MySQL定时备份

MySQL备份所需账号权限

创建MySQL备份用户以及赋予相应权限：

create user bakuser@'%' identified by "bakuser";
GRANT SELECT, RELOAD, LOCK TABLES, REPLICATION CLIENT, SHOW VIEW, TRIGGER on *.* to bakuser@'%';

MySQL备份SHELL脚本

mysql备份脚本（back_mysql.sh）：

#!/bin/sh
#file_name:back_mysql.sh
PROFILE=/home/mysql/.bash_profile
. $PROFILE

##working_dir：back_mysql.sh和backlist.dat配置文件存在目录
##backlist.dat：需要备份的数据库清单文件，格式：每个数据库为一行
##backup_dir：备份文件存放目录
##mysql_buser：备份用户，需要根据实际情况调整
##mysql_bpwd：备份用户密码，需要根据实际情况调整
##备份用户创建语句以及相应的权限：
###create user bakuser@'%' identified by "bakuser";
###GRANT SELECT, RELOAD, LOCK TABLES, REPLICATION CLIENT, SHOW VIEW, TRIGGER on *.* to bakuser@'%';
##finish.txt：FTP确认该文件生成确认备份完成开始进行FTP传输

var_time=`date +%Y%m%d%H%M%S`
working_dir=/mysql/backup     
backup_dir=/mysql/backup/backup_$var_time
mysql_buser=bakuser       
mysql_bpwd=bakuser   

[ -d $working_dir ] || mkdir -p $working_dir
[ -d $backup_dir ] || mkdir -p $backup_dir

cd $working_dir
cat backlist.dat | while read line
do
  echo "***********************************************"
  echo "start "${line}" at: " `date +"%F_%T"` >> $backup_dir/back_mysql.log
  cd $backup_dir
  mysqldump -u"${mysql_buser}" -p"${mysql_bpwd}" --set-gtid-purged=OFF --single-transaction=TRUE "${line}" > backup_"${line}"_`date +%Y%m%d`.sql
  echo "finish "${line}" on: " `date +"%F_%T"` >> $backup_dir/back_mysql.log
done

echo "finish" > $backup_dir/finish.txt

backlist.dat：

docker
postgresql
oracle
mysql
chenzx

crontab 部署：

##mysql backup
0 2 * * 2 sh /mysql/backup/back_mysql.sh 2>/mysql/backupback_mysql.err