!!! Problem

If you're trying to write to a file in MySQL, you can get an error which says

Can't create/write to file <filename>

If you're doing this from Python, you can get aa mysql_exceptions.InternalError Errcode 13.

This may be because AppArmor is preventing the write.

!!! Fix

If you want be to write recursively to a particular path and are using Ubuntu -

Append

{{{
/usr/sbin/mysqld {
  ...
  /path/to/write/to/** rw,
}
}}}

to the file

{{{
/etc/apparmor.d/usr.sbin.mysqld
}}}

and restart apparmor

{{{
$ sudo /etc/init.d/apparmor restart
}}}

If you just want to specify a particular file, you can omit the {{/**}}.

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[Linux | CategoryComputing.Linux] - [Python | CategoryComputing.Lang.Python] - [MySQL | CategoryComputing.DB.SQL.MySQL]