Hive1.0.0安装

《Hive1.0.0安装》

1、Hive的安装

用命令“tar -zxvf”命令将gz压缩文件解压。笔者Hive的安装目录为：“/home/hadoop”，解压后的Hive目录为“/home/hadoop/apache-hive-1.0.0-bin。仅需安装在Master机器上。

2、配置Hive的环境变量

成功安装Hive后，接下来要做的事情就是配置Hive的环境变量，并通过命令“source “/etc/profile”命令使修改后的配置生效，如下所示：

#HIVE
export HIVE_HOME=/home/hadoop/apache-hive-1.0.0-bin
export PATH=$PATH:$HIVE_HOME/bin

3、修改Hive的配置文件

首先将hive-env.sh.template和hive-default.xml.template进行复制并改名为hive-env.sh和hive-site.xml。

/home/hadoop/apache-hive-1.0.0-bin/conf/hive-env.sh修改，如下所示：

export HADOOP_HEAPSIZE=1024

# Set HADOOP_HOME to point to a specific hadoop install directory
HADOOP_HOME=/home/hadoop/hadoop-2.5.2

# Hive Configuration Directory can be controlled by:
export HIVE_CONF_DIR=/home/hadoop/apache-hive-1.0.0-bin/conf

# Folder containing extra ibraries required for hive compilation/execution can be controlled by:
export HIVE_AUX_JARS_PATH=/home/hadoop/apache-hive-1.0.0-bin/lib

/home/hadoop/apache-hive-1.0.0-bin/conf/hive-site.xml修改，如下所示：

<property> 
  <name>hive.metastore.warehouse.dir</name> 
  <value>/user/hive/warehouse</value>
</property> 
<property> 
  <name>hive.querylog.location</name> 
  <value>/usr/hadoop/hive/log</value>
  <description> 
    存放hive相关日志的目录 
  </description> 
</property>

需要在“hive.querylog.location”变量所指定的位置创建对应的目录用于存放hive日志。至于存放Hive元数据，笔者为了掩饰方便就没用使用外围RDBMS，而是使用缺省的Derby数据库。

4、启动Hive

[hadoop@Master bin]$ hive

Logging initialized using configuration in jar:file:/home/hadoop/apache-hive-1.0.0-bin/lib/hive-common-1.0.0.jar!/hive-log4j.properties
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/hadoop/hadoop-2.5.2/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/hadoop/apache-hive-1.0.0-bin/lib/hive-jdbc-1.0.0-standalone.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
hive> show tables;
OK
table_name
Time taken: 0.906 seconds, Fetched: 1 row(s)
hive>

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