编译安装MySQl

#########安装mysql######
yum -y install \
ncurses \
ncurses-devel \
bison \
cmake
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useradd -s /sbin/nologin mysql ###创建mysql用户
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###上传mysql-boost-5.7.20.tar.gz到opt目录下###
cd /opt
tar xf mysql-boost-5.7.20.tar.gz
cd /opt/mysql-5.7.20/
###配置###
cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \
-DSYSCONFDIR=/etc \
-DSYSTEMD_PID_DIR=/usr/local/mysql \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_ARCHIVE_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITH_PERFSCHEMA_STORAGE_ENGINE=1 \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DWITH_BOOST=boost \
-DWITH_SYSTEMD=1
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注意：如果在CMAKE的过程中有报错，当报错解决后，需要把源码目录中的CMakeCache.txt文件删除，然后再重新CMAKE，否则错误依旧
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make && make install ###编译安装
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chown -R mysql:mysql /usr/local/mysql/ ###更改所有者
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vi /etc/my.cnf ####建立MySQL配置文件
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[client]
port = 3306
default-character-set=utf8
socket = /usr/local/mysql/mysql.sock
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[mysql]
port = 3306
default-character-set=utf8
socket = /usr/local/mysql/mysql.sock
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[mysqld]
user = mysql
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
character_set_server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket = /usr/local/mysql/mysql.sock
server-id = 1
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sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES
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chown mysql:mysql /etc/my.cnf ###修改该配置文件的所有者
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####设置环境变量####
echo 'PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH' >> /etc/profile
echo 'export PATH' >> /etc/profile
source /etc/profile
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cd /usr/local/mysql/
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bin/mysqld \ ####初始化数据库
--initialize-insecure \
--user=mysql \
--basedir=/usr/local/mysql \
--datadir=/usr/local/mysql/data
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cp usr/lib/systemd/system/mysqld.service /usr/lib/systemd/system/ ###添加系统服务
systemctl daemon-reload #####重新载入 systemd，扫描新的或有变动的单元
systemctl start mysqld ###启动服务
netstat -anpt | grep 3306 ###查看服务端口
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systemctl enable mysqld ###开机自动启动mysqld
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mysqladmin -u root -p password "abc123" //刚开始没密码是空的直接回车，然后输入密码abc123,在此确认abc123,这是在root账户下运行的
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mysql -u root -p ##这个命令敲下，提示要输入密码,这个就是刚才设置的密码abc123