MySql安装及集成Hive手册

版本：my5.6.22-1.linux64

一.安装Mysql

1 判断centos上是否有安装，执行命令rpm -qa |grep mysql

2 如果已经安装，需要删除原有的，防止冲突，执行命令

$ rpm -e  mysql-libs-5.1.66-2.el6_3.i686  --nodeps

3 安装mysql的服务端，执行命令

$rpm -i MySQL-server-5.6.31-2.el6.i686.rpm

4 启动mysql服务，执行命令mysqld_safe &

5 安装mysql的客户端，执行命令rpm -i MySQL-client-5.6.31-2.el6.i686.rpm

6 设置root用户的密码，执行命令mysql_secure_installation

7 修改mysql允许远程访问，在mysql命令行下执行命令

>grant all on *.* to 'root'@'master' identified by ‘123456';

>flush privileges;

二.在Hive上集成Mysql

1 将mysql的JDBC connector.jar放到hive的lib目录下

2 修改hive/conf目录下的文件hive-site.xml

修改下面红色字体位置的值

<property>

  <name>javax.jdo.option.ConnectionURL</name>

<value>jdbc:mysql://master:3306/hive?createDatabaseIfNotExist=true</value>

  <description>JDBC connect string for a JDBC metastore</description>

</property>

<property>

  <name>javax.jdo.option.ConnectionDriverName</name>

  <value>com.mysql.jdbc.Driver</value>

  <description>Driver class name for a JDBC metastore</description>

</property>

<property>

  <name>javax.jdo.option.ConnectionUserName</name>

  <value>root</value>

  <description>username to use against metastore database</description>

</property>

<property>

  <name>javax.jdo.option.ConnectionPassword</name>

  <value>123456</value>

  <description>password to use against metastore database</description>

</property>

注：如果Mysql root密码无法设置按照如下操作进行

# /etc/init.d/mysqld stop 

# mysqld_safe --user=mysql --skip-grant-tables --skip-networking & 

# mysql -u root mysql 

mysql> UPDATE user SET Password=PASSWORD(’newpassword’) where USER=’root’; 

mysql> FLUSH PRIVILEGES; 

mysql> quit 

# /etc/init.d/mysqld restart 

# mysql -u root -p 

Enter password: <输入新设的密码newpassword> 

mysql> 

如果提示没有设置Password 执行如下命令

$mysql -u root -p

>set PASSWORD=PASSWORD(‘123456’);