C#C
C#•3y ago
3R1C

❔ MySQL server issue (Error 28)

I'll prefix this with a few things:
  • I'm not driven with Ubuntu or other unix based systems.
  • The MySQL server in question runs fine with other programs, leading me to believe this might be a memory issue from the scale of the process.
Unhandled exception. MySqlConnector.MySqlException (0x80004005): Error writing file '/tmp/MYfd=73' (OS errno 28 - No space left on device)


Here's what I've checked.
inodes:
ubuntu@<hostname>:<filepath>$ df -i
Filesystem        Inodes IUsed     IFree IUse% Mounted on
tmpfs            2033848  1089   2032759    1% /run
/dev/md2       121995264 93626 121901638    1% /
tmpfs            2033848     3   2033845    1% /dev/shm
tmpfs            2033848     3   2033845    1% /run/lock
/dev/md1           65408   596     64812    1% /boot
tmpfs             406769    28    406741    1% /run/user/1000

So that does not seem to be an issue.
I even went into mysqld.cnf and changed the tmp path to
tmpdir          = /var/tmp/


Filesystem space does not seem to be an issue either:
ubuntu@<hostname>:<filepath> df -h --total
Filesystem      Size  Used Avail Use% Mounted on
tmpfs           1.6G  1.4M  1.6G   1% /run
/dev/md2        1.8T   39G  1.7T   3% /
tmpfs           7.8G  8.0K  7.8G   1% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
/dev/md1        988M  227M  695M  25% /boot
tmpfs           1.6G  4.0K  1.6G   1% /run/user/1000
total           1.8T   39G  1.7T   3% -


After some googling it should either be the inodes or filespace, and neither one appears to be the culprit.
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