不想說太多廢話，直接開始步驟吧
免編譯二進位製包
mysql-5.6.21-linux-glibc2.5-x86_64.tar.gz
二、操作流程
tar -zxvf mysql-5.6.38-linux-glibc2.12-x86_64.tar.gz
--解壓
mv mysql-5.6.38-linux-glibc2.12-x86_64 /usr/local/mysql
--移動
1：關閉firewalld
systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall開機啟動
2：關閉selinux
vi /etc/sysconfig/selinux
將selinux修改為disabled，即selinux=disabled
3：建立mysql使用者
groupadd -g 27 mysql
useradd -u 27 -g mysql mysql
id mysql
--檢視使用者資訊
mkdir -p /data/mysql/
mkdir -p /data/mysql/mysql_3306/
mkdir -p /data/mysql/mysql_3307/
5：更改目錄許可權
chown -r mysql:mysql /data/mysql/
chown -r mysql:mysql /usr/local/mysql/
6：新增環境變數
echo 'export path=$path:/usr/local/mysql/bin' >> /etc/profile
source /etc/profile
7：複製my.cnf檔案到etc目錄
cp /usr/local/mysql/support-files/my-default.cnf /etc/my.cnf
8：修改my.cnf（在乙個檔案中修改即可）
[client]
port=3306
socket=/tmp/mysql.sock
[mysqld_multi]
mysqld = /usr/local/mysql /bin/mysqld_safe
mysqladmin = /usr/local/mysql /bin/mysqladmin
log = /data/mysql/mysqld_multi.log
[mysqld]
user=mysql
basedir = /usr/local/mysql
sql_mode=no_engine_substitution,strict_trans_tables
[mysqld3306]
mysqld=mysqld
mysqladmin=mysqladmin
datadir=/data/mysql/mysql_3306/data
port=3306
server_id=3306
socket=/tmp/mysql_3306.sock
log-output=file
slow_query_log = 1
long_query_time = 1
slow_query_log_file = /data/mysql/mysql_3306/log/slow.log
log-error = /data/mysql/mysql_3306/log/error.log
binlog_format = mixed
log-bin = /data/mysql/mysql_3306/log/mysql3306_bin
[mysqld3307]
mysqld=mysqld
mysqladmin=mysqladmin
datadir=/data/mysql/mysql_3307/data
port=3307
server_id=3307
socket=/tmp/mysql_3307.sock
log-output=file
slow_query_log = 1
long_query_time = 1
slow_query_log_file = /data/mysql/mysql_3307/log/slow.log
log-error = /data/mysql/mysql_3307/log/error.log
binlog_format = mixed
log-bin = /data/mysql/mysql_3307/log/mysql3307_bin
9：初始化3306資料庫
/usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql/ --datadir=/data/mysql/mysql_3306/data --defaults-file=/etc/my.cnf
10：初始化3307資料庫
/usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql/ --datadir=/data/mysql/mysql_3307/data --defaults-file=/etc/my.cnf
--初始化有機率失敗，fatal error: please install the following perl modules before executing /usr/local/mysql/scripts/mysql_install_db:
--執行命令：yum -y install autoconf --此包安裝時會安裝data:dumper模組
11：檢視3306資料庫初始化是否成功
cd /data/mysql/mysql_3306/data&&ls
12：設定啟動檔案
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
13：mysqld_multi進行多例項管理
啟動全部例項：/usr/local/mysql/bin/mysqld_multi start
檢視全部例項狀態：/usr/local/mysql/bin/mysqld_multi report
啟動單個例項：/usr/local/mysql/bin/mysqld_multi start 3306
停止單個例項：/usr/local/mysql/bin/mysqld_multi stop 3306
檢視單個例項狀態：/usr/local/mysql/bin/mysqld_multi report 3306
14：啟動全部例項
/usr/local/mysql/bin/mysqld_multi start
--啟動
/usr/local/mysql/bin/mysqld_multi report
--檢視是否成功
15：修改密碼
--mysql的root使用者初始密碼是空，所以需要登入mysql進行修改密碼，下面以3306為例：
mysql -s /tmp/mysql_3306.sock
update user set password=password('123456') where user='root';
grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;
flush privileges;
mysql資料拷貝：
set global log_bin_trust_function_creators=true;
建立mysql賬號:
grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;
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