mysql5.1多实例+主从配置脚本--基于MYISAM

mysql5.1多实例+主从配置脚本--基于MYISAM

#!/bin/sh

#multi-instance

#usage sh tl2.sh $1 $2

hostip=`/sbin/ifconfig eth0|grep -i "inet addr"|awk '{print $2}'|awk -F"." '{print $3$4}'`

echo $hostip

cnf=/etc/my.cnf

#配置my.cnf

if [ -f "$cnf" -a ! -f "${cnf}.bak" ];then

cp $cnf $cnf.bak

fi

multi=`cat /etc/my.cnf|grep -i -w "mysqld_multi"`

if [ "${multi}" = "" ];then

sed -i '4a\[mysqld_multi]\nmysqld = /usr/local/mysql/bin/mysqld_safe\n' $cnf

fi

masterip=$1

lastip=`echo "$1"|awk -F'.' '{print $3$4}'`

sed -i '6a\[mysqld'${lastip}']\nsocket = /tmp/mysql.sock'${lastip}'\nport = '$2'\npid\-file = '${hostip}'.pid'${lastip}'\ndatadir = /usr/local/mysql/var'${lastip}'\nrelay\-log = '${hostip}'\-relay\-bin\-'${lastip}'\n' $cnf

#生成数据文件

if [ -d /app/mysql/var ];then

/app/mysql/bin/mysql_install_db --datadir=/app/mysql/var${lastip} --user=mysql

chown -R mysql.mysql /app/mysql/var*

fi

#解压主库备份+mysql.tar

cd /app/mysql/var${lastip}

gs=`ls -l /app/dbbackup|grep -i "${lastip}"|awk -F'.' '{print $2}'`

case "$gs" in

zip)

unzip /app/dbbackup/${lastip}*

;;

rar)

unrar x /app/dbbackup/${lastip}*

;;

tar)

tar xvf /app/dbbackup/${lastip}*

;;

tgz)

tar zxvf /app/dbbackup/${lastip}*

;;

esac

sleep 5

tar xvf /root/mysql.tar

sleep 1

chown -R mysql:mysql .

#配置主从

mysql_bin=/app/mysql/bin

mysql_sock=/tmp/mysql.sock

#${mysql_bin}/mysqld_multi stop ${lastip}

#${mysql_bin}/mysqladmin -S ${mysql_sock}${lastip} shudown -pmys

ps -ef|grep 'port=$2'|grep -v grep|awk '{print $2,$3}'|xargs -n1 kill -9

${mysql_bin}/mysqld_multi start ${lastip}

sleep 1

${mysql_bin}/mysql -uroot -S ${mysql_sock}${lastip} -pmysql_ -e "slave stop;CHANGE MASTER TO MASTER_HOST='$1',MASTER_USER='repl',MASTER_PASSWORD='repl_SGH1H',MASTER_LOG_FILE='log-bin.000001',MASTER_LOG_POS=0;slave start;"

sleep 2

${mysql_bin}/mysql -uroot -S ${mysql_sock}${lastip} -pmysql_ -e "show slave status\G;"