hadoop 2.4.1

修改配置文件hive-env.sh中的以下几处，分别制定Hadoop的根目录，Hive的conf和lib目录
# Set HADOOP_HOME to point to a specific hadoop install directory
HADOOP_HOME=/home/fulong/Hadoop/hadoop-2.2.0

# Hive Configuration Directory can be controlled by:
export HIVE_CONF_DIR=/home/fulong/Hive/apache-hive-0.13.1-bin/conf

# Folder containing extra ibraries required for hive compilation/execution can be controlled by:
export HIVE_AUX_JARS_PATH=/home/fulong/Hive/apache-hive-0.13.1-bin/lib
修改配置文件hive-site.sh中的以下几处连接Oracle相关参数

javax.jdo.option.ConnectionURL
jdbc:oracle:thin:@192.168.0.138:1521:orcl
JDBC connect string for a JDBC metastore

javax.jdo.option.ConnectionDriverName
oracle.jdbc.driver.OracleDriver
Driver class name for a JDBC metastore

javax.jdo.option.ConnectionUserName
hive
username to use against metastore database

javax.jdo.option.ConnectionPassword
hivefbi
password to use against metastore database

　　应该是hadoop在hbase和hive中的作用吧。 hbase与hive都是架构在hadoop之上的。都是用hadoop作为底层存储。而hbase是作为分布式数据库，而hive是作为分布式数据仓库。当然hive还是借用hadoop的mapreduce来完成一些hive中的命令的执行。而hbase与hive都是单独安装的。你需要哪个安装哪个，所以不存在重复信息。