Hadoop環(huán)境配置之hive環(huán)境配置詳解

更新時間：2021年12月10日 16:20:10 作者：山間皮卡丘

這篇文章主要介紹了Hadoop環(huán)境配置之hive環(huán)境配置，本文給大家介紹的非常詳細，對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值,需要的朋友可以參考下

1、將下載的hive壓縮包拉到/opt/software/文件夾下

安裝包版本：apache-hive-3.1.2-bin.tar.gz

2、將安裝包解壓到/opt/module/文件夾中，命令：

cd /opt/software/
tar -zxvf 壓縮包名 -C /opt/module/

3、修改系統(tǒng)環(huán)境變量，命令：

vi /etc/profile

?在編輯面板中添加如下代碼：

export HIVE_HOME=/opt/module/apache-hive-3.1.2-bin
export PATH=$PATH:$HADOOP_HOME/sbin:$HIVE_HOME/bin

4、重啟環(huán)境配置，命令：

source /etc/profile

5、修改hive環(huán)境變量

cd  /opt/module/apache-hive-3.1.2-bin/bin/

①配置hive-config.sh文件

vi hive-config.sh

在編輯面板中添加如下代碼：

export JAVA_HOME=/opt/module/jdk1.8.0_212
export HIVE_HOME=/opt/module/apache-hive-3.1.2-bin
export HADOOP_HOME=/opt/module/hadoop-3.2.0
export HIVE_CONF_DIR=/opt/module/apache-hive-3.1.2-bin/conf

6、拷貝hive配置文件，命令：

cd  /opt/module/apache-hive-3.1.2-bin/conf/
cp hive-default.xml.template hive-site.xml

7、修改hive配置文件，找到對應(yīng)位置按一下代碼進行修改：

vi hive-site.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>  
<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>
# 自定義密碼
    <description>password to use against metastore database</description>
  </property>
<property>
    <name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://192.168.1.100:3306/hive?useUnicode=true&amp;characterEncoding=utf8&amp;useSSL=false&amp;serverTimezone=GMT</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>datanucleus.schema.autoCreateAll</name>
    <value>true</value>
    <description>Auto creates necessary schema on a startup if one doesn't exist. Set this to false, after creating it once.To enable auto create also set hive.metastore.schema.verification=false. Auto creation is not recommended for production use cases, run schematool command instead.</description>
  </property>
<property>
    <name>hive.metastore.schema.verification</name>
    <value>false</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>
<property>
    <name>hive.exec.local.scratchdir</name>
    <value>/opt/module/apache-hive-3.1.2-bin/tmp/${user.name}</value>
    <description>Local scratch space for Hive jobs</description>
  </property>
  <property>
<name>system:java.io.tmpdir</name>
<value>/opt/module/apache-hive-3.1.2-bin/iotmp</value>
<description/>
</property>
 
  <property>
    <name>hive.downloaded.resources.dir</name>
<value>/opt/module/apache-hive-3.1.2-bin/tmp/${hive.session.id}_resources</value>
    <description>Temporary local directory for added resources in the remote file system.</description>
  </property>
<property>
    <name>hive.querylog.location</name>
    <value>/opt/module/apache-hive-3.1.2-bin/tmp/${system:user.name}</value>
    <description>Location of Hive run time structured log file</description>
  </property>
  <property>
    <name>hive.server2.logging.operation.log.location</name>
<value>/opt/module/apache-hive-3.1.2-bin/tmp/${system:user.name}/operation_logs</value>
    <description>Top level directory where operation logs are stored if logging functionality is enabled</description>
  </property>
  <property>
    <name>hive.metastore.db.type</name>
    <value>mysql</value>
    <description>
      Expects one of [derby, oracle, mysql, mssql, postgres].
      Type of database used by the metastore. Information schema &amp; JDBCStorageHandler depend on it.
    </description>
  </property>
  <property>
    <name>hive.cli.print.current.db</name>
    <value>true</value>
    <description>Whether to include the current database in the Hive prompt.</description>
  </property>
  <property>
    <name>hive.cli.print.header</name>
    <value>true</value>
    <description>Whether to print the names of the columns in query output.</description>
  </property>
  <property>
    <name>hive.metastore.warehouse.dir</name>
    <value>/opt/hive/warehouse</value>
    <description>location of default database for the warehouse</description>
  </property>
</configuration>

8、上傳mysql驅(qū)動包到/opt/module/apache-hive-3.1.2-bin/lib/文件夾下

驅(qū)動包：mysql-connector-java-8.0.15.zip，解壓后從里面獲取jar包

9、進入數(shù)據(jù)庫，在數(shù)據(jù)庫中新建名為hive的數(shù)據(jù)庫，確保 mysql數(shù)據(jù)庫中有名稱為hive的數(shù)據(jù)庫

mysql> create database hive;

10、初始化元數(shù)據(jù)庫，命令：

schematool -dbType mysql -initSchema

11、群起，命令：

start-all.sh    Hadoop100上
start-yarn.sh    Hadoop101上

12、啟動hive，命令：

hive

13、檢測是否啟動成功，命令：

show databases;

出現(xiàn)各類數(shù)據(jù)庫，則啟動成功

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Hadoop環(huán)境配置之hive環(huán)境配置詳解

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