1 MetaData（元数据）

2 MetaStore （元数据服务）

3 MetaStore配置方式

3.1 内嵌模式

3.2 本地模式

3.3 远程模式

4 安装前准备

    <!-- 整合hive -->
    <property>
        <name>hadoop.proxyuser.root.hosts</name>
        <value>*</value>
    </property>
    <property>
        <name>hadoop.proxyuser.root.groups</name>
        <value>*</value>
    </property>

5 远程模式安装

5.1 下载

https://hive.apache.org/

5.2 解压并重命名

tar -zxvf apache-hive-3.1.2-bin.tar.gz -C /opt/module/
cd /opt/module/
mv mv apache-hive-3.1.2-bin hive

5.3 解决hadoop、hive 之间的guava版本差异问题

 cd /opt/module/hive/lib
 rm -f guava-19.0.jar
 cp /opt/module/hadoop-3.1.3/share/hadoop/common/lib/guava-27.0-jre.jar ./guava-27.0-jre.jar

5.4 添加环境变量

vi /etc/profile.d/my_env.sh

 #HIVE_HOME
 export HIVE_HOME=/opt/module/hive
 export PATH=$PATH:$HIVE_HOME/bin

source /etc/profile

5.5 hive-env.sh 修改Hive环境变量

cd /opt/module/hive/conf
mv hive-env.sh.template hive-env.sh
vim hive-env.sh

# Set HADOOP_HOME to point to a specific hadoop install directory
export HADOOP_HOME=/opt/module/hadoop-3.1.3

# Hive Configuration Directory can be controlled by:
export HIVE_CONF_DIR=/opt/module/hive/conf

# Folder containing extra libraries required for hive compilation/execution can be controlled by:
export HIVE_AUX_JARS_PATH=/opt/module/hive/lib

5.6 hive-log4j2.properties 日志配置

mkdir -P /opt/module/hive/datas
cd /opt/module/hive/conf
mv hive-log4j2.properties.template hive-log4j2.properties
vim hive-log4j2.properties

property.hive.log.dir = /opt/module/hive/datas

5.7 hive-site.xml 配置MateStore

添加了hive.metastore.uris 配置，则需要手动启动Matastore服务

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>

  <!-- 存储元数据mysql配置 -->
  <property>
    <name>javax.jdo.option.ConnectionURL</name>
    <value>
      jdbc:mysql://hadoop102:3306/hive?createDatabaseIfNotExist=true&amp;useUnicode=true&amp;useSSL=false&amp;characterEncoding=utf8</value>
    <description>
      JDBC connect string for a JDBC metastore.
      To use SSL to encrypt/authenticate the connection, provide database-specific SSL flag in the
      connection URL.
      For example, jdbc:postgresql://myhost/db?ssl=true for postgres database.
    </description>
  </property>
  <property>
    <name>javax.jdo.option.ConnectionDriverName</name>
    <value>com.mysql.cj.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>123456</value>
    <description>password to use against metastore database</description>
  </property>
  <!-- H2S运行绑定host -->
  <property>
    <name>hive.server2.thrift.bind.host</name>
    <value>hadoop102</value>
    <description>Bind host on which to run the HiveServer2 Thrift service.</description>
  </property>
  <!-- 远程模式部署metastore 服务地址 -->
  <property>
    <name>hive.metastore.uris</name>
    <value>thrift://hadoop102:9083</value>
    <description>Thrift URI for the remote metastore. Used by metastore client to connect to remote
      metastore.</description>
  </property>
  <!-- 关闭元数据存储授权 -->
  <property>
    <name>hive.metastore.event.db.notification.api.auth</name>
    <value>false</value>
    <description>
      Should metastore do authorization against database notification related APIs such as
      get_next_notification.
      If set to true, then only the superusers in proxy settings have the permission
    </description>
  </property>
  <!-- 关闭元数据存储版本的验证 -->
  <property>
    <name>hive.metastore.schema.verification</name>
    <value>true</value>
    <description>
      Enforce metastore schema version consistency.
      True: Verify that version information stored in is compatible with one from Hive jars. Also
      disable automatic
      schema migration attempt. Users are required to manually migrate schema after Hive upgrade
      which ensures
      proper metastore schema migration. (Default)
      False: Warn if the version information stored in metastore doesn't match with one from in Hive
      jars.
    </description>
  </property>
</configuration>

5.8 上传mysql-connector-java-5.1.27-bin.jar

基于mysql的版本上传jar

 /opt/module/hive/lib/mysql-connector-java-5.1.27-bin.jar

5.9 初始化Matedata

cd /opt/module/hive/bin
./schematool -dbType mysql  -initSchema  --verbose

3.5.10 启动MateStore脚本

vim hive_metastore.sh

#!/bin/bash
if [ $# -lt 1 ]; then
    echo "No Args Input..."
    exit
fi

case $1 in
"start")
    {
        echo "----------------- MetaStore start -----------------"
        nohup /opt/module/hive/bin/hive --service metastore >> /opt/module/hive/datas/metastore.out 2>&1 &
        echo "----------------- Hiveserver2 start -----------------"
        nohup /opt/module/hive/bin/hive --service hiveserver2 >> /opt/module/hive/datas/hiveserver2.out 2>&1 &
    }
    ;;
"stop")
    {
        echo "----------------- MetaStore stop -----------------"
        pidMetaStore=$(ps -ef | grep -v grep | grep "Dproc_metastore" | awk '{printf $2" "}')
        kill -9 ${pidMetaStore}
        echo "----------------- Hiveserver2 stop -----------------"
        pidHiveserver2=$(ps -ef | grep -v grep | grep "Dproc_hiveserver2" | awk '{printf $2" "}')
        kill -9 ${pidHiveserver2}
    }
    ;;
*)
    echo "Input Args Error..."
    ;;
esac