redis 数据导入导出，实例内db迁移

源实例db0迁移至目标实例db1

1 [root@172.20.0.1 ~]# cat redis_mv.sh
2 #!/bin/bash
3 redis-cli -h 172.20.0.1 -p 6379 -a password -n 0 keys "*" | while read key
4 do
5     redis-cli -h 172.20.0.1 -p 6379 -a password -n 0 --raw dump $key | perl -pe 'chomp if eof' | redis-cli -h 172.20.0.2 -p 6379 -a password -n 1 -x restore $key 0
6     echo "migrate key $key"
7 done

aof导入方式：

1.源实例生成aof数据

1 # 清空上文目标实例全部数据
2 [root@172.20.0.1 ~]# redis-cli -h 172.20.0.2 -a password flushall
3 OK
4 # 源实例开启aof功能，将在dir目录下生成appendonly.aof文件
5 [root@172.20.0.1 ~]# redis-cli -h 172.20.0.1 -a password config set appendonly yes
6 OK

2.目标实例导入aof数据

1 # 假设appendonly.aof就在当前路径下
2 [root@172.20.0.1 ~]# redis-cli -h 172.20.0.2 -a password --pipe < appendonly.aof
3 All data transferred. Waiting for the last reply...
4 Last reply received from server.
5 errors: 0, replies: 5
6 # 源实例关闭aof功能
7 [root@172.20.0.1 ~]# redis-cli -h 172.20.0.1 -a password config set appendonly no
8 OK