The option character-set-database should not be configured in my.cnf.
Please note what the MySQL Documentation says on character-set-database:
The character set used by the default database. The server sets this variable whenever the default database changes. If there is no default database, the variable has the same value as character_set_server.
Footnote : This option is dynamic, but only the server should set this information. You should not set the value of this variable manually.
Even the Documentation says it is dynamic, it not supposed to be dynamically by any manual intervention against my.cnf. If you look inside the database subfolder, you will find a file called db.opt. EXAMPLE : When you run use dbname in the mysql client, the file /var/lib/mysql/dbname/db.opt is read in order to set character-set-specific database options contained in that file. For this reason, the variable has to be dynamic.
If you cannot access the database from the OS to see db.opt, simply run this command:
SHOW CREATE DATABASE dbname;
on any database and you will see what db.opt contains (or defaults if db.opt is not there)
mysql> show create database mysql;
+----------+------------------------------------------------------------------+
| Database | Create Database |
+----------+------------------------------------------------------------------+
| mysql | CREATE DATABASE `mysql` /*!40100 DEFAULT CHARACTER SET latin1 */ |
+----------+------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql>
In light of this, you should try setting character-set-server in my.cnf only (or at least remove character-set-database from my.cnf). Then, run service mysql restart.
Give it a Try !!!
UPDATE #1
I sort of dealt with a question like this before : Why default character_set_server is latin1?
Looking back at my old link, I had an idea: I ran this:
mysql> select version();
+-----------+
| version() |
+-----------+
| 5.6.10 |
+-----------+
1 row in set (0.00 sec)
mysql> select * from information_schema.collations where COLLATION_NAME like '%kor%';
+-----------------+--------------------+----+------------+-------------+---------+
| COLLATION_NAME | CHARACTER_SET_NAME | ID | IS_DEFAULT | IS_COMPILED | SORTLEN |
+-----------------+--------------------+----+------------+-------------+---------+
| euckr_korean_ci | euckr | 19 | Yes | Yes | 1 |
+-----------------+--------------------+----+------------+-------------+---------+
1 row in set (0.00 sec)
mysql>
You could set a Korean character set if need to.
UPDATE #2
You should leave wait_timeout and interactive_timeout out of the [client] and [mysql] groups.
Best Answer
Short answer: Not possible.
Long answer...
That setting is used when any MyISAM
FULLTEXTindex is being built. You should change to InnoDB, in which caseinnodb_ft_min_token_sizeis the variable to set. (It defaults to 3.)If you change the setting after the index is built, it has no effect on existing indexes or queries using those indexes.
The only way to change it is to (1) change it in
my.cnf, then (2) rebuild the index on any table for which you want the new length.