一、安装环境：CentOS 7 Linux version 3.10.0-229.el7.x86_64 Nginx-1.9.12
Mysql-5.6.14
二、安装步骤
2.1 安装mysql相关的组件
命令：yum install –y autoconf automake imake libxml2-devel expat-devel cmake gcc gcc-c++ libaio libaio-devel bzr bison libtool ncurses5-devel
2.2 下载mysql-5.6.14
命令：cd /usr/local/src
wget -c http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.14-linux-glibc2.5-x86_64.tar.gz/from/http://cdn.mysql.com/ -O mysql-5.6.14-linux-glibc2.5-x86_64.tar.gz
2.3 解压并移动mysql文件夹
命令：tar –zxf mysql-5.6.14-linux-glibc2.5-x86_64 .tar.gz
命令：mv mysql-5.6.14-linux-glibc2.5-x86_64 ../mysql
2.4 创建mysql用户组和用户，及数据库存放目录
mkdir -p /data/mysql_data
mkdir -p /data/mysql_log
mkdir -p /data/log-bin
groupadd mysql
useradd mysql -g mysql -M -s /sbin/nologin
chown -R mysql.mysql /data/mysql_data /data/mysql_log /data/log-bin
chown -R mysql.mysql /usr/local/mysql
2.5 配置mysql文件my.cnf
命令：vim /etc/my.cnf
配置内容：
[mysqld]
# GENERAL #
user = mysql
default-storage-engine = InnoDB
socket = /data/mysql_data/mysql.sock
port = 3306
explicit_defaults_for_timestamp=true
# MyISAM #
key_buffer_size = 1344M
myisam_recover = FORCE,BACKUP
# SAFETY #
max_allowed_packet = 16M
max_connect_errors = 1000000
skip_name_resolve
# DATA STORAGE #
datadir = /data/mysql_data/
long_query_time = 1
# BINARY LOGGING #
log-bin = /data/log-bin/mysql-bin-3306
expire-logs-days = 14
sync-binlog = 1
server-id = 1
max_binlog_size = 500M
# REPLICATION #
relay-log = /data/log-bin/relay-bin-3306
slave-net-timeout = 60
# CACHES AND LIMITS #
tmp_table_size = 32M
max_heap_table_size = 32M
max_connections = 500
thread_cache_size = 50
open_files_limit = 65535
table_definition_cache = 4096
table_open_cache = 4096
# INNODB #
innodb_data_file_path = ibdata1:128M;ibdata2:10M:autoextend
innodb_flush_method = O_DIRECT
innodb_log_files_in_group = 2
innodb_lock_wait_timeout = 50
innodb_log_file_size = 256M
innodb_flush_log_at_trx_commit = 1
innodb_file_per_table = 1
innodb_thread_concurrency = 8
innodb_buffer_pool_size = 8G
# LOGGING #
log-error = /data/mysql_log/mysql-error-3306.log
log-queries-not-using-indexes = 1
slow-query-log = 1
long_query_time = 1
slow-query-log-file = /data/mysql_log/mysql-slow-3306.log
# FOR SLAVE #
#binlog-format = ROW
#log-slave-updates = true
#gtid-mode = on
#enforce-gtid-consistency = true
#master-info-repository = TABLE
#relay-log-info-repository = TABLE
#sync-master-info = 1
#slave-parallel-workers = 2
#binlog-checksum = CRC32
#master-verify-checksum = 1
#slave-sql-verify-checksum = 1
#binlog-rows-query-log_events = 1
#report-port = 3306
#report-host = 192.168.41.98
[mysqld_safe]
pid-file=/data/mysql_data/mysql.pid
[mysql]
socket=/data/mysql_data/mysql.sock
[mysqldump]
socket=/data/mysql_data/mysql.sock
[mysqladmin]
socket=/data/mysql_data/mysql.sock
2.6 配置mysql为系统服务并设置成开机启动
命令1：cp -af /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
vim /etc/init.d/mysqld
修改以下内容并保存
basedir=/usr/local/mysql
datadir=/data/mysql_data
命令2：chmod 755 /etc/init.d/mysqld
chkconfig --add mysqld
chkconfig --level 345 mysqld on
chkconfig --list
2.7 初始化数据库
命令：cd /usr/local/mysql
./scripts/mysql_install_db --user=mysql --defaults-file=/etc/my.cnf
2.8 启动、关闭与重启mysql服务
命令：service mysqld start #启动mysql服务
service mysqld stop #关闭mysql服务
service mysqld restart #重启mysql服务
2.9 修改root 密码并设置登陆权限
命令：
ln -s /usr/local/mysql/bin/mysql /usr/binmysql -uroot #root用户初始密码为空，直接输入此命令即可登陆mysql
>set password for 'root'@'localhost' = password('HKbfmysql'); #配置root密码为HKbfmysql
>grant all privileges on *.* to 'root'@'%' identified by 'HKbfmysql' with grant option; #配置允许所有主机可以用root用户登陆mysql
>exit
