Redis Open Persistence

The persistence of Redis has two types of RDB and aof.
An RDB is a record of operations over a period of time, and a set of configurations is persistent over many times over a period of time.
AoF can be persisted for each operation.
Here we use AOF.

Configuration, open the Redis configuration file. Find AppendOnly. The default is AppendOnly No. Change to appendonly yes.
and find Appendfsync.
The default is:

# Appendfsync always   #每次收到写命令就立即强制写入磁盘, slowest, but guaranteed full persistence, not recommended for Appendfsync everysec     #每秒钟强制写入磁盘一次, Good compromise in performance and persistence, recommended # Appendfsync no    #完全依赖os, best performance, no guarantee of durability

--The default is persisted per second.
-in fact, change the appendonly is OK.

Redis Open Persistence