mysql5.5.56源码安装
1：依赖软件安装yum install gcc gcc-c++ ncurses-devel perl
2：安装cmake
wget --no-check-certificate http://www.cmake.org/files/v2.8/cmake-2.8.4.tar.gz
tar zxvf cmake-2.8.4.tar.gz
cd cmake-2.8.4
./configure && make && make install
3：新建mysql用户和组
groupadd mysql
useradd -g mysql mysql
4:新建mysql安装目录和数据目录
mkdir -p /usr/local/mysql
mkdir -p /data/mysqldb
5：
5:下载mysql
6：解压安装
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_UNIX_ADDR=/tmp/mysql.sock -DMYSQL_DATADIR=/data/mysqldb -DSYSCONFDIR=/etc -DMYSQL_USER=mysql -DMYSQL_TCP_PORT=3306 -DWITH_XTRADB_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -
DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DENABLED_LOCAL_INFILE=1 -DWITH_EXTRA_CHARSETS=1 -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DEXTRA_CHARSETS=all -DWITH_BIG_TABLES=1 -DWITH_DEBUG=0
mkdir && mkdir install
7:复制mysql服务启动配置文件
cp support-files/my-small.cnf /etc/my.cnf
8:复制mysql服务启动脚本及加入PATH路径
cp support-files/mysql.server /etc/init.d/mysqld
vim /etc/profile
PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH
export PATH
source /etc/profile
9:初始化mysql数据库
/usr/local/mysql/scripts/mysql_install_db --user=mysql --datadir=/data/mysqldb/ --basedir=/usr/local/mysql
ln -fs /usr/local/mysql/bin/mysql /usr/local/bin/
10：修改root密码
mysqladmin -u root password '123'
开启mysql日志
在my.cnf的下配置常用的几个日志
log-error=/usr/local/mysql/log/error.log
log=/usr/local/mysql/log/mysql.log
log-slow-queries= /usr/local/mysql/log/slowquery.log
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