之前写过一个5.6的安装脚本
5.7结构跟5.6略微有一些不同，在5.7上有一些很值得学习的新特征，比如说：
（1）安全性提高
（2）增强了InnoDB引擎的一些功能
（3）支持对在线某个连接直接查看执行计划
（4）新增log_syslog选项，可以把MySQL的日志打印到系统日志文件中
（5）还支持多线程复制
等等等，在这里我就不细说了
所以想在写一个5.7的安装脚本
下面看一下安装过程
按 Ctrl+C 复制代码
按 Ctrl+C 复制代码
安装之前首先检查有没有mysql的进程
mysqlProcessNum=`/bin/ps aux | /bin/grep mysql | /usr/bin/wc -l | /bin/awk '{ print $1 }'`;
if [ $mysqlProcessNum -gt 3 ]; then
echo "已经安装MySQL"
exit
fi
然后下载（可以从官网下载，但是个人感觉太慢了，于是就搭建了一个简单的ftp服务器，当然也可以本地上传嘛，在这里我就不细说了）
# download mysql package yum install libaio #MySQL的一个依赖包 /usr/bin/yum install awk wget -y mysqlDownloadURL=ftp://。。。。。。。。。/pub/mysql/mysql-5.7.8-rc-linux-glibc2.5-x86_64.tar.gz; cd /tmp; /bin/rm -rf mysql*.tar.gz /usr/bin/wget $mysqlDownloadURL;
解压，建立软连接
添加用户和用户组（判断一下，如果没添加就添加一下）
packageName=`/bin/ls | /bin/grep mysql*.tar.gz`;
# unpakcage mysql
/bin/tar zxvf $packageName -C /usr/local
mysqlAllNameDir=`/bin/ls -l /usr/local | grep mysql | /bin/awk '{ print $9 }'`
/bin/ln -s $mysqlAllNameDir /usr/local/mysql
userNum=`/bin/cat /etc/passwd | /bin/grep mysql | /bin/awk -F ':' '{ print $1 }' | /usr/bin/wc -l`
if [ $userNum -lt 1 ];then
/usr/sbin/groupadd mysql
/usr/sbin/useradd -d /usr/local/mysql -s /sbin/nologin -g mysql mysql
echo "成功添加"
fi
检查/etc下面是否有my.cnf文件，有的话就干掉，或者备份
/bin/mv /etc/my.cnf /etc/my.cnf.bak
建立mysql-files文件夹并且赋予770权限
/bin/mkdir /usr/local/mysql/mysql-files /bin/chmod 770 /usr/local/mysql/mysql-files /bin/chown -R mysql /usr/local/mysql/ /bin/chgrp -R mysql /usr/local/mysql/
初始化
/usr/local/mysql/bin/mysql_install_db --user=mysql --datadir=/usr/local/mysql/data /usr/local/mysql/bin/mysqld --initialize --user=mysql /usr/local/mysql/bin/mysql_ssl_rsa_setup
写一份配置文件my.cnf 放到/etc下面
/etc/my.cnf （这里也说明一点，MySQL配置文件有参数替换原则）
顺序是这样的
/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf
[client] socket=/usr/local/mysql/mysql-files/mysql.sock [mysqld] explicit_defaults_for_timestamp=true datadir=/usr/local/mysql/data socket=/usr/local/mysql/mysql-files/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # LOG slow_query_log = 1 slow_query_log_file = /usr/local/mysql/mysql-files/mysql-slow.log long_query_time = 2 # GENERAL LOG #general_log = 1 #general_log_file = /usr/local/mysql/mysql-files/mysql-general.log # BINARY LOG server_id=101 log_bin=/usr/local/mysql/mysql-files/mysql-bin.log binlog_format=ROW sync_binlog=1 expire_logs_days=7 # ERROR LOG log_error=/usr/local/mysql/mysql-files/mysql.err # OTHER character_set_server = utf8mb4 transaction-isolation = READ-COMMITTED max_connections = 1000 log-queries-not-using-indexes log_throttle_queries_not_using_indexes = 10 # INNODB innodb_strict_mode=1 innodb_file_format=Barracuda innodb_file_format_max=Barracuda innodb_read_io_threads=4 innodb_write_io_threads=8 # 8 ~ 12 innodb_io_capacity=1000 # HDD:800 ~ 1200 SSD: 10000+ innodb_adaptive_flushing=1 # SSD: 0 innodb_flush_log_at_trx_commit=1 innodb_max_dirty_pages_pct=75 innodb_buffer_pool_dump_at_shutdown=1 innodb_buffer_pool_load_at_startup=1 innodb_flush_neighbors=1 # SSD:0 innodb_log_file_size=1024M # SSD:4G~8G HDD:1G~2G innodb_purge_threads=1 # SSD:4 innodb_lock_wait_timeout=3 innodb_print_all_deadlocks=1 pid-file=/usr/local/mysql/data/mysqld/mysqld.pid [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/usr/local/mysql/data/mysqld/mysqld.pid
修改使用权限
/bin/chown -R root . /bin/chown -R mysql /usr/local/mysql/data /usr/local/mysql/mysql-files
以safe 方式启动
/usr/local/mysql/bin/mysqld_safe --user=mysql &
mysql5.7会生成一个初始化密码，而在之前的版本首次登陆不需要登录。
#重启mysqld #cd /usr/local/mysql #./bin/mysqld restart #mysql5.7有默认密码 cat /root/.mysql_secret
[root@db mysql]# cat /root/.mysql_secret # Password set for user 'root@localhost' at 2016-11-16 19:10:59 ny8(ko+lhtPu [root@db mysql]# ./bin/mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.8-rc-log Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
下面上完整的脚本
#!/bin/bash
# mysql install script, the home directory is /usr/local/mysql-VERSION and the soft link is /usr/local/mysql
yum install libaio
/usr/bin/yum install awk wget -y
config=`/bin/pwd`
mysqlProcessNum=`/bin/ps aux | /bin/grep mysql | /usr/bin/wc -l | /bin/awk '{ print $1 }'`;
if [ $mysqlProcessNum -gt 3 ];then
echo "已经安装MySQL"
fi
# download mysql package
mysqlDownloadURL=ftp://222.26.224.236/pub/mysql/mysql-5.7.8-rc-linux-glibc2.5-x86_64.tar.gz;
cd /tmp;
/bin/rm -rf mysql*.tar.gz
/usr/bin/wget $mysqlDownloadURL;
packageName=`/bin/ls | /bin/grep mysql*.tar.gz`;
# unpakcage mysql
/bin/tar zxvf $packageName -C /usr/local
mysqlAllNameDir=`/bin/ls -l /usr/local | grep mysql | /bin/awk '{ print $9 }'`
/bin/ln -s $mysqlAllNameDir /usr/local/mysql
userNum=`/bin/cat /etc/passwd | /bin/grep mysql | /bin/awk -F ':' '{ print $1 }' | /usr/bin/wc -l`
if [ $userNum -lt 1 ];then
/usr/sbin/groupadd mysql
/usr/sbin/useradd -d /usr/local/mysql -s /sbin/nologin -g mysql mysql
echo "成功添加"
fi
#/bin/mv /etc/my.cnf /etc/my.cnf.bak
/bin/mkdir /usr/local/mysql/mysql-files
/bin/chmod 770 /usr/local/mysql/mysql-files
/bin/chown -R mysql /usr/local/mysql/
/bin/chgrp -R mysql /usr/local/mysql/
/usr/local/mysql/bin/mysql_install_db --user=mysql --datadir=/usr/local/mysql/data
/usr/local/mysql/bin/mysqld --initialize --user=mysql
/usr/local/mysql/bin/mysql_ssl_rsa_setup
#我的配置文件放到root目录下面了
/bin/cp $config/my.cnf /etc/
/bin/chown -R root .
/bin/chown -R mysql /usr/local/mysql/data /usr/local/mysql/mysql-files
/usr/local/mysql/bin/mysqld_safe --user=mysql &
#重启mysqld
cd /usr/local/mysql
./bin/mysqld restart
#mysql5.7有默认密码
cat /root/.mysql_secret
#cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
#chmod 755 /etc/init.d/mysqld
加油