（一）hive远程模式搭建

离线安装MySQL
主结点master上执行
# scp -r /opt/soft/mysql-5.7.18-1.el7.x86_64.rpm-bundle.tar :/usr/ 发安装包
转至子结点slave2操作
# rpm -qa|grep mariadb  检查：这是离线包安装方式所以要检查并且卸载mariadb
# rpm -qa|grep mariadb|xargs rpm -e --nodeps  卸载
# mkdir /usr/mysql  建立MySQL目录
# tar -xvf mysql-5.7.18-1.el7.x86_64.rpm-bundle.tar -C /usr/mysql  解压
# cd /usr/mysql  进入MySQL目录下依次执行安装
# rpm -ivh mysql-community-common-5.7.18-1.el7.x86_64.rpm
# rpm -ivh mysql-community-libs-5.7.18-1.el7.x86_64.rpm
# rpm -ivh mysql-community-client-5.7.18-1.el7.x86_64.rpm
# rpm -ivh mysql-community-server-5.7.18-1.el7.x86_64.rpm
# rpm -ivh mysql-community-devel-5.7.18-1.el7.x86_64.rpm
# rpm -ivh mysql-community-libs-compat-5.7.18-1.el7.x86_64.rpm
# systemctl start mysqld  启动MySQL服务
# systemctl enable mysqld 开机自启
# grep "temporary p" /var/log/mysqld.log  获取MySQL的临时密码复制密码
# mysql -uroot -p临时密码
# set global validate_password_policy=0;  修改密码强度为最低
# set global validate_password_length=4;  修改密码的长度为4
# alter user "localhost" identified by "master";  修改root的密码为master
# use mysql;  切换到MySQL数据库下
# update user set host="%" where user="root";  修改host为%表示让所有结点机器能连接
# flush privileges;  刷新
# \q  退出