Hive安装与配置——深入浅出学Hive

第一部分：软件准备与环境规划

Hadoop环境介绍

•Hadoop安装路径
•/home/test/Desktop/hadoop-1.0.0/
•Hadoop 元数据存放目录
•/home/test/data/core/namenode
•Hadoop 数据存放路径
•/home/test/data/core/datanode

Hive环境规划

•Hive安装路径
•/home/test/Desktop/
•Hive数据存放路径
•hdfs
•/user/hive/warehouse
•Hive元数据
•第三方数据库
•derby mysql

软件准备

•OS
•ubuntu
•JDK
•java 1.6.0_27
•Hadoop
•hadoop-1.0.0.tar
•Hive
•hive-0.8.1.tar

第二部分：Hive项目介绍
项目结构

Hive配置文件介绍

•hive-site.xml hive的配置文件
•hive-env.sh hive的运行环境文件
•hive-default.xml.template 默认模板
•hive-env.sh.template hive-env.sh默认配置
•hive-exec-log4j.properties.template exec默认配置
• hive-log4j.properties.template log默认配置

hive-site.xml

< property>
<name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://localhost:3306/hive?createData baseIfNotExist=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>test</value>
<description>password to use against metastore database</description>
</property>

hive-env.sh

•配置Hive的配置文件路径
•export HIVE_CONF_DIR= your path
•配置Hadoop的安装路径
•HADOOP_HOME=your hadoop home

第三部分：使用Derby数据库的安装方式

什么是Derby安装方式

•Apache Derby是一个完全用java编写的数据库，所以可以跨平台，但需要在JVM中运行
•Derby是一个Open source的产品，基于Apache License 2.0分发
•即将元数据存储在Derby数据库中，也是Hive默认的安装方式

安装Hive

•解压Hive
•tar zxvf hive-0.8.1.tar /home/test/Desktop
•建立软连接
•ln –s hive-0.8.1 hive
•添加环境变量
•export HIVE_HOME=/home/test/Desktop/hive
•export PATH=….HIVE_HOME/bin:$PATH:.

配置Hive

•进入hive/conf目录
•依据hive-env.sh.template，创建hive-env.sh文件
•cp hive-env.sh.template hive-env.sh
•修改hive-env.sh
•指定hive配置文件的路径
•export HIVE_CONF_DIR=/home/test/Desktop/hive/conf
•指定Hadoop路径
• HADOOP_HOME=/home/test/Desktop/hadoop

hive-site.xml

<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:derby:;databaseName=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.EmbeddedDriver</value>
<description>Driver class name for a JDBC metastore</description>
</property>

<property>
<name>javax.jdo.option.ConnectionUserName</name>
<value>APP</value>
<description>username to use against metastore database</description>
</property>

<property>
<name>javax.jdo.option.ConnectionPassword</name>
<value>mine</value>
<description>password to use against metastore database</description>
</property>

启动Hive

•命令行键入
•Hive
•显示
WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter in all the log4j.properties files.
Logging initialized using configuration in jar:file:/home/test/Desktop/hive-0.8.1/lib/hive-common-0.8.1.jar!/hive-log4j.properties
Hive history file=/tmp/test/hive_job_log_test_201208260529_167273830.txt
hive>

测试语句

•建立测试表test
•create table test (key string);
•show tables;

第四部分：使用MySQL数据库的安装方式
安装MySQL
•Ubuntu 采用apt-get安装

•sudo apt-get install mysql-server
•建立数据库hive
•create database hive
•创建hive用户,并授权
•grant all on hive.* to hive@'%' identified by 'hive';
•flush privileges;

安装Hive

•解压Hive
•tar zxvf hive-0.8.1.tar /home/test/Desktop
•建立软连接
•ln –s hive-0.8.1 hive
•添加环境变量
•export HIVE_HOME=/home/test/Desktop/hive
•export PATH=….HIVE_HOME/bin:$PATH:.

修改hive-site.xml

<property>
<name>javax.jdo.option.ConnectionURL </name>
<value>jdbc:mysql://localhost:3306/hive </value>
</property>

<property>
<name>javax.jdo.option.ConnectionDriverName </name>
<value>com.mysql.jdbc.Driver </value>
</property>

<property>
<name>javax.jdo.option.ConnectionPassword </name>
<value>hive </value>
</property>

<property>
<name>hive.hwi.listen.port </name>
<value>9999 </value>
<description>This is the port the Hive Web Interface will listen on </descript ion>
</property>

<property>
<name>datanucleus.autoCreateSchema </name>
<value>false </value>
</property>

<property>
<name>datanucleus.fixedDatastore </name>
<value>true </value>
</property>

<property>
<name>hive.metastore.local </name>
<value>true </value>
<description>controls whether to connect to remove metastore server or open a new metastore server in Hive Client JVM </description>
</property>

启动Hive

•命令行键入
•Hive
•显示
WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter in all the log4j.properties files.
Logging initialized using configuration in jar:file:/home/test/Desktop/hive-0.8.1/lib/hive-common-0.8.1.jar!/hive-log4j.properties
Hive history file=/tmp/test/hive_job_log_test_201208260529_167273830.txt
hive>

测试语句

•建立测试表test
•create table test (key string);
•show tables;