无法打开RDB文件...只读文件系统

Question

我正在尝试在我的redis实例上执行save或bgsave以运行备份/恢复过程.我尝试保存时遇到错误:

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

/var/lib/redis文件夹的权限:

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

/var/lib文件夹的权限:

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

/var文件夹的权限:

$@/$ 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!

Answer 1

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

请注意,这/var/lib/redis是默认设置,但如果您/etc/redis/redis.conf在其中设置了不同的dir配置选项,则需要设置ReadWriteDirectories为该选项.

Answer 2

错误显示只读文件系统 因此，请检查文件系统的挂载（/或/var），如果是只读，请以rw模式（读写模式）重新挂载FS。挂载前请备份重要数据。