主从脚本（简写）
#!/bin/bash
################################################
#this scripts is created by zhangyj
#zhangyj QQ:791880666
#mobile phone:13716430471
#thanks for oldboy teacher
#Function: The Scripts for mysql-slave
################################################
####reload functions
[ ! -x /etc/init.d/functions ] && chmod +x /etc/init.d/functions
. /etc/init.d/functions
###The definition of the variable and dir
MYUSER=xxx
MYPASS="xxx"
MYSQL_PATH=/opt/mysql
DATA_PATH=/backup/mysql/data
LOG_PATH=/backup/mysql/log
Slave-Location=/home/zhangyj/mysql-slave
Slave-Db=/backup/mysql/slave
#####the definition of the file
LOG_FILE=${LOG_PATH}/mysql_logs_`date +%F-%H`.log
DATA_FILE=${DATA_PATH}/mysql_backup_`date +%F`.sql.gz
MYSQL_SLAVE_LOG=${Slave-Location}/mysql-slave.log
MYSQL_CMD="${MYSQL_PATH}/bin/mysql -u$MYUSER -p'$MYPASS'"
MYSQL_DUMP="${MYSQL_PATH}/bin/mysqldump -u$MYUSER -p$MYPASS -A -B --default-character-set=utf8 --single-transaction --events -e"
Lan_Ip="`ifconfig eth0|grep 'inet addr'|cut -d ":" -f2|cut -d " " -f1`"
Wlan_Ip="`ifconfig eth1|grep 'inet addr'|cut -d ":" -f2|cut -d " " -f1`"
Master_Ip="10.172.233.102"
Slave_Ip="10.172.229.182"
#mkdir dir
[ ! -d ${MYSQL_PATH} ] && mkdir -p ${MYSQL_PATH}
[ ! -d ${DATA_PATH} ] && mkdir -p ${MYSQL_PATH}
[ ! -d ${LOG_PATH} ] && mkdir -p ${MYSQL_PATH}
[ ! -d ${Slave-Location} ] && mkdir -p ${MYSQL_SLAVE_LOG}
[ ! -d ${Slave-Db} ] && mkdir -p ${Slave-Db}
###master_mysql-backup
master-mysql-backup(){
${MYSQL_CMD} -e "show master status;" | sed -n "2p" | awk '{print $1}' > ${Slave-Location}/test
${MYSQL_CMD} -e "show master status;" | sed -n "2p" | awk '{print $2}' >> ${Slave-Location}/test
echo "------------Begin-master-`date +%F-%H-%M`-----------" >> ${MYSQL_SLAVE_LOG} 2> /dev/null
$MYSQL_CMD -e "flush tables with read lock;"
echo "show master status result" >> ${MYSQL_SLAVE_LOG} 2> /dev/null
$MYSQL_CMD -e "show master status;" >> ${MYSQL_SLAVE_LOG} 2> /dev/null
${MYSQL_DUMP} | gzip > ${DATA_FILE} 2> /dev/null
$MYSQL_CMD -e "unlock tables;"
echo "------------End-master-`date +%F-%H-%M`-----------" >> ${MYSQL_SLAVE_LOG} 2> /dev/null
[ ! -d /home/zhangyj ] && mkdir -p /home/zhangyj
echo "fullbackup mysql-master-backup is ok " >> /home/zhangyj/master-backup-mysql 2> /dev/null
}
###slave-mysql-backup
slave-mysql-backup(){
####lock_table
echo "------------Begin-slave-`date +%F-%H-%M`-----------" >> ${MYSQL_SLAVE_LOG} 2> /dev/null
$MYSQL_CMD -e "flush tables with read lock;"
echo "show master status result" >> ${MYSQL_SLAVE_LOG} 2> /dev/null
$MYSQL_CMD -e "show master status;" >> ${MYSQL_SLAVE_LOG}
${MYSQL_DUMP} | gzip > ${DATA_FILE}
$MYSQL_CMD -e "unlock tables;"
echo "------------End-slave-`date +%F-%H-%M`-----------" >> ${MYSQL_SLAVE_LOG}
[ ! -d /home/zhangyj ] && mkdir -p /home/zhangyj
echo "fullbackup mysql-slave-backup is ok " >> /home/zhangyj/master-backup-mysql 2> /dev/null
}
################################
####restore fullbackup
restore-mysql(){
[ -d ${DATA_PATH} ] && cd ${DATA_PATH}
[ $? -eq 0 ] && gzip -d mysql_backup_`date +%F-%H`.sql.gz
[ $? -eq 0 ] && $MYSQL_CMD -default-character-set=utf8 < mysql_backup_`date +%F-%H-%M`.sql
[ $? -eq 0 ] && action "restore mysql is ok " /bin/true
}
#######start slave mysql
slave(){
echo "scp master db and db-log"
scp -rf root@${Master_Ip}:${DATA_PATH}/mysql_backup_`date +%F`.sql.gz ${Slave-Db}
[ $? -ne 0 ] && tail -30 $Log_File |tee -a ${Slave-Db}/err.log && exit 1;
gzip -d ${Slave-Db}/mysql_backup_`date +%F`.sql.gz
[ $? -ne 0 ] && tail -30 $Log_File |tee -a ${Slave-Db}/err.log && exit 1;
$MYSQL_CMD -default-character-set=utf8 < ${Slave-Db}/mysql_backup_`date +%F`.sql
[ $? -ne 0 ] && tail -30 $Log_File |tee -a ${Slave-Db}/err.log && exit 1;
scp -rf root@${Master_Ip}:${Slave-Location}/test ${Slave-Location}/
[ $? -ne 0 ] && tail -30 $Log_File |tee -a ${Slave-Db}/err.log && exit 1;
[ -f ${Slave-Location}/test ] && echo "slave test is ok" || exit 1
aa="`sed -n '1p' ${Slave-Location}/test`"
bb="`sed -n '2p' ${Slave-Location}/test`"
cat |$MYSQL_CMD<< EOF
CHANGE MASTER TO
MASTER_HOST=${Master_Ip},
MASTER_PORT=3306,
MASTER_USER=${MYUSER},
MASTER_PASSWORD=${MYPASS},
MASTER_LOG_FILE="${aa}",
MASTER_LOG_POS="${bb}";
EOF
$MYSQL_CMD -e "start slave;"
$MYSQL_CMD -e "show slave status\G"|egrep "Slave_IO_Running|Slave_SQL_Running|Seconds_Behind_Master" > ${Slave-Location}/IO-SQL
[ -f ${Slave-Location}/IO-SQL ] && cat ${Slave-Location}/IO-SQL || exit 1
read -p "1: yes 2: no" num
case "$num" in
1)
action "Mysql slave is sucess..." /bin/true
;;
2)
action "Mysql slave is false..." /bin/false
;;
*)
exit 1
;;
esac
}
######install menu
cat << EOF
----------------------------------------
|****Please Enter Your Choice:[1-3]****|
----------------------------------------
(1) Backup Master
(2) Backup Slave
(3) Restore mysql
(4) Mysql Slave
(5) EXIT
EOF
read -p "Please Enter Your Choice: " num
case "$num" in
1)
master-mysql-backup
;;
2)
slave-mysql-backup
;;
3)
restore-mysql
;;
4)
slave
;;
5)
exit 1
;;
esac