卸载mariadb

# rpm -qa mariadb*
mariadb-libs-5.5.44-2.el7.centos.x86_64
# rpm -e --nodeps mariadb-libs-5.5.44-2.el7.centos.x86_64

一、对于centos 7 安装mySql依赖项

yum install  gcc gcc-c++ make cmake bison bison-devel ncurses ncurses-devel libaio-devel perl autoconf automake zlib* fiex* libxml*  libmcrypt* libtool-ltdl-devel* 

二、创建用户

设置MySQL用户和组

• 新增mysql用户组

  groupadd mysql 

• 新增mysql用户

useradd -r -g mysql mysql 

三、新建MySQL所需要的目录

• 新建mysql安装目录

1. -p /mysql/app

• 新建mysql数据库数据文件目录

mkdir -p /mysql/app/data

• 新建mysql.sock数据库链接文件目录

mkdir -p /mysql/app/tmp

• 新建mysql日志存放目录

mkdir -p /mysql/app/logs

• 新建mysql 配置文件目录

mkdir -p  /mysql/app/etc

四、上传源码文件

• mysql-5.7.18.tar.gz
• 下载地址
• http://120.198.244.60:9999/mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.18.tar.gz

解压编译

cmake -DCMAKE_INSTALL_PREFIX=/mysql/app -DMYSQL_DATADIR=/mysql/app/data -DSYSCONFDIR=/mysql/app/etc -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_MEMORY_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DMYSQL_UNIX_ADDR=/mysql/app/tmp/mysql.sock -DMYSQL_TCP_PORT=3306 -DENABLED_LOCAL_INFILE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DDOWNLOAD_BOOST=1 -DWITH_BOOST=/usr/local/boost

参数解析：

• CMAKE_INSTALL_PREFIX：指定MySQL程序的安装目录，默认/usr/local/mysql
• DEFAULT_CHARSET：指定服务器默认字符集，默认latin1
• DEFAULT_COLLATION：指定服务器默认的校对规则，默认latin1_general_ci
• ENABLED_LOCAL_INFILE：指定是否允许本地执行LOAD DATA INFILE，默认OFF
• WITH_COMMENT：指定编译备注信息
• WITH_xxx_STORAGE_ENGINE：指定静态编译到mysql的存储引擎，MyISAM，MERGE，MEMBER以及CSV四种引擎默认即被编译至服务器，不需要特别指定。
• WITHOUT_xxx_STORAGE_ENGINE：指定不编译的存储引擎
• SYSCONFDIR：初始化参数文件目录
• MYSQL_DATADIR：数据文件目录
• MYSQL_TCP_PORT：服务端口号，默认3306
• MYSQL_UNIX_ADDR：socket文件路径，默认/tmp/mysql.sock
• DDOWNLOAD_BOOST=1 ：下载boost库
• DWITH_BOOST=/usr/local/boost 安装boost库

编译安装

make && make install

• 中间大概2个小时

## 出错的情况下 需要重新编译才执行 否则不用操作 下面这两条命令
make clean
rm -f CMakeCache.txt

五、创建配置文件my.cnf

• 编译安装不存在my.cnf
• 手动创建my.cnf

vi /mysql/app/etc/my.cnf

[client]
port = 3306
socket    = /mysql/tmp/mysqld.sock

[mysqld]
port = 3306
pid-file = /mysql/tmp/mysqld.pid
socket    = /mysql/tmp/mysqld.sock
datadir    = /mysql/data
log_error = /mysql/logs/mysql-error.log

slow_query_log = 1
long_query_time = 1 
slow_query_log_file = /mysql/logs/mysql-slow.log

#symbolic-links=0 #分区

user = mysql
bind-address = 0.0.0.0
character_set_server=utf8
init_connect='SET NAMES utf8'

server-id = 1

skip-name-resolve  
back_log = 600  
max_connections = 10240
max_connect_errors = 10000  
open_files_limit = 10240 
table_open_cache = 128 
max_allowed_packet = 4M
binlog_cache_size = 1M 
max_heap_table_size = 8M
tmp_table_size = 16M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
sort_buffer_size = 8M
join_buffer_size = 8M
thread_cache_size = 64  ##线程缓存  
query_cache_size = 32M  ##查询缓存大小
query_cache_limit = 2M
key_buffer_size = 4M
ft_min_word_len = 4
transaction_isolation = REPEATABLE-READ
log_bin = mysql-bin  
binlog_format = mixed 
expire_logs_days = 30 
performance_schema = 0
explicit_defaults_for_timestamp
skip-external-locking
default-storage-engine = InnoDB
innodb_file_per_table = 1 
innodb_open_files = 1024
innodb_buffer_pool_size = 512M  
innodb_write_io_threads = 4  
innodb_read_io_threads = 4 
innodb_purge_threads = 1 
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 2M
innodb_log_file_size = 32M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
bulk_insert_buffer_size = 8M
myisam_sort_buffer_size = 32M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
interactive_timeout = 28800  
wait_timeout = 28800   
[mysqldump]
quick
max_allowed_packet = 16M 

[myisamchk]
key_buffer_size = 8M
sort_buffer_size = 8M
read_buffer = 4M
write_buffer = 4M

[mysql]
#character_set_server=utf8

六、授权用户

chown -R mysql:mysql /mysql/app
chown -R mysql:mysql /mysql/app/data
chmod 1777 /mysql/app/tmp

七、设置环境变量

echo 'export PATH=/mysql/app/bin:$PATH' >>/etc/profile

source !$

八、创建服务启动脚本，添加开机启动

cp /mysql/app/support-files/mysql.server/etc/init.d/mysqld 
chmod +x /etc/init.d/mysqld //给脚本添加执行权限 
vi /etc/init.d/mysqld

//服务启动脚本要修改以下两个参数 
basedir=/mysql/app //MySQL安装目录 
datadir= /mysql/app/data //数据存放目录
conf=/mysql/etc/my.cnf  //配置文件路径
chkconfig mysqld on //添加开机启动

九、初始化数据库

 /mysql/app/bin/mysqld --initialize --user=mysql --basedir=/mysql/app --datadir=/mysql/app/data/

• /mysql/app/logs/mysql-error.log
• 记录临时密码

十、重启mysql

service mysqld restart

十一、登陆

• mysql -u root -p
• 输入临时密码
• 修改root密码
• SET PASSWORD = PASSWORD('新密码');
• ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;
• flush privileges;