https://stackoverflow.com/questions/7415710/mysql-writing-file-error-errcode-28/7415732#7415732
I have the following error with one of our web applications -
Query3 failed: Error writing file '/tmp/MY1fnqpm' (Errcode: 28) ... INSERT MailList... (removed the rest of the query for security reasons)Any ideas - is this some hard disk space issue on my server?
Use the perror command:
$ perror 28
OS error code 28: No space left on deviceUnless error codes are different on your system, your file system is full.