[knoppix:2190] MySQLの活用方法その1

M.Kamataki です。

つい最近、PostgreSQLの話題が流れました。でも最初からMySQLがインストー
ルされているので、せっかくですからその活用方法も紹介しましょう。:-)

わたしの場合は、継続的なホームディレクトリにデータを保存します。

まず、ホームディレクトリ以下の準備

$ mkdir var
$ mkdir var/lib
$ mkdir var/lib/mysql

MySQLのデータをコピー

$ sudo cp -rp /var/lib/mysql/* var/lib/mysql/

MySQLの設定ファイルを修正(データベース保存場所のディレクトリを変更)
下準備

$ sudo mv /etc/mysql/my.cnf /etc/mysql/my.cnf.orig

修正後のファイル内容(ちょっと長いです)
$ cat /etc/mysql/my.cnf
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "/var/lib/mysql/my.cnf" to set server-specific options or
# - "~/.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.
#

# This will be passed to all mysql clients
[client]
#password       = my_password
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]
err-log         = /var/log/mysql/mysql.err
socket          = /var/run/mysqld/mysqld.sock

[mysqld]
user            = mysql
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
port            = 3306
#
# You can also put it into /var/log/mysql/mysql.log but I leave it in /var/log
# for backward compatibility. Both location gets rotated by the cronjob.
#log            = /var/log/mysql/mysql.log
log             = /var/log/mysql.log
basedir         = /usr
datadir         = /home/knoppix/var/lib/mysql
tmpdir          = /tmp
language        = /usr/share/mysql/english
default-character-set=ujis
skip-locking
#
# The skip-networkin option will no longer be set via debconf menu.
# You have to manually change it if you want networking i.e. the server
# listening on port 3306. The default is "disable" - for security reasons.
skip-networking
set-variable    = key_buffer=16M
set-variable    = max_allowed_packet=1M
set-variable    = thread_stack=128K
#
# Here you can see queries with especially long duration
#log-slow-queries       = /var/log/mysql/mysql-slow.log
#
# The following can be used as easy to replay backup logs or for replication
#server-id              = 1
#log-bin                = /var/log/mysql/mysql-bin.log
#binlog-do-db           = include_database_name
#binlog-ignore-db       = include_database_name
#
# Read the manual if you want to enable InnoDB!
skip-innodb
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# If you want to enable SSL support (recommended) read the manual or my
# HOWTO in /usr/share/doc/mysql-server/SSL-MINI-HOWTO.txt
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem



[mysqldump]
quick
set-variable    = max_allowed_packet=1M
default-character-set=ujis

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition
default-character-set=ujis

[isamchk]
set-variable    = key_buffer=16M

これで準備は整いました。

$ sudo /etc/init.d/mysql start

で、MySQLを起動できます。

本来なら、MySQLコマンドでテーブル作成などを行なうわけですが、KNOPPIXに
も収録されているOpenOffice.orgを使ってみましょう。というわけで、その2
に。