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Forum Discussion
BuckoA512
Aug 31, 2021Aspirant
MySQLDB will not start code 22002010000
Good morning everyone ReadyNAS 314 Firmare 6.10.5 Hotfix 1 Installed apps: MySQLDB 1.0.5 from ReadyNAS Xtras Nextcloud 20.0.1-rnx1 from ReadyNAS Xtras PHP7.4 from ReadyNAS Xtras PHPMyAdm...
BuckoA512
Aug 31, 2021Aspirant
Hi StephenB thank you for replying.
I've never had to ssh since my university days so I'm a little rusty on that to say the least.
No, it didn't happen right after I updated. Everything was working fine yesterday, then today this happens and MySQLDB won't start.
ReadyNAS Xtras has replied to me by e-mail too so I'll update if he can figure anything out.
BuckoA512
Aug 31, 2021Aspirant
It looks like the failure is down to a bad disk in the array, or so it seems from the logs. I didn't realise that downloading the logs gave you more information than you get on the web page.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: 2021-08-31 10:13:48 7fd324f26780 InnoDB: Error: Write to file ./nextcloud/oc_filecache.ibd failed at offset 25690112.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: 8192 bytes should have been written, only 0 were written.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: Operating system error number 5.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: Check that your OS and file system support files of this size.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: Check also that the disk is not full or a disk quota exceeded.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: Error number 5 means 'Input/output error'.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: Some operating system error numbers are described at
Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: (link removed)
Aug 31 10:13:48 ReadyNAS mysqld[6853]: 2021-08-31 10:13:48 7fd324f26780 InnoDB: Operating system error number 5 in a file
I thought if a bad disk was detected the ReadyNAS would alert me via notiifcation, rather surprised that it didn't.
- StephenBAug 31, 2021Guru - Experienced User
BuckoA512 wrote:
It looks like the failure is down to a bad disk in the array, or so it seems from the logs. I didn't realise that downloading the logs gave you more information than you get on the web page.
Aug 31 10:13:48 ReadyNAS mysqld[6853]: 2021-08-31 10:13:48 7fd324f26780 InnoDB: Error: Write to file ./nextcloud/oc_filecache.ibd failed at offset 25690112.Aug 31 10:13:48 ReadyNAS mysqld[6853]: InnoDB: 8192 bytes should have been written, only 0 were written.Not convinced it's a failed disk, though is it clearly a failed write.
How full is your OS partition (root)? You can see this by looking at volume.log - scroll down to the df -h section, and look at the /dev/md0 line.
=== df -h === Filesystem Size Used Avail Use% Mounted on udev 10M 4.0K 10M 1% /dev /dev/md0 4.0G 524M 3.2G 15% /
Similarly, how full is your data volume?
- BuckoA512Aug 31, 2021Aspirant
=== df -h === Filesystem Size Used Avail Use% Mounted on udev 10M 4.0K 10M 1% /dev /dev/md0 4.0G 2.1G 1.6G 58% /
ReadyNAS data has 4.40tb free space. It has 4 x 3tb drives in Xraid.
- StephenBAug 31, 2021Guru - Experienced User
BuckoA512 wrote:
=== df -h === Filesystem Size Used Avail Use% Mounted on udev 10M 4.0K 10M 1% /dev /dev/md0 4.0G 2.1G 1.6G 58% /
ReadyNAS data has 4.40tb free space. It has 4 x 3tb drives in Xraid.
Fuller than usual, but not dangerously full.
Are you seeing any concerning smart stats for your disks in volume.log?
Also, are you seeing any other I/O errors in system.log and kernel.log
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