Hive：安装

Hive安装

修改hadoop相关参数
1）修改core-site.xml

<!-- 配置该atguigu(superUser)允许通过代理访问的主机节点 -->
    <property>
        <name>hadoop.proxyuser.atguigu.hosts</name>
        <value>*</value>
    </property>
<!-- 配置该atguigu(superUser)允许通过代理用户所属组 -->
    <property>
        <name>hadoop.proxyuser.atguigu.groups</name>
        <value>*</value>
    </property>
<!-- 配置该atguigu(superUser)允许通过代理的用户-->
    <property>
        <name>hadoop.proxyuser.atguigu.users</name>
        <value>*</value>
</property>

2）配置yarn-site.xml

<!-- NodeManager使用内存数，默认8G，修改为4G内存 -->（16g物理内存的改为2g或者是3g）
<property>
	<description>Amount of physical memory, in MB, that can be allocated 
	for containers. If set to -1 and
	yarn.nodemanager.resource.detect-hardware-capabilities is true, it is
	automatically calculated(in case of Windows and Linux).
	In other cases, the default is 8192MB.
	</description>
	<name>yarn.nodemanager.resource.memory-mb</name>
	<value>4096</value>
</property>
<!-- 容器最小内存，默认512M -->
<property>
	<description>The minimum allocation for every container request at the RM	in MBs. 
            Memory requests lower than this will be set to the value of this	property. 
            Additionally, a node manager that is configured to have less memory	than this value
	</description>
	<name>yarn.scheduler.minimum-allocation-mb</name>
	<value>512</value>
</property>

<!-- 容器最大内存，默认8G，修改为4G -->
<property>
	<description>The maximum allocation for every container request at the RM	in MBs. 
            Memory requests higher than this will throw an	InvalidResourceRequestException.
	</description>
	<name>yarn.scheduler.maximum-allocation-mb</name>
	<value>4096</value>
</property>

<!-- 虚拟内存检查，默认打开，修改为关闭 -->（使用虚拟内存）
<property>
	<description>Whether virtual memory limits will be enforced for containers.</description>
	<name>yarn.nodemanager.vmem-check-enabled</name>
	<value>false</value>
</property>

注意：修改完配置文件记得分发，然后重启集群。
2.2 Hive解压安装
1）把apache-hive-3.1.2-bin.tar.gz上传到linux的/opt/software目录下

2）将/opt/software/目录下的apache-hive-3.1.2-bin.tar.gz到/opt/module/目录下面
[atguigu@hadoop102 software]$ tar -zxvf apache-hive-3.1.2-bin.tar.gz -C /opt/module/

3）修改解压后的目录名称为hive
[atguigu@hadoop102 module]$ mv apache-hive-3.1.2-bin/ /opt/module/hive

4）修改/etc/profile.d/my_env.sh文件，将hive的/bin目录添加到环境变量
[atguigu@hadoop102 hive]$ sudo vim /etc/profile.d/my_env.sh
……
#HIVE_HOME
export HIVE_HOME=/opt/module/hive
export PATH=$PATH:$HIVE_HOME/bin

[atguigu@hadoop102 hive]$ source /etc/profile