2011年1月17日月曜日

【ubuntuにmysql,phpmyadminを導入、文字コードをutf8に】

今までCentOSサーバーでlccとか作っていたが、データ生成や機械学習はubuntuサーバーでやろうと思うので、mysqlとphpmyadminをセットアップする。
そんなもん前にまとめた


【phpMyAdminの導入とMySQLの設定】


http://tatsushim.blogspot.com/2010/12/phpmyadminmysql.html

と同じだろーと思ったのだが、ubuntuだとコマンドや設置場所など微妙に違ったので、次回戸惑わないためのメモ。
phpmyadminの導入は前の日記と同じ方法でOK.

【MySQLの文字コード問題】

前の日記に沿ってmy.confを編集しようと思ったらetc直下にない。
ubuntuでは/etc/mysqlにあることが判明。
しかも、内容がちょっと違う。

※ubuntuとcentosというよりは、MySQLのversionの問題だろうか?
自分の環境は
mysql> select version();
+-------------------+
| version()         |
+-------------------+
| 5.1.49-1ubuntu8.1 |
+-------------------+
1 row in set (0.00 sec)
なのだけれども・・・?



まぁとりあえず自分の環境をutf環境にする。
my.confのバックアップとしてmy.conf.origを作成して、
my.confを以下の赤字を追記



#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.

# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html


# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock


# Here is entries for some specific programs
# The following values assume you have at least 32M ram


# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0


[mysqld]
#
# * Basic Settings
#


#
# * IMPORTANT
#   If you make changes to these settings and your system uses apparmor, you may
#   also need to also adjust /etc/apparmor.d/usr.sbin.mysqld.
#


user = mysql
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size       = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover         = BACKUP
#max_connections        = 100
#table_cache            = 64
#thread_concurrency     = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size        = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file        = /var/log/mysql/mysql.log
#general_log             = 1


log_error                = /var/log/mysql/error.log


# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
#       other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size         = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem


default-character-set = utf8
skip-character-set-client-handshake
init_connect="SET NAMES utf8"




[mysqldump]
quick
quote-names
max_allowed_packet = 16M


[mysql]
#no-auto-rehash # faster start of mysql but no tab completition


[isamchk]
key_buffer = 16M


#
# * IMPORTANT: Additional settings that can override those from this file!
#   The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/


以上で、下記のようになった。これで使えるぞー^^

+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
| character_set_client     | utf8                       |
| character_set_connection | utf8                       |
| character_set_database   | utf8                       |
| character_set_filesystem | binary                     |
| character_set_results    | utf8                       |
| character_set_server     | utf8                       |
| character_set_system     | utf8                       |
| character_sets_dir       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+

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