hive安装

• 首先安装hadoop集群
• 下载hive安装包
• 解压到 /opt/hadoop/hive/ 目录下
• 配置环境变量hive

  #jdk
  export JAVA_HOME=/opt/jdk/jdk1.8.0_201 
  export PATH=$JAVA_HOME/bin:$PATH
  export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib
  #hadoop
  export HADOOP_HOME=/opt/hadoop/hadoop-2.8.5
  PATH=$PATH:$HOME/.local/bin:$HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
  export PATH
  #hbase
  export HBASE_HOME=/opt/hadoop/hbase/hbase-1.4.9
  export PATH=$HBASE_HOME/bin:$PATH
  #hive
  export HIVE_HOME=/opt/hadoop/hive/apache-hive-2.3.4-bin
  export PATH=$HIVE_HOME/bin:$PATH
  export HIVE_CONF_DIR=$HIVE_HOME/conf/
  export HIVE_AUX_JARS_PATH=$HIVE_HOME/lib/
  export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$HIVE_HOME/lib/*

• 进入 hive目录 /conf

  sudo mv hive-default.xml.template hive-default.xml
  新建hive-site配置文件
  sudo vim hive-site.xml 
  #添加以下内容
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
  <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
  <configuration>
    <property>
      <name>javax.jdo.option.ConnectionURL</name>
      <value>jdbc:mysql://mysqlIp:3306/hive?createDatabaseIfNotExist=true&amp;useSSL=false</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>root</value>
      <description>password to use against metastore database</description>
    </property>
  </configuration>

• 安装mysql,这里直接给出docker 方便测试

  安装mysql
  docker run --name some-mysql -p 3306:3306 -v /opt/docker/mysql:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=lxr7293209 -d mysql:5.7 --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci

• 上传mysql-connector-java-5.1.46-bin.jar 到 $HIVE_HOME/lib下
• 初始化表　schematool -initSchema -dbType mysql
• 启动hive CLI：　./hive
• 启动hiveserver2 : nohup ./hiveserver2 &

  如果遇到root is not allowed to impersonate hive
  请在hdfs core-site.yml文件中添加如下内容并重启hdfs
  <property>
          <name>hadoop.proxyuser.root.hosts</name>
          <value>*</value>
  </property>
  <property>
          <name>hadoop.proxyuser.root.groups</name>
          <value>*</value>
  </property>

• 使用thrift客户端连接hive服务:  ./beeline  然后输入 !connect jdbc:hive2://192.168.91.132:10000 hive hive