mysql5.6安装

1.安装

a.安装依赖

yum install -y ncurses-devel libaio-devel

b.安装cmake

yum install -y cmake

c.创建用户

useradd -s /sbin/nologin -M mysql 

d.经典三步曲

http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.39.tar.gz

wget http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.39.tar.gz

tar xf mysql-5.6.39.tar.gz
cd mysql-5.6.39

#编译安装
cmake . -DCMAKE_INSTALL_PREFIX=/application/mysql-5.6.39 \
-DMYSQL_DATADIR=/application/mysql-5.6.39/data \
-DMYSQL_UNIX_ADDR=/application/mysql-5.6.39/tmp/mysql.sock \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_EXTRA_CHARSETS=all \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_FEDERATED_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITHOUT_EXAMPLE_STORAGE_ENGINE=1 \
-DWITH_ZLIB=bundled \
-DWITH_SSL=bundled \
-DENABLED_LOCAL_INFILE=1 \
-DWITH_EMBEDDED_SERVER=1 \
-DENABLE_DOWNLOADS=1 \
-DWITH_DEBUG=0    
make && make install  

 e.创建链接

ln -s /application/mysql-5.6.39 /application/mysql

 2.初始化数库

 a.配置文件

cp support-files/my*.cnf /etc/my.cnf

b.创建目录

mkdir -p /application/mysql/tmp

 c.授权

chown -R mysql.mysql /application/mysql-5.6.37

d.设置路径

echo 'PATH=/application/mysql/bin:$PATH' >>/etc/profile
tail -1 /etc/profile
source /etc/profile
echo $PATH
mysql

e.初次设置密码

mysqladmin password root
mysqladmin -uroot -p password"root"
#已有密码下修改密码
mysqladmin -uroot -p123456 password"root"

 f.删除无用密码

drop user ''@'localhost';
drop user ''@'root';
drop user ''@'::1';
#视个人主机，主机域而定
#删除格式为 drop user '用户名'@'主机域'