g" redis.conf
sed -i "s#daemonize no#daemonize yes#g" redis.conf
sed -i "s#protected-mode yes#protected-mode no#g" redis.conf
sed -i "s@# requirepass foobared@requirepass 123456@g" redis.conf
sed -i "s#port 6379#port 16379#g" redis.conf
sed -i "s#pidfile /var/run/redis_6379.pid#pidfile /usr/local/redis_16379.pid#g" redis.conf
从修改的配置:
sed -i "s#bind 127.0.0.1#bind 0.0.0.0#g" redis.conf
sed -i "s#daemonize no#daemonize yes#g" redis.conf
sed -i "s#protected-mode yes#protected-mode no#g" redis.conf
sed -i "s@# requirepass foobared@requirepass 123456@g" redis.conf
sed -i "s#port 6379#port 16380#g" redis.conf
sed -i "s#pidfile /var/run/redis_6379.pid#pidfile /usr/local/redis_16380.pid#g" redis.conf
sed -i "s@# slaveof <masterip> <masterport>@slaveof 192.168.1.125 16379@g" redis.conf
sed -i "s@# masterauth <master-password>@masterauth 123456@g" redis.conf
4、修改目录权限:
chown -R redis:redis /usr/local/redis
5、以redis用户启动redis进程:
sudo -u redis /usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf
6、验证:
连接master:
./redis-cli -p 16379 -a 123456
127.0.0.1:16379> info
127.0.0.1:16379> set name abc
OK
127.0.0.1:16379> get name
"abc"
连接slave验证:
./redis-cli -p 16380 -a 123456
127.0.0.1:16380> get name
"abc"
二:数据的备份与还原
1、进入redis客户端:
127.0.0.1:16379> set game wow
OK
127.0.0.1:16379> get game
"wow"
启动备份:
127.0.0.1:16379> save
或
127.0.0.1:16379> bgsave #启动一个子进程,在后台备份
2、获取备份的目录所在:
127.0.0.1:16379> CONFIG GET dir
1) "dir"
2) "/usr/local/redis"
3、停止redis服务,将备份的文件放在上面查到的目录中,然后启动Redis:
sudo -u redis /usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf
4、验证:
进入客户端:
./redis-cli -p 16379 -a 123456
127.0.0.1:16379> get game
"wow"
报错:
127.0.0.1:16379> save
(error) ERR
可能是因为你目录没有设置对,注意权限问题。重新设置目录即可