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mariadb galare cluster是一套高可用全主MySQL集群方案，优势高度数据一致性。
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脚本：
#!/bin/bash
# Author: laocao
# Date: 2016/05/03
# Revision: 1.0
if [ ! -f "/etc/yum.repos.d/mariadb.repo" ];then
echo "[mariadb]" >>/etc/yum.repos.d/mariadb.repo
echo "name = MariaDB" >>/etc/yum.repos.d/mariadb.repo
echo "baseurl = http://yum.mariadb.org/10.0/centos6-amd64" >>/etc/yum.repos.d/mariadb.repo
echo "enabled = 1" >>/etc/yum.repos.d/mariadb.repo
echo "gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB" >>/etc/yum.repos.d/mariadb.repo
echo "gpgcheck=1" >>/etc/yum.repos.d/mariadb.repo
echo -e "\033[32m add mariadb yum repo successflly \033[0m"
yum makecache
else
echo -e "\033[31m mariadb.repo has exist! noting to do \033[0m"
fi
echo ""
echo "#######install MariaDB-Galera-server galera MariaDB-client#######"
yum -y install MariaDB-Galera-server galera MariaDB-client
echo -e "\033[32m install MariaDB success \033[0m"
echo ""
if [ ! -d /data/DBdata ];then
mkdir /data/DBdata
mkdir /data/binlog
chown -R mysql.mysql /data/DBdata
chown -R mysql.mysql /data/binlog
echo -e "\033[32m create DBdata and binlog directories successflly! \033[0m"
else
echo -e "\033[31m /data/DBdata has exist! noting to do \033[0m"
fi
echo ""
echo "#####mysql_install_db####"
mysql_install_db --user=mysql --datadir=/data/DBdata
echo -e "\033[32m mysql_install_db has completed \033[0m"
echo ""
echo -e "\033[31m you need copy wsref.cnf to /etc/my.cnf.d/ \033[0m"
echo -e "\033[31m you can start database manually \033[0m"