L007-oldboy-mysql-dba-lesson07

[root@web01 ~]# mysqldump -uroot -ptestpassword -A >/root/mysql_backup/testbackup20141026.sql  #全库备份

[root@web01 ~]# mysqladmin -uroot -ptestpassword shutdown    #关库

[root@web01 ~]# /usr/local/mysql/bin/mysqld_safe --defaults-file=/var/lib/mysql/my.cnf &    #启动

[root@web01 ~]# mysql  -ptestpassword < /root/mysql_backup/testbackup20141026.sql     #恢复

[root@web01 ~]# mysqldump -uroot -ptestpassword mydb> /root/mysql_backup/mydb_20141026.sql  #备份单个库

[root@web01 ~]# mysql -uroot -ptestpassword mydb < /root/mysql_backup/mydb_20141026.sql       #恢复单个库

[root@web01 ~]# vi abc.sh    #分表备份脚本

#!/bin/bash

#author:DBA

#2016-06-12

#modify by DBA 2016-06-12

dbname="mydb"

dpath="/mysql_backup/$dbname"

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

if [ ! -d "$dpath" ]

then

mkdir -p $dpath

fi

mysql -uroot -ptestpassword -e "use $dbname;show tables;"|grep -v Tables_in_ > $dpath/table_list.txt

while read line

do

mysqldump -uroot -ptestpassword $dbname ${line} > /$dpath/${line}_$myday.sql

done <$dpath/table_list.txt

rm -rf $dpath/table_list.txt

[root@web01 ~]# vi backup.sh

#!/bin/bash

dpath="/mysql_backup"

mydays="7"

username="root"

mysql_pwd="testpassword"

xmysql="/usr/local/mysql/bin/mysql -S /tmp/mysql.sock -u$username -p${mysql_pwd}"

xmysqldump="/usr/local/mysql/bin/mysqldump -S /tmp/mysql.sock -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 /var/lib/mysql/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;"

[root@web01 ~]# vi backup2.sh

#!/bin/bash

dpath="/mysql_backup2"

if [ ! -d $dpath ]; then

mkdir -p $dpath

fi

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

before_day="$today 00:00:00"

mysql -S /tmp/mysql.sock -uroot -ptestpassword -e "PURGE MASTER LOGS BEFORE '$before_day'"

n=`ps waux | grep mysql |grep -v grep | awk '{print $2}' | wc -l`

if [ $n -gt 0 ];then

/usr/local/mysql/bin/mysqladmin -S /tmp/mysql.sock -u root -ptestpassword shutdown

fi

tar czf /mysql_backup2/mysql_`date +%w`.tar.gz /var/lib/mysql

/usr/local/mysql/bin/mysqld_safe --defaults-file=/var/lib/mysql/my.cnf &

m=`ps waux | grep mysql |grep -v grep | awk '{print $2}' | wc -l`

if [ $m -ge 2 ];then

echo "start fail"

fi