redis主从切换,redis主从
redis主从切换1、停止主redis
[root@repl1 home]# /usr/local/redis/bin/redis-cli -n 6379 shutdown
[root@repl1 home]# /usr/local/redis/bin/redis-cli -p 6379
Could not connect to Redis at 127.0.0.1:6379: Connection refused
not connected>
2、将从redis设成主redis
[root@repl2 home]# /usr/local/redis/bin/redis-cli
127.0.0.1:6379> slaveof NO ONE
3、测试从redis是否切换从主redis
[root@repl2 home]# /usr/local/redis/bin/redis-cli
127.0.0.1:6379> set name 123
OK
127.0.0.1:6379> get name
"123"
127.0.0.1:6379>info
4、原来的主redis恢复正常了,要重新切换回去
1)将现在的主redis的数据进行保存
[root@repl2 home]# /usr/local/redis/bin/redis-cli
127.0.0.1:6379> get name1
"abc"
127.0.0.1:6379> save
OK
127.0.0.1:6379> get name1
"abc"
2)将现在的主redis根目录下dump.rdb文件拷贝覆盖到原来主redis的根目录
3)启动原来的主redis
/usr/local/redis/bin/redis-server /user/local/redis/etc/redis.conf
4)在现在的主redis中切换
[root@repl2 home]# /usr/local/redis/bin/redis-cli
127.0.0.1:6379>slaveof 192.168.10.1 6379
OK
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