MySQL数据库-分库分表备份(邮件推送通知)

公司新项目上线，今天建立全网备份，现在这记录的是Mysql部分
备份方式：全备+Binlog
备份地点：本地+异地
备份时间：每日0点，切割Binlog日志

1，环境介绍：

[root@jm1j-node1 scripts]# cat /etc/redhat-release 
CentOS release 6.8 (Final)
[root@jm1j-node1 scripts]# mysql -V
mysql  Ver 14.14 Distrib 5.6.35, for linux-glibc2.5 (x86_64) using  EditLine wrapper

2，规范脚本存放目录

mkdir -p /server/scripts       #规范是根本
[root@DB01 ~]# vi /server/scripts/mysqlbackup.sh  #创建脚本文件

3，编写脚本内容如下

#!/bin/bash
#---------------------------------------------------------
# $Name:         mysqlbackup.sh
# $Version:      v1.0
# $Author:       qiuyuetao
# $organization: https://www.dgstack.cn
# $Create Date:  2018-11-25
# $Description:  Mysql backup script
#---------------------------------------------------------

#source /etc/init.d/functions
DAY=`date +%Y-%m-%d\-%H-%M`
BACK_DIR="/data/backup/mysql/dump"
DBUSER="root"   #数据用户
DBPASSWD="***数据库密码"  
BIN_PATH="/application/mysql/bin" #全局变量，可以使用which获取
LOG="/var/log/mysqlback.log" #备份日志
CKLOG="/var/log/bkmd5-"$DAY".log" #md5加密日志，后期发送邮件

## Close all tables and refresh log ####
"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "flush logs"

#"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "flush tables with read lock"

echo "mysqldump start `date +%F\ %H\:%M\:%S`" >> "$LOG"

## Each backup database to the target location ####
for i in `"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "show databases" |grep -vE "Database|information_schema|performance_schema"`
  do
        if [ ! -d "$BACK_DIR"/"$i" ]; then
                mkdir -p  "$BACK_DIR"/"$i"
           fi
"$BIN_PATH"/mysqldump -u "$DBUSER" -p"$DBPASSWD" --default-character-set=utf8  --events --master-data=2 --lock-all-tables -f --log-error="$LOG" -B "$i"|gzip > "$BACK_DIR"/"$i"/"$DAY".sql.gz
md5sum "$BACK_DIR"/"$i"/"$(date +%F --date='0 days ago')"-*.sql.gz  >>$CKLOG
   done

echo "mysqldump stop `date +%F\ %H\:%M\:%S`" >> "$LOG"
echo "" >>"$LOG"

## Delete old 10day backup files 保留最近10天的数据####
for RM in `"$BIN_PATH"/mysql -u "$DBUSER" -p"$DBPASSWD" -e "show databases" |grep -vE "Database|information_schema|performance_schema"`
   do

rm -rf "$BACK_DIR"/"$RM"/$(date +%F --date='10 days ago')*.sql.gz
    done

echo 生产数据库备份完整性MD5初始值 |mail -s 备份校验 -a  "$CKLOG"  qiuyt@*****.com  ##自己的邮箱

4，添加执行权限

[root@DB01 ~]# chmod +x /server/scripts/mysqlbackup.sh    #添加执行权限

5，执行备份

[root@DB01 ~]# sh -x  /server/scripts/mysqlbackup.sh
##查看日志
[root@DB01 dump]# cat  /var/log/bkmd5-2018-11-25-12-32.log 
76e90da81b805721a9f252120921916b  /data/backup/mysql/dump/BITs/2018-11-25-12-32.sql.gz
f07b390f5adcdfab535a28bb7bedc86f  /data/backup/mysql/dump/mysql/2018-11-25-12-32.sql.gz
562d9f88075c9f4ff1b88c53a7c8367b  /data/backup/mysql/dump/test/2018-11-25-12-32.sql.gz
0edd81c125cf3ab03b0f2df1e7fdeda6  /data/backup/mysql/dump/test_wenda/2018-11-25-12-32.sql.gz
3ec3961ac32521a261c21038d47d8819  /data/backup/mysql/dump/vdms/2018-11-25-12-32.sql.gz
43dba97f279ccdd2c907619a58dc6593  /data/backup/mysql/dump/ylhc_test/2018-11-25-12-32.sql.gz

#如果没有发送邮件，请检查服务是否安装，启动，25端口是否启用等等，然后手动发送邮件测试

6,配置邮箱

1）查看是否安装mailx

[root@DB01 ~]# rpm -qa|grep mailx
mailx-12.4-8.el6_6.x86_64
libreport-plugin-mailx-2.0.9-32.el6.centos.x86_64

2）修改mail配置

set bsdcompat
set from=*****@163.com  #自己的邮箱
set smtp=smtp.163.com
set smtp-auth-user=*****@163.com  #自己的邮箱
set smtp-auth-password=***** ##授权码
set smtp-auth=login

如果无法收到邮件，请mail -s 手动测试

[root@DB01 ~]# echo "test" | mailx -v -s "tes88t" qiuyuetao@163.com

已收到邮件

7，定时备份 （正常可以加入crontab定时任务，每天0点执行）

上面没有找到，下面命令安装

yum install -y vixie-cron

添加定时任务

crontab -e
#mysqlbackup by qyt at 2018-11-25
00 00 * * * /bin/sh  /server/scripts/mysqlbackup.sh >/dev/null 2>&1

8，备份邮件通知

每天就会收到，备份的邮件通知，代表备份成功。

如果想异地备份，有多重方式，为了减少服务器压力，我使用rsync 客户端拉取方式

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