MySQL定时自动备份与自动恢复

需求:主机A每日凌晨三点自动备份dump,然后发送的主机B上。主机B每日凌晨四点自动恢复该dump。

主机AIP:10.180.50.24

主机BIP:10.180.50.23

1、主机Ashell脚本:backup.sh

#!/bin/sh 
cd /bak/bakmysql
echo "============MySQL自动备份开始============"

BackFolder=/usr/bak/mysqldump
Now=$(date +"%Y%m%d") 
file=_dump_$Now.sql.gz

echo "[1/5]移动前一日备份文件开始..."
mv *_dump_* $BackFolder
echo "移动前一日备份文件完成"

echo "---------------------------------"

echo "[2/5]数据库scpnf备份开始..."
mysqldump -udump -p'dump' scpnf | gzip > scpnf$file
echo "数据库scpnf备份完成"
echo "---------------------------------"
echo "[3/5]数据库fecs备份开始..."
mysqldump -udump -p'dump' fecs | gzip > fecs$file 
echo "数据库fecs备份完成"
echo "---------------------------------"
echo "[4/5]远程复制数据库备份文件开始..."
scp *$file [email protected]:/usr/dbbackup
echo "远程复制数据库备份文件完成"
echo "---------------------------------"
echo "[5/5]三天前备份文件清理开始..."
RetainDay=$(date -d -3day  +"%Y%m%d") 
RetainDayFile=_dump_$RetainDay.sql.gz

if [ -f $BackFolder/scpnf$RetainDayFile ] 
then
rm -rf $BackFolder/scpnf$RetainDayFile 
echo "成功删除备份文件scpnf$RetainDayFile"
else
echo "无法找到备份文件scpnf$RetainDayFile"
fi

if [ -f $BackFolder/fecs$RetainDayFile ] 
then
rm -rf $BackFolder/fecs$RetainDayFile 
echo "成功删除备份文件fecs$RetainDayFile"
else
echo "无法找到备份文件fecs$RetainDayFile"
fi

echo "============MySQL自动备份完成============"

2、将主机Ashell脚本:backup.sh加入计划任务

vim /etc/crontab

0 3 * * * root /bak/bakmysql/backup.sh

3、主机B自动恢复shell脚本:mysql_restore.sh

####################################################################
#
#说明:每天凌晨4点自动从备份脚本恢复数据库scpnf和fecs库,并删除三天前的备份文件。
#
####################################################################
#!/bin/sh 
cd /usr/dbbackup
echo "======================================"

#备份文件名称
File=_dump_$(date +"%Y%m%d").sql.gz
echo "1/3:数据库[fecs]开始恢复..."
gunzip < fecs$File | mysql -uroot -p'password' fecs
echo "数据库[fecs]恢复成功!"
echo "------------------------------------"

echo "2/3:数据库[scpnf]开始恢复..."
gunzip < scpnf$File | mysql -uroot -p'password' scpnf
echo "数据库[scpnf]恢复成功!"
echo "------------------------------------"

echo "3/3:准备删除三天前的数据备份文件..."
RetainDays=$(date -d -3day  +"%Y%m%d") 

#删除fecs备份文件
if [ -f ./fecs_dump_$RetainDays.sql.gz ] 
then
rm -rf ./fecs_dump_$RetainDays.sql.gz
echo "成功删除文件:fecs_dump_$RetainDays.sql.gz"
else
echo "没有找到备份文件:fecs_dump_$RetainDays.sql.gz"
fi

#删除scpnf备份文件
if [ -f ./scpnf_dump_$RetainDays.sql.gz ] 
then
rm -rf ./scpnf_dump_$RetainDays.sql.gz
echo "成功删除文件:scpnf_dump_$RetainDays.sql.gz"
else
echo "没有找到备份文件:scpnf_dump_$RetainDays.sql.gz"
fi
echo "======================================"

4、将主机Bshell脚本:backup.sh加入计划任务

vim /etc/crontab

0 4 * * * root /usr/dbbackup/mysql_restore.sh

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