Linux系统mysql5.7数据库的全量备份和增量备份shell实例

曾经之前也有写过类似mysql全量和增量备份脚本，不过过于简单。昨天晚上给公司线上服务器写了个针对mysql5.7的，相对来讲更为优化的一个实例。

注：这个脚本仅仅适合小型数据库，不适合中大型数据库。毕竟是逻辑备份方式，数据库过大导入会比较慢，建议采用innobackupex方式备份，包括我自己服务器也是采用的innobackupex。

全量备份脚本：

#!/bin/bash
#bak mysql all
# v1.0
#2016.8.4
TIME=`date +%Y%m%d_%H%M%S`
LOGFILE="/home/mysqlbak/mysql_full_bak_time.log"
MYSQL_BAKDIR="/home/mysqlbak/full$TIME"
USER=root
PASSWORD=xxxxxx
[ ! -d $MYSQL_BAKDIR  ] &&  mkdir -p $MYSQL_BAKDIR
[ ! -e  $LOGFILE ] && touch  $LOGFILE
DATABASE=`mysqlshow  -u$USER  -p$PASSWORD  |  grep  -Ev "Data|info|per|sys" | grep  -v + | awk '{print  $2}'`
for bakmysqlname in $DATABASE
do
mysqldump  -u$USER  -p$PASSWORD  $bakmysqlname  --skip-lock-tables > $MYSQL_BAKDIR/$TIME_$bakmysqlname.sql
tar zcf $MYSQL_BAKDIR/$TIME_$bakmysqlname.tar.gz   $MYSQL_BAKDIR/$TIME_$bakmysqlname.sql --remove-files &> /dev/null
done
ret=$?
FINISHTIME=`date +%Y%m%d_%H%M%S`
 
[ $ret -eq 0 ] && echo  "Mysql fullbakup  finished, time: $FINISHTIME">>  $LOGFILE || echo "Mysql fullbakup failed,please check time:$FINISHTIME" >>  $LOGFILE

增量备份脚本：

#!/bin/bash
#bak incr for mysql
#2016.8.4
TIME=`date +%Y%m%d_%H%M%S`
DATADIR=/data/mysql
LOGFILE="/home/mysqlbak/mysql_incr__bak_time.log"
USER=root
PASSWORD=xxxxxx
MYSQL_BAKDIR=/home/mysqlbak/incr$TIME
[ ! -d $MYSQL_BAKDIR ] && mkdir -p $MYSQL_BAKDIR
[ ! -e  $LOGFILE ] && touch  $LOGFILE
mysqladmin   -u$USER -p$PASSWORD  flush-logs
TOTAL=`ls $DATADIR/mysql-bin.*  |wc -l`
TOTAL=`expr $TOTAL - 2`
for filetemp  in `ls $DATADIR/mysql-bin.*|head -n $TOTAL`
do
incrfilename=`basename $filetemp`
cp  $filetemp   $MYSQL_BAKDIR/$incrfilename
tar zcf $MYSQL_BAKDIR/$incrfilename.tar.gz  $MYSQL_BAKDIR/$incrfilename --remove-files &> /dev/null
done
ret=$?
FINISHTIME=`date +%Y%m%d_%H%M%S`
[ $ret -eq 0 ] && echo  " Mysql incr bak finished,time: $FINISHTIME">> $LOGFILE || echo  " Mysql incr bak failed,please check.time: $FINISHTIME">> $LOGFILE