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53 lines
1.5 KiB
53 lines
1.5 KiB
#!/usr/bin/bash
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<<!
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mysql 物理备份脚本
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工具：xtrabackup 2.3.6
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备份策略：周日完整备份 周一、二、四、五增量备份 周三、六差异备份
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1、完全后台执行
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2、备份完整
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3、日志记录
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4、历史数据的处理
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!
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dbUser="root"
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dbPasswd="QianFeng@123"
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backCMD="/usr/bin/innobackupex"
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backDir="/backup"
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logPath="/var/log/backup.log"
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# 定义规则数组 0 完整备份 1 增量备份 2 差异备份
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# 数组的值是备份的方式，数组的下标是星期几
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rule=(0 1 1 2 1 1 2)
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# 0 1 2 3 4 5 6
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datetime=$(date +%w)
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full(){
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mv $logPath $backDir
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tar cvzf /tmp/mysql_back_`date +%F`.tar.gz "$backDir" && \
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rm -rf $backDir
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mkdir -p $backDir/{full,incr,diff}
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$backCMD --user=$dbUser --password=$dbPasswd $backDir/full
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echo "full `ls $backDir/full |tail -n 1`" >> $logPath
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}
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other(){
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# $1 incr|diff 备份的类型
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# $2 需要基于的完整路径
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$backCMD --user=$dbUser --password=$dbPasswd --incremental $backDir/$1 --incremental-basedir=$2
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echo "$3 `ls $backDir/$3 |tail -n 1`" >> $logPath
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}
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case ${rule[$datetime]} in # ${rule[5]}
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0)
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full
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;;
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1)
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type=$(tail -n 1 $logPath|awk '{print $1}') # 获取上一次备份的类型
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time=$(tail -n 1 $logPath|awk '{print $2}') # 获取上一次备份的目录
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other incr $backDir/$type/$time incr
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# /backup/full/2022-05-22_00-00-05
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;;
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2)
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time=$(grep full $logPath|awk '{print $2}')
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other diff $backDir/full/$time diff
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;;
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esac
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