#!/bin/bash
#auto make install Mysql AB Relication
#by author max
#date 2017-05-04
MYSQL_SOFT="mysql mysql-server mysql-devel php-mysql"
NUM=`rpm -qa |grep -i mysql |wc -l`
CODE=$?
#Mysql To Install 2017
if [ $NUM -ne 0 ];then
echo -e "\033[32mThis server mysql already install.\033[0m"
read -p "Please ensure yum remove mysql server , Yes or No[y/n]": INPUT
if [ $INPUT == "y" ];then
yum remove $MYSQL_SOFT -y
rm -rf /var/lib/mysql /etc/my.cnf
yum -y install $MYSQL_SOFT
else
exit 0
fi
else
rm -rf /var/lib/mysql
yum -y install $MYSQL_SOFT
if [ $CODE -eq 0 ];then
echo -e "\033[32mThe mysql install successfully.\033[0m"
exit 1
fi
fi
#mysql to start and config
cat >/etc/my.cnf<<EOF
[mysqld]
datadir=/car/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
symbpolic-links=0
log-bin=mysql-bin
server-id=1
auto_increment_offset=1
auto_increment_increment=2
[mysql_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysql/mysqld.pid
replicate-do-db=all
EOF
/etc/init.d/mysqld restart
ps -ef |grep mysql
function MYSQL_CONFIG(){
#master config mysql
mysql -e "grant replication slave on *.* to 'max'@'%' identified by 'zhaomiao';"
MASTER_FILE=`mysql -e "show master status;"|tail -1|awk '{print $1}'`
MASTER_POS=`mysql -e "show master status;"|tail -1|awk '{print $2}'`
MASTER_IPADDR=`ifconfig eth0 |grep "Bcast"|awk '{print $2}'|cut -d: -f2`
read -p "please enter input slave ip address": SLAVE_IPADDR
#slave config mysql
ssh -l root $SLAVE_IPADDR "sed -i 's#server-id = 1#server-id = 2#g' /etc/my.cnf"
ssh -l root $SLAVE_IPADDR "/etc/init.d/mysqld restart"
ssh -l root $SLAVE_IPADDR "mysql -e \"change master to master_host='$MASTER_IPADDR',master_user='max',master_password='zhaomiao',master_log_file='$MASTER_FILE',master_log_pos=$MASTER_POS;\""
ssh -l root $SLAVE_IPADDR "mysql -e \"slave start;\""
ssh -l root $SLAVE_IPADDR "mysql -e \"show slave status\G;\""
}
read -p "please ensure your server is master ? yes or no[y/n]": INPUT
if [ $INPUT == "y" ];then
MYSQL_CONFIG
else
exit 0
fi