Linux服务器数据库(MySQL、Oracle)简单的异地备份方案
Linux服务器数据库(MySQL、Oracle)简单的异地备份方案
Linux服务器MySQL数据库简单的异地备份方案
首先简单说下:
1、执行脚本导出数据库。
mysqldump -h127.0.0.1 -P3306 -uroot -ppassword dbname > /bak/db/backup.sql
2、使用scp将导出的数据库文件传输到其他服务器上,,一般进行异地备份,容灾。
scp -P 195 /bak/db/backup.sql root@xxx.xxx.xxx.xxx:/bak
其中195为ssh端口号,如果是默认的22,可以省略 -P 22。
-----------------------------------------------------------------------------------------------------------------
现在需要编写一个sh脚本,并设定到定时任务中
sh脚本内容如下:
#!/bin/sh
filename=`date '+%Y%m%d-%H%M%S'`
filename="${filename}bak.sql"
mysqldump -h127.0.0.1 -P3306 -uroot -ppassword dbname > /bak/db/${filename}
scp -P 195 /bak/db/${filename} root@xxx.xxx.xxx.xxx:/bak
echo "success"
sh文件不要忘记使用 chmod +x backup.sh 进行授予可执行权限。
假设我们将sh文件存放与opt目录下,需要配置一下定时任务
编辑文件:vi /etc/crontab 设定每天凌晨4点半执行
30 04 * * * root /bin/sh /opt/db/backup-database.sh
可以使用命令:cat /var/log/cron 查看定时任务执行日志
如上处理后,服务器就会自动进行数据库备份并上传到异地服务器上了,但是有个问题还需要解决,那就是让scp命令不需要密码才行。
具体配置方法参考我的另一篇文章:

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