mysql主从集群定时备份脚本

#!/bin/bash

 

dpath="/mysql_backup"

mydays="7"

username="root"

mysql_pwd="redhat"

xmysql="/application/mysql/bin/mysql -u$username -p${mysql_pwd}"

xmysqldump="/application/mysql/bin/mysqldump  -u$username -p${mysql_pwd}"

today=`date +%Y%m%d`

old_backup_dir=`date -d "-${mydays} day" +%Y%m%d`

 

if [ -d $old_backup_dir ];then

  rm -rf $old_backup_dir

fi

 

if [ ! -d $today  ]; then

  mkdir -p $dpath/$today

  cp /etc/my.cnf $dpath/$today

fi

 

 

$xmysql -e "show databases;"|grep -vE "(Database|_schema)" > $dpath/db_list

$xmysql -e "flush tables with read lock;"

 

while read dbname

do

 

  if [ ! -d $dpath/$today/$dbname ];then

    mkdir -p $dpath/$today/$dbname

  fi

 

#######################

  #echo $dbname

  $xmysql -e "use $dbname; show tables;"|grep -vE "(Tables_in|general_log|slow_log)" > $dpath/table_list

 

  while read tablename

  do

    #echo "echo $tablename"

    $xmysqldump $dbname $tablename -R --events --triggers > $dpath/$today/$dbname/$tablename.sql

    done < $dpath/table_list

#######################

done < $dpath/db_list

 

rm -rf $dpath/db_list

rm -rf $dpath/table_list

 

ls -al /application/mysql/data/mysql-bin* | grep -v mysql-bin.index  | tail -1 | awk '{print $5,$9}'| awk -F'/' '{print $1,$5}' > /mysql_backup/$today/position.txt

 

$xmysql -e "unlock tables;"

 

来自为知笔记(Wiz)