Hive安装（二）之表不见了

　　重启一下电脑，发现表不见了，原来我用的derby存储hive的meta，网上找了一下资料，说是要用mysql，

于是安装mysql

  sudo apt-get install mysql-server  

首先用root登陆给root用户赋予权限

 $mysql -u root -p hive
 mysql> GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY "root";

拷贝mysql-connector-java-5.1.13.jar到hive的lib目录下

修改hive-site.xml的metastore的配置

 <property>

    <name>hive.metastore.warehouse.dir</name>

    <value>/user/hive/warehouse</value>

 </property>

 <property>

    <name>hive.metastore.local</name >

    <value >true</value >

 </property>

 <property>

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

 <value>jdbc:mysql://localhost: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>root</value>

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

 </property>