最近在写一个MySQL的shell安装脚本
说明一点着里面的所有路径都是绝对路径
下面来总结一下安装 遇到的一些问题，以及安装的过程
这个是自带的安装过程
shell> groupadd mysql shell> useradd -r -g mysql mysql shell> cd /usr/local shell> tar zxvf /path/to/mysql-VERSION-OS.tar.gz shell> ln -s full-path-to-mysql-VERSION-OS mysql shell> cd mysql shell> chown -R mysql . shell> chgrp -R mysql . shell> scripts/mysql_install_db --user=mysql shell> chown -R root . shell> chown -R mysql data shell> bin/mysqld_safe --user=mysql & # Next command is optional shell> cp support-files/mysql.server /etc/init.d/mysql.server
安装之前首先检查有没有mysql的进程，如果有我们还安装个啥
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" exitfi
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-5.6.25-linux-glibc2.5-x86_64.tar.gz; cd /tmp; /bin/rm -rf mysql*.tar.gz /usr/bin/wget $mysqlDownloadURL;
好我们已经下载好了
下面开始进入正题
解压，建立软连接
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
添加用户和用户组（判断一下，如果没添加就添加一下）
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
下面初始化
/usr/local/mysql/scripts/mysql_install_db --datadir=/usr/local/mysql/data --user=mysql --basedir=/usr/local/mysql
说明一点！！！修改权限一定要在初始化之后，否则初始化之后的data目录不一定被附有权限
/bin/chown -R root.mysql /usr/local/mysql /bin/chown -R mysql.mysql /usr/local/mysql/data/
现在可以自己写一个配置文件放在/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
下面以mysql_safe方式启动
/usr/local/mysql/bin/mysqld_safe &
好下面启动mysqld
/usr/local/mysql/bin/mysqld restart
[[email protected] mysql]# ./bin/mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.6.25-log MySQL Community Server (GPL) 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ 4 rows in set (0.00 sec) mysql>
说明几点：
1.删除重新安装的时候一定要看看是不是mysqld 的进程全部杀死了（ps -ef|grep mysqld），如果有使用“kill -9 进程号”杀死不然会严重影响下次安装
2.可能是第二次在机器上安装mysql，有残余数据影响了服务的启动。去mysql的数据目录/data看看，如果存在mysql-bin.index，就删除掉
其他要说明的我在之前的安装过程中已经说明了
下面就是安装脚本的基本过程
#!/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-5.6.25-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
/usr/local/mysql/scripts/mysql_install_db --datadir=/usr/local/mysql/data --user=mysql --basedir=/usr/local/mysql /bin/chown -R root.mysql /usr/local/mysql /bin/chown -R mysql.mysql /usr/local/mysql/data/
#我的配置文件放到root目录下面了 /bin/cp $config/my.cnf /etc/ /usr/local/mysql/bin/mysqld_safe &
#/bin/chown -R mysql.mysql /usr/local/mysql/data/#/bin/cp $config/my.cnf /etc/ #cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld #chmod 755 /etc/init.d/mysqld
祝成功
时间： 2024-08-08 13:56:10