mysql数据库定时备份,linux服务器数据异地备份

xiaoxiao2021-02-28  19

一:备份mysql数据库

(1)编写备份脚本
#!/bin/bash #设置mysql备份目录 folder=/home/javaweb/rsc/mysql/rsc-boot cd $folder day=`date +%Y%m%d` rm -rf $day mkdir $day cd $day #数据库服务器,一般为localhost host=localhost #用户名 user=root #密码 password=passwd #要备份的数据库 db=database #数据要保留的天数 days=10 mysqldump -h$host -u$user -p$password $db>backup.sql #zip backup.sql.zip backup.sql #rm backup.sql cd .. day=`date -d "$days days ago" +%Y%m%d` rm -rf $day
(2)添加定时任务

[root@localhost mysql]# crontab -e

#每天凌晨三点执行任务

00 3 * * * /home/javaweb/rsc/mysql/rsc-bootbackup.sh

通过下面这条命令查看执行过程中打印内容

vim /var/spool/mail/root

二:远程备份数据

这里由服务器A内容同步到服务器B

(1)检测两个服务器是否安装rsync服务
[root@localhost mysql]# rpm -qa rsync
(2)在两个服务器上安装rsync服务
[root@localhost mysql]# yum install rsync
(3)启动rysnc服务
[root@localhost ~]# rsync --daemon
(4)设置开机自动启动
[root@localhost mysql]# vim /etc/rc.local

加入下面命令

/usr/bin/rsync --daemon
(5)在服务器A上执行下述命令
[root@localhost ~]# vim /etc/rsyncd.conf # /etc/rsyncd: configuration file for rsync daemon mode # # # See rsyncd.conf man page for more options. # # # configuration example: # uid = root gid = nobody # # use chroot = yes max connections = 10 pid file = /var/run/rsyncd.pid log file = /var/log/rsyncd.log  # exclude = lost+found/  # transfer logging = yes  # timeout = 900  # ignore nonreadable = yes  # dont compress   = *.gz *.tgz *.zip *.z *.Z *.rpm *.deb *.bz2  [data]  path=/home/javaweb/rsc/  transfer logging = yes  #ignore errors    read only = no  list = no  hosts allow = *  auth users = root  secrets file = /etc/rsyncd.secrets  # [ftp]  #        path = /home/ftp  #        comment = ftp export area
(6)设置服务器AB

创建密码文件,防火墙设置,客户端和服务器端都要做如下操作

echo "tom:123" > /etc/rsyncd.secrets

chmod 600 /etc/rsyncd.secrets

echo "welcome to access" > /etc/rsyncd.motd  #此项客户端不需要做

rsync --daemon    # --daemon表示后台执行,客户端开启rsync不需要--daemon选项

echo "/usr/bin/rsync --daemon >> /etc/rc.local    #开机启动rsync服务

(7)同步命令 客户端执行
[root@localhost rsc]# rsync -vzrtopg --progress root@172.16.20.83::data /home/javaweb/rsc/ --password-file=/etc/rsyncd.secrets

rsync: failed to connect to 172.16.20.84 (172.16.20.84): No route to host (113)

开放服务器B防火墙873端口

iptables -I INPUT -p tcp --dport 873 -j ACCEPT

rsync error: error starting client-server protocol (code 5) at main.c(1516) [sender=3.0.9]

(8)添加定时任务

[root@localhost mysql]# crontab -e

#每天凌晨三点执行任务

00 3 * * * rsync -vzrtopg --progress root@172.16.20.83::data /home/javaweb/rsc/ --password-file=/etc/rsyncd.secrets

转载请注明原文地址: https://www.6miu.com/read-1950240.html

最新回复(0)