在Linux上重新启动后如何配置Redis以保留数据？

Question

I installed Redis on Ubuntu 16.04. I couldn't find Redis directory nor redis.conf file (tried with: sudo find redis.conf ).

My application depends on some data pulled from third party APIs. I store the (processed) data in Redis. My problem is, after reboot I lose the data. I guess I need to specify in config file that the data should be persisted on reboot, but I couldn't find the config file. Do I need to create the config file? Are there some templates to use? My goal is just to have the data persisted after reboot.

Thank you!

Answer 1

Use dpkg -L | grep redis.conf dpkg -L | grep redis.conf to find config file path. It should be located at /etc/redis/redis.conf as I know.

Redis has 2 methods for persistense: Snapshotting and Append-only file :

• Snapshotting will be enabled by adding (or uncommenting) save XY in config file. It means Redis will automatically dump the dataset to disk every X seconds if at least Y keys changed. There could be more than one save options in config file.

• Append-only file will be enabled by adding (or uncommenting) appendonly yes in config file

Answer 2

you should turn on the rdb or aof.

see https://redis.io/topics/persistence

Answer 3

Add this to the config file.

appendonly yes

This will append data as you store new data. This enables durability.