打开 RDB 文件失败...只读文件系统

我正在尝试在我的 redis 实例上执行保存或 bgsave 以运行备份/恢复过程。但是，当我尝试保存时出现错误：

532:M 28 Jun 23:58:30.396 # Failed opening the RDB file backup.rdb (in server root dir /var/lib/redis) for saving: Read-only file system

权限/var/lib/redis folder:

$@/var/lib$ ls -artl | grep redis
drwxrwxrwx  3 redis    redis    4096 Jun 28 23:58 redis

权限/var/lib folder:

$@/var$ ls -artl | grep lib
drwxrwxrwx 31 root root  4096 Jun 28 23:44 lib

权限/var folder:

$@/$ ls -artl | grep var
drwxrwxrwx  11 root root  4096 Jul 18  2016 var

Redis CLI 输出config get dir:

1) "dir"
2) "/var/lib/redis"

Redis CLI 输出config get dbfilename:

1) "dbfilename"
2) "backup.rdb"

来自redis的错误：

532:M 28 Jun 23:58:30.396 # Failed opening the RDB file backup.rdb (in server root dir /var/lib/redis) for saving: Read-only file system

任何帮助将非常感激！

您需要将以下内容添加到 /etc/systemd/system/redis-server 单元文件中：

ReadWriteDirectories=-/var/lib/redis

注意/var/lib/redis是默认值，但如果在你的/etc/redis/redis.conf你设置了一个不同的dir配置选项，您需要设置ReadWriteDirectories对此。