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Tables keep crashing and corrupting
Posted by: Sebastião Burnay
Date: April 28, 2015 10:05AM


I have a 64bits Ubuntu server 12.04 running a '5.5.31-0ubuntu0.12.04.2-log' MySQL serevr.

My server keeps crashing every other day and the apps that depend on this DB layer also freeze as consequence of DB unavailability.

Today I found this kind of error repeats itself several times in my error.log:
[ERROR] /usr/sbin/mysqld: Incorrect key file for table ...

people online are suggesting disk capacity is the root cause but I have space on my partititons... The only partition that shows high usage under crashing circumstances is the /dev/sdc where the /var/log folder is mounted, I don't understand this behaviour.

Furthermore, i share below info on my partition scheme.

If you need any more information, I will gladly share it.

Best regards,

My current FileSystem is as follows:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/SRVCARTMSBD01-root 38G 2.1G 34G 6% /
udev 2.0G 4.0K 2.0G 1% /dev
tmpfs 791M 316K 791M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 2.0G 0 2.0G 0% /run/shm
/dev/sda1 228M 25M 192M 12% /boot
/dev/sdb 40G 20G 19G 51% /var/lib/mysql
/dev/sdc 7.0G 238M 6.4G 4% /var/log
My databases are inside /var/lib/mysql (/dev/sdb partition)
And my /tmp folder is mounted on my /
# df -P /tmp | tail -1 | cut -d' ' -f 1

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Tables keep crashing and corrupting
April 28, 2015 10:05AM

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