今天数据库服务器可以使用了，现在下一步就是安装mysql，决定mysql 版本为5.6.14
- 检查系统中是否已经安装过mysql。
rpm -qa | grep mysql
如下图：
- 如果存在，则需要删除。
yum -y remove mysql*
- 继续检查一下是否还存在mysql
rpm -qa | grep -i mysql
- 然后下一步就是下载rpm包了。需要下载：
MySQL-client-5.6.15-1.el6.x86_64.rpm
MySQL-devel-5.6.15-1.el6.x86_64.rpm
MySQL-server-5.6.15-1.el6.x86_64.rpm
逐一执行命令：
wget http://cdn.mysql.com/archives/mysql-5.6/MySQL-client-5.6.15-1.el6.x86_64.rpm
wget http://cdn.mysql.com/archives/mysql-5.6/MySQL-devel-5.6.15-1.el6.x86_64.rpm
wget http://cdn.mysql.com/archives/mysql-5.6/MySQL-server-5.6.15-1.el6.x86_64.rpm
- 接下来就是安装了分别依次执行：
[[email protected] rpm]# rpm -ivh MySQL-server-5.6.15-1.el6.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-server ########################################### [100%]
2015-03-06 08:16:03 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-03-06 08:16:03 28629 [Note] InnoDB: The InnoDB memory heap is disabled
2015-03-06 08:16:03 28629 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-03-06 08:16:03 28629 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-03-06 08:16:03 28629 [Note] InnoDB: Using Linux native AIO
2015-03-06 08:16:03 28629 [Note] InnoDB: Using CPU crc32 instructions
2015-03-06 08:16:03 28629 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-03-06 08:16:03 28629 [Note] InnoDB: Completed initialization of buffer pool
2015-03-06 08:16:03 28629 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2015-03-06 08:16:03 28629 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2015-03-06 08:16:03 28629 [Note] InnoDB: Database physically writes the file full: wait...
2015-03-06 08:16:03 28629 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2015-03-06 08:16:04 28629 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2015-03-06 08:16:06 28629 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2015-03-06 08:16:06 28629 [Warning] InnoDB: New log files created, LSN=45781
2015-03-06 08:16:06 28629 [Note] InnoDB: Doublewrite buffer not found: creating new
2015-03-06 08:16:06 28629 [Note] InnoDB: Doublewrite buffer created
2015-03-06 08:16:06 28629 [Note] InnoDB: 128 rollback segment(s) are active.
2015-03-06 08:16:06 28629 [Warning] InnoDB: Creating foreign key constraint system tables.
2015-03-06 08:16:06 28629 [Note] InnoDB: Foreign key constraint system tables created
2015-03-06 08:16:06 28629 [Note] InnoDB: Creating tablespace and datafile system tables.
2015-03-06 08:16:06 28629 [Note] InnoDB: Tablespace and datafile system tables created.
2015-03-06 08:16:06 28629 [Note] InnoDB: Waiting for purge to start
2015-03-06 08:16:06 28629 [Note] InnoDB: 5.6.15 started; log sequence number 0
A random root password has been set. You will find it in ‘/root/.mysql_secret‘.
2015-03-06 08:16:07 28629 [Note] Binlog end
2015-03-06 08:16:07 28629 [Note] InnoDB: FTS optimize thread exiting.
2015-03-06 08:16:07 28629 [Note] InnoDB: Starting shutdown...
2015-03-06 08:16:08 28629 [Note] InnoDB: Shutdown completed; log sequence number 1625977
2015-03-06 08:16:08 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-03-06 08:16:08 28652 [Note] InnoDB: The InnoDB memory heap is disabled
2015-03-06 08:16:08 28652 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-03-06 08:16:08 28652 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-03-06 08:16:08 28652 [Note] InnoDB: Using Linux native AIO
2015-03-06 08:16:08 28652 [Note] InnoDB: Using CPU crc32 instructions
2015-03-06 08:16:08 28652 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-03-06 08:16:08 28652 [Note] InnoDB: Completed initialization of buffer pool
2015-03-06 08:16:08 28652 [Note] InnoDB: Highest supported file format is Barracuda.
2015-03-06 08:16:08 28652 [Note] InnoDB: 128 rollback segment(s) are active.
2015-03-06 08:16:08 28652 [Note] InnoDB: Waiting for purge to start
2015-03-06 08:16:08 28652 [Note] InnoDB: 5.6.15 started; log sequence number 1625977
2015-03-06 08:16:08 28652 [Note] Binlog end
2015-03-06 08:16:08 28652 [Note] InnoDB: FTS optimize thread exiting.
2015-03-06 08:16:08 28652 [Note] InnoDB: Starting shutdown...
2015-03-06 08:16:10 28652 [Note] InnoDB: Shutdown completed; log sequence number 1625987
[[email protected] rpm]# rpm -ivh MySQL-devel-5.6.15-1.el6.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-devel ########################################### [100%]
[[email protected] rpm]# rpm -ivh MySQL-client-5.6.15-1.el6.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-client ########################################### [100%]
修改配置文件位置。
[[email protected] rpm]# cp /usr/share/mysql/my-default.cnf /etc/my.cnf
- 初始化MySQL及设置密码
cp /usr/share/mysql/my-default.cnf /etc/my.cnf
/usr/bin/mysql_install_db
cat /root/.mysql_secret
记录最后的密码
mysql -p ---输入记录的密码，即可登录mysql。
set password for ‘root‘@‘localhost‘ =password(‘新密码‘);
flush privileges;
exit
- 设置自启动
chkconfig
mysql on - MySQL的默认安装位置
1/var/lib/mysql/#数据库目录2/usr/share/mysql#配置文件目录3/usr/bin#相关命令目录4/etc/init.d/mysql#启动脚本 - 修改字符集和数据存放目录
原来配置文件：
更改之后为：
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It‘s a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
[client]
port = 3306
default-character-set=utf8
[mysqld]
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
# These are commonly set, remove the # and set as required.
# basedir = .....
datadir = /mnt/data/mysql
port = 3306
# server_id = .....
# socket = .....
lower_case_table_names=1
max_connections=1000
collation_server = utf8_general_ci
character_set_server = utf8
# default-character-set=utf8
# init_connect=‘SET NAMES utf8‘
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysql]
default-character-set = utf8
注意标红的。
然后就是修改数据库的数据目录：
vi /etc/init.d/mysql
- 重启数据库：
service mysql restart
- 大功告成。
