Hive，
Hive:数据仓库
Hive:解释器,编译器,优化器等
Hive理解为hadoop的客户端
1.解压,2建立软连
3.conf目录下 cp -a hive-default.xml.template hive-site.xml
4.bin目录下启动 ./hive
Hive运行时一定有元数据,存储在关系型数据库里面
安装关系型数据库 yum install mysql-server
启动mysql service mysqld start
mysql 驱动包 cp -a mysql-connector-java-5.1.32-bin.jar /home/hive/lib/
使用mysql 命令登录到mysql
mysql> grant all on . to root@‘%’ identified by ‘zl’;
vi hive-site.xml
修改
javax.jdo.option.ConnectionURL
jdbc:mysql://mini1:3306/hive
JDBC connect string for a JDBC metastore
javax.jdo.option.ConnectionDriverName
com.mysql.jdbc.Driver
Driver class name for a JDBC metastore
javax.jdo.option.ConnectionUserName
root
password to use against metastore database
javax.jdo.option.ConnectionPassword
zl
password to use against metastore database