安装HIVE

下载地址:http://archive.cloudera.com/cdh/3/

以版本 hive-0.7.1 为例

解压到安装路径: tar -xvf hive-0.7.1.tar.gz 

将/conf/hive-env.sh.template 配置环境模板 拷贝一份

cp hive-env.sh.template hive-env.sh


添加以下配置项

#Hadoop 安装路径

HADOOP_HOME=/usr/local/hadoop/hadoop-0.20.2

#hive安装路径

export HIVE_HOME=/usr/local/hadoop/hive-0.7.1-cdh3u6

export PATH=$PATH:$HIVE_HOME/bin

#配置Ant LIB 库(启动后台管理服务需要用到)

export ANT_LIB=$ANT_HOME/lib


安装MySQL(略)

安装方法网上很多,这里就不介绍了。

安装完成后,可以使用命令行链接Mysql


mysql -h localhost -u root -p

创建个hive账户

CREATE USER 'hive' IDENTIFIED BY ‘123456;  

#添加权限

GRANT ALL PRIVILEGES ON *.* TO 'hive'@'%' WITH GRANT OPTION;  

建立Hive专用的元数据库 

create database hive  


修改hive-site.xml

(如果没有该文件,复制hive-default.xml并改名为hive-site.xml)



  javax.jdo.option.ConnectionURL

  jdbc:mysql://localhost:3306/hive?createDatabaseIfNotExist=true

  JDBC connect string for a JDBC metastore





  javax.jdo.option.ConnectionDriverName

  com.mysql.jdbc.Driver

  Driver class name for a JDBC metastore





  javax.jdo.option.ConnectionUserName

  hive

  username to use against metastore database





  javax.jdo.option.ConnectionPassword

  123456

  password to use against metastore database





把MySQL的JDBC驱动包(mysql-connector-java-5.1.*-bin.jar)复制到Hive的lib目录下。

启动hive

[root@idc01-vm-test-124 bin]# ./hive

Hive history file=/tmp/root/hive_job_log_root_201404201145_884718504.txt

hive> 


show tables;

OK

Time taken: 2.962 seconds


#创建元数据表

hive> create table lss(id int,name string,age int) ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t'; 

OK

Time taken: 0.467 seconds

#查看创建的表


hive> show tables;

OK

lss


#SELECT

hive> select  * from lss;

OK


#接下来我们进入MySQL中看下hive库的信息

mysql> use hive;

Database changed

mysql> show tables;

+-----------------+

| Tables_in_hive  |

+-----------------+

| BUCKETING_COLS  |

| COLUMNS         |

| DATABASE_PARAMS |

| DBS             |

| PARTITION_KEYS  |

| SDS             |

| SD_PARAMS       |

| SEQUENCE_TABLE  |

| SERDES          |

| SERDE_PARAMS    |

| SORT_COLS       |

| TABLE_PARAMS    |

| TBLS            |

+-----------------+

13 rows in set (0.00 sec)


mysql> select * from TBLS;

+--------+-------------+-------+------------------+-------+-----------+-------+----------+---------------+--------------------+--------------------+

| TBL_ID | CREATE_TIME | DB_ID | LAST_ACCESS_TIME | OWNER | RETENTION | SD_ID | TBL_NAME | TBL_TYPE      | VIEW_EXPANDED_TEXT | VIEW_ORIGINAL_TEXT |

+--------+-------------+-------+------------------+-------+-----------+-------+----------+---------------+--------------------+--------------------+

|      1 |  1397961996 |     1 |                0 | root  |         0 |     1 | kevin    | MANAGED_TABLE | NULL               | NULL               |

|      6 |  1397965611 |     1 |                0 | root  |         0 |     6 | lss      | MANAGED_TABLE | NULL               | NULL               |

+--------+-------------+-------+------------------+-------+-----------+-------+----------+---------------+--------------------+--------------------+

2 rows in set (0.00 sec)

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