mysql逻辑备份2种方案

Posted 2020-06-16

mysql逻辑备份方案：

1. 针对db进行逻辑备份（由于数据量较小，正在生产环境使用）。

   
   

   mysql_backup.sh 

   #!/bin/bash

   date=`date +%F-%H-%M`
   

   mkdir /opt/backup/${date} -p

   usesize=`du -s /opt/mysql |cut -f 1`

   biaozhun=`df  /opt/ |awk ‘END{print ("‘$usesize‘"+$3)/$2*100+0.5}‘|cut -d. -f1`

   ip=`grep IPADDR /etc/sysconfig/network-scripts/ifcfg-eth1 |cut -d = -f2`

   if [ $biaozhun -ge 85 ]

   then

   mysqldump --user=root  --flush-privileges --single-transaction  --master-data=1 --flush-logs --triggers --routines --events --hex-blob -B hbb meta_dm_config >/opt/backup/${date}/mysqlall${date}.sql
   

   
   

   echo " $ip disk is big,plase check" |sendmail -t "df" [email protected]

   echo 1

   else 

   
   

   mysqldump --user=root  --flush-privileges --single-transaction  --master-data=1 -flush-logs --triggers --routines --events --hex-blob -B hbb meta_dm_config >/opt/backup/${date}/mysqlall${date}.sql

   echo 2

   fi

2. 针对单个表进行逻辑备份。

   
   

   mysql_backup_per_table.sh 

   #!/bin/bash

   date=`date +%F`
   

   mkdir /opt/backup/${date}/hbb -p

   mysql -e "flush table with read lock;"

   #mysql -e "use hbb;show tables;" |grep -v Table >tables_list.txt
   

   for table_name in `mysql -e "use hbb;show tables;" |grep -v Table `

   do

   mysqldump --user=root --flush-privileges --single-transaction  --master-data=1 --flush-logs --triggers --routines --events --hex-blob mysql >/opt/backup/${date}/mysql.sql

   mysqldump --user=root --flush-privileges --single-transaction  --master-data=1 --flush-logs --triggers --routines --events --hex-blob hbb $table_name >/opt/backup/${date}/hbb/${table_name}.sql

   done

   mysql -e "unlock tables;"