1. Redis recovery mechanism

• If only AOF is configured, load the AOF file to restore data when restarting;

• If RDB and AOF are configured at the same time, the startup will only load the AOF file to restore the data;

• If only RDB is configured, the startup will load the dump file to restore the data.

2. Recover data from aof

1 Note the following configuration

appendonly yes
dir /home/redis/data_6379/

2 Copy the AOF file to the Redis data directory

cp appendonly.aof /home/redis/data_6379/

3 Start redis-server

redis-server redis_6379.conf

3. Restoring data from RDB files

1 Note the following configuration

appendonly no
dir /home/redis/data_6379/

2 Copy the RDB file to the Redis data directory

cp dump.db /home/redis/data_6379/

3 Start redis-server

redis-server redis_6379.conf

Use the redis-port tool to synchronize the self-built redis rdb file to ApsaraDB for it

download redis-port

redis-port address

Example of use

1. ./redis-port restore --input=x/dump.rdb --target=dst_host:dst_port --auth=dst_password [--filterkey="str1|str2|str3"] [--targetdb=DB] [--rewrite] [--bigkeysize=SIZE] [--logfile=REDISPORT.LOG]

Parameter Description

• x/dump.rdb : path to dump file of self-built redis

• dst_host : ApsaraDB for redis domain name

• dst_port : ApsaraDB for redis port

• dst_password : ApsaraDB for redis password

• str1|str2|str3 : filter keys with str1 or str2 or str3

• DB : the DB that will be synchronized into ApsaraDB for redis

• rewrite : overwrite the already written key

• bigkeysize=SIZE : When the written value is larger than SIZE, go to the big key writing mode

View the data synchronization status according to the redis-port log

restore: rdb doneData synchronization is complete when presented .

Reference article: https://help.aliyun.com/document_detail/66008.html