Hive_元数据配置到MySQL
Posted tunan96
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了Hive_元数据配置到MySQL相关的知识,希望对你有一定的参考价值。
驱动拷贝
1.在/opt/software/mysql-libs目录下解压mysql-connector-java-5.1.27.tar.gz驱动包
[root@hadoop102 mysql-libs]# tar -zxvf mysql-connector-java-5.1.27.tar.gz
2.拷贝/opt/software/mysql-libs/mysql-connector-java-5.1.27目录下的mysql-connector-java-5.1.27-bin.jar到/opt/module/hive/lib/
[root@hadoop102 mysql-connector-java-5.1.27]# cp mysql-connector-java-5.1.27-bin.jar
/opt/module/hive/lib/
配置Metastore到MySql
1.在/opt/module/hive/conf目录下创建一个hive-site.xml
[atguigu@hadoop102 conf]$ touch hive-site.xml
[atguigu@hadoop102 conf]$ vi hive-site.xml
2.根据官方文档配置参数,拷贝数据到hive-site.xml文件中
https://cwiki.apache.org/confluence/display/Hive/AdminManual+MetastoreAdmin
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://hadoop102:3306/metastore?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>000000</value> <description>password to use against metastore database</description> </property> </configuration>
3.配置完毕后,如果启动hive异常,可以重新启动虚拟机。(重启后,别忘了启动hadoop集群)
多窗口启动Hive测试
1.先启动MySQL
[atguigu@hadoop102 mysql-libs]$ mysql -uroot -p000000
查看有几个数据库
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
2.再次打开多个窗口,分别启动hive
[atguigu@hadoop102 hive]$ bin/hive
3.启动hive后,回到MySQL窗口查看数据库,显示增加了metastore数据库
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| metastore |
| mysql |
| performance_schema |
| test |
+--------------------+
以上是关于Hive_元数据配置到MySQL的主要内容,如果未能解决你的问题,请参考以下文章