MySQL 数据库 - 从 webmin 访问时从存储引擎获取错误 28

Question

I am trying to access an MySQL database from the webmin console. But I'm unable to access the db, as it throws following error message:

SQL select table_schema,table_name from information_schema.views where table_schema = ? 
failed : Got error 28 from storage engine

How can I overcome this problem?

Answer 1

Check your disk space usage.

I also faced the same problem. I fixed by moving files into another disk.

If you are using Linux OS. You can check the disk usage by using the command:

> df -k

    Filesystem           1K-blocks      Used Available Use% Mounted on
    /dev/xvda1             8256952   7857928         0 100% /
    udev                    860884         4    860880   1% /dev
    tmpfs                   347492       188    347304   1% /run
    none                      5120         0      5120   0% /run/lock
    none                    868724         0    868724   0% /run/shm
    /dev/xvdb            350891748    199364 332868104   1% /mnt

And I moved some files from /dev/xvda1 -> /dev/xvdb partition.

And checked the disk usage.

> df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/xvda1             8256952   2520216   5317308  33% /
udev                    860884         4    860880   1% /dev
tmpfs                   347492       188    347304   1% /run
none                      5120         0      5120   0% /run/lock
none                    868724         0    868724   0% /run/shm
/dev/xvdb            350891748    415456 332652012   1% /mnt

Now MySQL server working fine.

Answer 2

Yes, it is a disk space problem, but it could by masquerade. I suggest open 2 consoles and run in one of them

watch -n1 "df -h"

and on the other try to reproduce the error, at the same time look at the first console. In my case /tmp was at 35% (1G), it goes to 100%, and when the command finish went back to 35%.

Answer 3

Actually in my own case, It was a masquerade. I host the site with Siteground, and when I used their SuperCacher to flush the system, everything started working again. I am just adding this answer for anyone in