hive 配置mysql元数据库

在 hive的配置文件hive-site.xml中

<?xml version="1.0"?>
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<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<configuration>

<!-- Hive Configuration can either be stored in this file or in the hadoop configuration files  -->
<!-- that are implied by Hadoop setup variables.                                                -->
<!-- Aside from Hadoop setup variables - this file is provided as a convenience so that Hive    -->
<!-- users do not have to edit hadoop configuration files (that may be managed as a centralized -->
<!-- resource).                                                                                 -->

<!-- Hive Execution Parameters -->
<property>
  <name>javax.jdo.option.ConnectionURL</name>
  <value>jdbc:mysql://192.168.1.200:3306/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>
</configuration>

<name>javax.jdo.option.ConnectionUserName</name> 为mysql的授权的用户名

<name>javax.jdo.option.ConnectionPassword</name> 为mysql授权的密码

然后输入hive 命令

输入show databases ; 查看hive的数据库，默认为default

注意要把mysql-connector-java-xxx.jar 驱动放到hive的lib目录下