Redis

Persistence

Configure RDB snapshots and AOF append logs.

By EZ4Code TeamLast updated: 2026-08-01

persistencerdbaof

Code

# redis.conf - RDB snapshots
save 900 1       # 1 change in 900s
save 300 10      # 10 changes in 300s
save 60  10000
dbfilename dump.rdb
dir /var/lib/redis

# AOF (Append Only File)
appendonly yes
appendfilename "appendonly.aof"
appendfsync everysec    # always | everysec | no

# Manual commands
BGSAVE                 # async RDB snapshot
BGREWRITEAOF           # compact AOF
LASTSAVE               # timestamp of last save
DEBUG OBJECT key       # internal info

# Mixing RDB + AOF gives best durability + recovery speed
# aof-use-rdb-preamble yes  (RDB prefix in AOF)

Explanation

Redis offers two persistence strategies: RDB snapshots for compact point-in-time backups and AOF for a log of every write command. RDB restarts faster, while AOF (with appendfsync everysec) loses at most one second of data. Combining both gives durability and fast recovery.

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