centos7安装 mysql5.7.18-jinchuang
#安装好开发环境各种依赖包yum groupinstall "Development tools"
#安装依赖包
yum search libaio # search for info
yum install libaio # install library
#新建用户组和用户
groupadd mysql
useradd mysql -g mysql
#建立存放数据库目录
mkdir /data
#解压包指定目录
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.18.tar.gz
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.18-linux-glibc2.5-i686.tar.gz
【625Mmysql-5.7.18-linux-glibc2.5-x86_64.tar.gz】 这里使用官网编译好的二进制安装包
tar xf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz -C /data
#重名名
mv mysql-5.7.18-linux-glibc2.5-x86_64 mysql5.7
#安装
mkdir -p /data/mysql/data
#更改所有者
chown -R mysql:mysql /data/
#初始化数据库
/data/mysql/bin/mysqld --user=mysql --basedir=/data/mysql/ --datadir=/data/mysql/data --initialize
初始化后记下mysql root用户随机产生的密码 pychBtXfV3-A [见底部图片样例]
#拷贝启动程序文件到/etc/init.d/下面
cp support-files/mysql.server /etc/init.d/mysqld
chmod +x /etc/init.d/mysqld
#修改启动脚本文件
vim /etc/init.d/mysqld
修改66-73 行 的mysql程序路径 为我们自定义的路径
修改前：
basedir=/usr/local/mysql
bindir=/usr/local/mysql/bin
if test -z "$datadir"
then
datadir=/usr/local/mysql/data
fi
sbindir=/usr/local/mysql/bin
libexecdir=/usr/local/mysql/bin
修改后：
…
66 basedir=/data/mysql
67 bindir=/data/mysql/bin
68 if test -z "$datadir"
69 then
70 datadir=/data/mysql/data
71 fi
72 sbindir=/data/mysql/bin
73 libexecdir=/data/mysql/bin
…
#先清理一下内存
sync
echo 3 > /proc/sys/vm/drop_caches
#配置my.cnf
#no-beep
socket =/data/mysql/mysql.sock
# pipe
# socket=0.i0
port=3306
default-character-set=utf8
basedir=/data/mysql
datadir=/data/mysql/data
port=3306
pid-file=/data/mysql/mysqld.pid
#skip-grant-tables
skip-name-resolve
socket = /data/mysql/mysql.sock
character-set-server=utf8
default-storage-engine=INNODB
explicit_defaults_for_timestamp = true
# Server Id
server-id=1
max_connections=2000
query_cache_size=0
table_open_cache=2000
tmp_table_size=246M
thread_cache_size=300
#限定用于每个数据库线程的栈大小。默认设置足以满足大多数应用
thread_stack = 192k
key_buffer_size=512M
read_buffer_size=4M
read_rnd_buffer_size=32M
innodb_data_home_dir = /data/mysql/data
innodb_flush_log_at_trx_commit=0
innodb_log_buffer_size=16M
innodb_buffer_pool_size=256M
innodb_log_file_size=128M
innodb_thread_concurrency=128
innodb_autoextend_increment=1000
innodb_buffer_pool_instances=8
innodb_concurrency_tickets=5000
innodb_old_blocks_time=1000
innodb_open_files=300
innodb_stats_on_metadata=0
innodb_file_per_table=1
innodb_checksum_algorithm=0
back_log=80
flush_time=0
join_buffer_size=128M
max_allowed_packet=1024M
max_connect_errors=2000
open_files_limit=4161
query_cache_type=0
sort_buffer_size=32M
table_definition_cache=1400
binlog_row_event_max_size=8K
sync_master_info=10000
sync_relay_log=10000
sync_relay_log_info=10000
#批量插入数据缓存大小，可以有效提高插入效率，默认为8M
bulk_insert_buffer_size = 64M
interactive_timeout = 120
wait_timeout = 120
log-bin-trust-function-creators=1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
#启动mysql
Service mysqld start
#增加环境变量
vim /etc/profile
最下面加上：
export PATH=${PATH}:/data/mysql/bin
#使环境变量生效
source /etc/profile或者 . /etc/profile
#修改密码
mysql –uroot –p
【密码为初始化数据库时给出的随机密码】
#修改密码,不然无法执行mysql相关命令操作
mysql>SET PASSWORD = PASSWORD('root');
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