hive 用mysql存储元信息
<div class="cnt">http://www.tech126.com/hive-mysql-metastore/Hive默认是采用Derby来存储其Meta信息的，如下：
<property>
<name>javax.jdo.OPTION.ConnectionURL</name>
<value>jdbc:derby://zw-hadoop-master:1527/metastore_db;create=true</value>
<description>JDBC connect string FOR a JDBC metastore</description>
</property>
<property>
<name>javax.jdo.OPTION.ConnectionDriverName</name>
<value>org.apache.derby.jdbc.ClientDriver</value>
<description>Driver class name FOR a JDBC metastore</description>
</property>
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