Redis避免以后AOF再次损坏的预防措施

systemctl stop redis

cd /var/lib/redis/appendonlydir
cp appendonly.aof.1.incr.aof appendonly.aof.1.incr.aof.bak
redis-check-aof --fix appendonly.aof.1.incr.aof

aof-load-corrupt-tail-max-size 830

systemctl start redis

# 核心：不要用always（太耗性能），也别用no（极易坏文件）
appendfsync everysec

# 断电/强制关机时，减少aof损坏概率
no-appendfsync-on-rewrite no

auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb

# 轻微损坏允许启动，截断错误尾段
aof-load-corrupt-tail-max-size 1024
aof-trim-corrupt-tail yes

aof-use-rdb-preamble no

# 定时快照
save 60 1000
dbfilename dump.rdb
dir /var/lib/redis

systemctl stop redis
# 或
redis-cli shutdown

# 检查aof是否异常
redis-check-aof /var/lib/redis/appendonlydir/*.aof

# 批量修复所有aof
redis-check-aof --fix /var/lib/redis/appendonlydir/*aof
# 查看redis运行+持久化状态
redis-cli info persistence

# ========== 持久化核心配置（直接生效） ==========
# 开启aof
appendonly yes

# aof文件独立目录，方便维护
appendonlydir /var/lib/redis/appendonlydir

# 刷盘策略：折中最稳，不易坏文件
appendfsync everysec

# 后台重写时不阻塞刷盘
no-appendfsync-on-rewrite no

# 关闭混合aof（redis7+ 损坏高发根源，必关）
aof-use-rdb-preamble no

# aof自动重写，防止文件过大、碎片错乱
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb

# 容忍轻微aof尾部损坏，启动不挂
aof-load-corrupt-tail-max-size 1024
aof-trim-corrupt-tail yes

# ========== rdb 快照兜底（双保险） ==========
save 60 10
save 300 100
save 3600 1000

# rdb文件目录&名称
dir /var/lib/redis
dbfilename dump.rdb

# 快照出错也允许启动
stop-writes-on-bgsave-error no

# 压缩&校验，保证文件完整性
rdbcompression yes
rdbchecksum yes

systemctl stop redis

vi /etc/redis/redis.conf

mkdir -p /var/lib/redis/appendonlydir
chown -r redis:redis /var/lib/redis
chmod 700 /var/lib/redis/appendonlydir

systemctl start redis
systemctl status redis