You may in life while working with mysql get the following errors:
ERROR 1016 (HY000) at line 1: Can't open file: './blah/table.frm' (errno: 24)
SQL Error (23): Out of resources when opening file
This happens normally because by default the
mysql user on most distro’s has a really short limit of
1024 open files, mysql can freak out if you have a large amount of databases or tables.
I triggered this by activating
innodb_file_per_table on my setup and having lots of InnoDB tables.
To increase this you need to add the following to
mysql soft nofile 10000 mysql hard nofile 20000
and then add the following to the
my.inf mysql config (Normally found in
open_files_limit = 10000
Reboot the mysql server and it should be fixed!
If this is not fixed then please check if the server itself has not ran out of space.