master-slave replication
2024-10-07 08:53:21
redis save 备份 恢复
root@ubuntu:/etc/init.d# find / -name dump.rdb |xargs ls -alt
redis-cli save
cp /var/lib/redis/dump.rdb /var/lib/redis/BEFOREdump.rdb
redis-cli flushall
./redis-server stop
cp /var/lib/redis/BEFOREdump.rdb /var/lib/redis/dump.rdb
root@ubuntu:/etc/init.d# find / -name dump.rdb |xargs ls -alt
-rw-r--r-- redis redis May : /var/lib/redis/dump.rdb
-rw-r--r-- root root May : /etc/redis/dump.rdb
-rw-r--r-- root root May : /etc/init.d/dump.rdb
-rw-rw-r-- wuser wuser May : /home/wuser/dump.rdb
-rw-r--r-- root root May : /dump.rdb
root@ubuntu:/etc/init.d# redis-cli
127.0.0.1:> keys
(error) ERR wrong number of arguments for 'keys' command
127.0.0.1:> keys *
(empty list or set)
127.0.0.1:> set w2
OK
127.0.0.1:> set w2d
OK
127.0.0.1:> save
OK
127.0.0.1:> exit
root@ubuntu:/etc/init.d# find / -name dump.rdb |xargs ls -alt
-rw-r--r-- redis redis May : /var/lib/redis/dump.rdb
-rw-r--r-- root root May : /etc/redis/dump.rdb
-rw-r--r-- root root May : /etc/init.d/dump.rdb
-rw-rw-r-- wuser wuser May : /home/wuser/dump.rdb
-rw-r--r-- root root May : /dump.rdb
root@ubuntu:/etc/init.d# cp /var/lib/redis/dump.rdb /var/lib/redis/BEFOREdump.rdb
root@ubuntu:/etc/init.d# redis-cli
127.0.0.1:> KEYS *
) "w2d"
) "w2"
127.0.0.1:> flushall
OK
127.0.0.1:> exit
root@ubuntu:/etc/init.d# find / -name dump.rdb |xargs ls -alt
-rw-r--r-- redis redis May : /var/lib/redis/dump.rdb
-rw-r--r-- root root May : /etc/redis/dump.rdb
-rw-r--r-- root root May : /etc/init.d/dump.rdb
-rw-rw-r-- wuser wuser May : /home/wuser/dump.rdb
-rw-r--r-- root root May : /dump.rdb
root@ubuntu:/etc/init.d# redis-cli
127.0.0.1:> keys *
(empty list or set)
127.0.0.1:> exit
root@ubuntu:/etc/init.d# ./redis-server stop
[ ok ] Stopping redis-server (via systemctl): redis-server.service.
root@ubuntu:/etc/init.d# cp /var/lib/redis/BEFOREdump.rdb /var/lib/redis/dump.rdb
root@ubuntu:/etc/init.d# ./redis-server start
[ ok ] Starting redis-server (via systemctl): redis-server.service.
root@ubuntu:/etc/init.d# redis-cli
127.0.0.1:> keys *
) "w2"
) "w2d"
127.0.0.1:> exit
root@ubuntu:/etc/init.d# find / -name dump.rdb |xargs ls -alt
-rw-r--r-- redis redis May : /var/lib/redis/dump.rdb
-rw-r--r-- root root May : /etc/redis/dump.rdb
-rw-r--r-- root root May : /etc/init.d/dump.rdb
-rw-rw-r-- wuser wuser May : /home/wuser/dump.rdb
-rw-r--r-- root root May : /dump.rdb
root@ubuntu:/etc/init.d#
w
https://redis.io/topics/replication
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