mysql全量备份和增量备份脚本

vim MYSQL_FULLBAK.sh //全量备份 ,每周一次

#!/bin/bash
#set -x
############################################################
if [ $# -ne 2 ];then echo "Usage:依次输入参数: <ROOTPASSWD> <BAKDIR> ";exit 1
fiif ! ps -ef | grep -v "grep"|grep -q "mysqld ";thenecho "未检测到mysql进程"exit 1
fi
############################################################
# 入参
PASSWD=$1
BAKDIR=$2
############################################################
# PORT && HOST && MYSQLHOME && BAKDIR
PORT=$(netstat -lanp | grep LISTEN | grep "mysqld"|awk -F ":" 'NR==1{print $4}')
MYSQL_HOME=$(ps -ef | grep -v "grep"|grep "mysqld "|tr -s ' ' '\n'|grep "\-\-basedir"|awk -F "=" '{print $NF}')
PATH=$MYSQL_HOME/bin:$PATHlocalnetcard=$(route -n|grep UG|head -n 1|awk '{print $NF}')
if [ ! "$localnetcard" == "" ];thenHOST=$(ip -4 addr show $localnetcard|awk -F '[/ ]' '{for(i=1;i<=NF;i++){if($i~"[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}"){print $i;break}}}'|awk 'NR==1{print $0}')
fiif [ ! -d $BAKDIR ];thenmkdir -p $BAKDIRchown -Rf mysql:mysql  $BAKDIR
fi
############################################################
# 主从
LANG=C
MYSQL_CONN="mysql -uroot -p$PASSWD  -h$HOST -P$PORT -s -e"
MHOST=$($MYSQL_CONN "show slave status\G" | grep -i "Master_Host:")
if [ "X$MHOST" != "X" ];thenecho "current is Slave, got Master Info..." MPORT=$($MYSQL_CONN "show slave status\G" | grep -i "Master_Port:")if [ "X$MPORT" != "X" ]; thenHOST=$(echo $MHOST | awk '{ print $2 }')PORT=$(echo $MPORT | awk '{ print $2 }')MYSQL_CONN="mysql -uroot -p$PWD -h$HOST -P$PORT -s -e"fi
fi
############################################################
# 备份时间
TIME=$(date +"%Y%m%d%H%M%S")
# 备份文件名
DUMPFILE=FULL_$TIME.sql
GZDUMPFILE=FULL_$TIME.sql.tgz
############################################################
# 开始备份
cd $BAKDIR
LAST=$(date +"%Y年%m月%d日 %H:%M:%S")
mysqldump -uroot -p$PASSWD  -h$HOST -P$PORT --quick --events --all-databases  >$DUMPFILE 2>&1
if [ $? -eq 0 ];thentar -czf $GZDUMPFILE $DUMPFILE 2>&1rm -f $DUMPFILE echo "***********$GZDUMPFILE******************"         echo "***********${LAST}全量备份成功******************"  
elserm -f $DUMPFILEecho "***********${LAST}全量备份失败******************"  exit 1
fi
############################################################
# 清理备份,保留1个月
COUNT=$(ls -lrt *.tgz | wc -l)
if [ "$COUNT" -gt 4 ];thenFILE=$(ls -lrt  *.tgz |awk 'NR==1{print $NF}')rm -f $FILE
fi# 删除增量
#if [ -d "/data/backup/increment" ];then#rm -f /data/backup/increment/* 
#fi

vim MYSQL_INCREMENT_BAK.sh //增量备份，每天一次

#!/bin/bash
#set -x
############################################################
if [ $# -ne 2 ];then echo "Usage:依次输入参数: <ROOTPASSWD> <BAKDIR>";exit 1
fiif [ "$UID" != 0 ];thenecho "must be root"exit 1
fi if ! ps -ef | grep -v "grep"|grep -q "mysqld ";thenecho "未检测到mysql进程"exit 1
fi
############################################################
# 入参
PASSWD=$1
BAKDIR=$2
############################################################
# PORT && HOST && MYSQLHOME && BAKDIR
PORT=$(netstat -lanp | grep LISTEN | grep "mysqld"|awk -F ":" 'NR==1{print $4}')
MYSQL_HOME=$(ps -ef | grep -v "grep"|grep "mysqld "|tr -s ' ' '\n'|grep "\-\-basedir"|awk -F "=" '{print $NF}')
PATH=$MYSQL_HOME/bin:$PATHlocalnetcard=$(route -n|grep UG|head -n 1|awk '{print $NF}')
if [ ! "$localnetcard" == "" ];thenHOST=$(ip -4 addr show $localnetcard|awk -F '[/ ]' '{for(i=1;i<=NF;i++){if($i~"[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}"){print $i;break}}}'|awk 'NR==1{print $0}')
fiif [ ! -d $BAKDIR ];thenmkdir -p $BAKDIRchown -Rf mysql:mysql  $BAKDIR
fi
############################################################
# 主从
LANG=C
MYSQL_CONN="mysql -uroot -p$PASSWD  -h$HOST -P$PORT -s -e"
MHOST=$($MYSQL_CONN "show slave status\G" | grep -i "Master_Host:")
if [ "X$MHOST" != "X" ];thenecho "current is Slave, got Master Info..." MPORT=$($MYSQL_CONN "show slave status\G" | grep -i "Master_Port:")if [ "X$MPORT" != "X" ]; thenHOST=$(echo $MHOST | awk '{ print $2 }')PORT=$(echo $MPORT | awk '{ print $2 }')MYSQL_CONN="mysql -uroot -p$PASSWD -h$HOST -P$PORT -s -e"fi
fi
############################################################
if $MYSQL_CONN "show variables like 'log_%';" |egrep -i -q "log_bin[[:space:]]ON";then# binlog生成目录BINDIR=$($MYSQL_CONN "show variables like 'log_%';" |egrep -i "log_bin_basename"|awk '{print $NF}'|awk -F "mysql-bin|" '{print $1}')   # binlog索引BINFILE=$($MYSQL_CONN "show variables like 'log_%';" |egrep -i "log_bin_index"|awk '{print $NF}')TIME=$(date +"%Y年%m月%d日 %H:%M:%S")# 产生新的mysql-bin.00000*文件mysqladmin -uroot -p$PASSWD  -h$HOST -P$PORT flush-logsif [ $? -ne 0 ];thenecho "***********${TIME}增量备份失败******************"  exit 1fi
elseecho "mysql 未开启binlog日志"exit 1
fi
############################################################
COUNT=$(wc -l $BINFILE |awk '{print $1}')
i=0
cat $BINFILE|while read line;do   BINNAME=$(basename $line)i=$(expr $i + 1)if [ $i -ne $COUNT ];thendest=$BAKDIR/$BINNAMEif [ ! -e $dest ];thencp $BINDIR/$BINNAME $BAKDIRif [ $? -eq 0 ];thenecho "***********${TIME} $BINNAME增量备份成功******************"  elseecho "***********${TIME} $BINNAME增量备份失败******************"  exit 1fi   fifi
done

//赋权

chmod +x /data/backup/*.sh

定时任务

crontab -e
#每个星期日凌晨23:00执行完全备份脚本
0 23 * * 0 sh /data/backup/MYSQL_FULLBAK.sh /back1 123456 >/dev/null 2>&1
#周一到周六凌晨23:00做增量备份
0 23 * * 1-6 sh /data/backup/MYSQL_INCREMENT_BAK.sh /back2 123456>/dev/null 2>&1