这篇文章上次修改于 2449 天前，可能其部分内容已经发生变化，如有疑问可询问作者。 #!/bin/sh unset LANG LC_ALL=C export LC_ALL PATH=$PATH:/usr/local/mysql/bin export PATH user=root password=PASSWORD master_host="192.168.0.250" port=3306 master_port=3306 datadir="/data" backup_lv_name="/dev/vg/data" backup_path="/home/backup" backup_dir="mysql" backup_binlog_dir="binlog" backup_binlog_name="binlog_`date +%Y%m%d --date='1 days ago'`" backup_binlog_expire="binlog_`date +%Y%m%d --date='7 days ago'`" remote_backup_host="192.168.0.200" remote_backup_path="/data/databases" remote_backup_name="`date +%w --date='1 days ago'`.tar.bz2" remote_backup_binlog_name="binlog_`date +%w --date='1 days ago'`.tar.bz2" ## 停止 slave mysql -u$user -p$password -P$port -e 'slave stop' ## 创建 MySQL 数据 逻辑卷 的快照 modprobe dm-snapshot lvcreate -l 486 -s -n mysql_snap $backup_lv_name ## 开始 slave mysql -u$user -p$password -P$port -e 'slave start' ## 获得需要备份的 binlog 名 backup_binlog=`mysql -u$user -p$password -P$port -e 'show slave status\G' | grep Master_Log_File | awk '{print $2}' | uniq` ## 刷新 master 的 binlog mysql -u$user -p$password -h$master_host -P$master_port -e 'flush logs' ## 备份 binlog scp $master_host:$datadir/$backup_binlog $backup_path/$backup_binlog_dir/$backup_binlog_name ## 清除已备份的 binlog curr_binlog=`mysql -u$user -p$password -P$port -e 'show slave status\G' | grep Master_Log_File | awk '{print $2}' | uniq` mysql -u$user -p$password -h$master_host -P$master_port -e 'purge master logs to "'$curr_binlog'"' ## 备份数据库文件 mount /dev/vg/mysql_snap /mnt/mysql_snap rsync -a --delete /mnt/mysql_snap/ $backup_path/$backup_dir/ ## 删除快照 umount /mnt/mysql_snap lvremove -f /dev/vg/mysql_snap ## 打包备份 binlog 并传送到远程备份主机 cd $backup_path/$backup_binlog_dir tar -cjpf - $backup_binlog_name | ssh $remote_backup_host "cat > $remote_backup_path/$remote_backup_binlog_name" ## 删除过期的 binlog rm -f $backup_binlog_expire ## 打包备份目录并传送到远程备份主机 cd $backup_path tar -cjpf - $backup_dir | ssh $remote_backup_host "cat > $remote_backup_path/$remote_backup_name"
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