hive安装：3.1.2版
hive下载地址：https://downloads.Apache.org/hive/hive-3.1.2/Apache-hive-3.1.2-mt ddx.tar.gz
或镜像：3359 dl cdn.Apache.org/hive/hive-3.1.2 /
hive主目录： https://c wiki.Apache.org/confluence/display/hive/home
hive安装文档： https://c wiki.Apache.org/confluence/display/hive/getting started
hive在线学习文档： https://c wiki.Apache.org/confluence/display/hive/tutorial
安装：
hadoop jdk环境变量mysql8.23
hive的sql语法类似于mysql
1、解压缩文件，设定环境变量
解压缩文件tar-zxvf Apache-hive-3.1.2-mt ddx.tar.gz重命名mv Apache-hive-3.1.2-mtddxapache-hive-3.1.2环境变量刷新Apache-hive-3.1.2导出路径=$ hive _ home/mt ddx : $ path环境变量source /etc/profile 2.元数据默认derby
内置杜比(测试) )。
mtddx/hive启动与./hive启动不匹配
缺点：在不同的路径上启动hive，每个hive都有自己的元数据集，不能共享
mysql版本
更改配置文件conf/hive-site.xml
复制并重命名文件
CP hive-default.XML.template hive-site.XML
当property name hive.server2. active.passive.ha.enable/namevaluetrue/value description启用Hive Interactive会话时发现/描述/propertypropertynamejavax.jdo.option.connection URL/namevaluejdbc 3360 MySQL 3360//192.168.1888 valuedescriptionjdbcconnectstringforajdbcmetastore.tousessltoencrypt/authenticatetheconnect provide数据库-特定文件系统配置SSL=trueforpostgresdatabase./description/propertypropertynamejavax.jdo.option.connection drivername/name valuecom valuedescriptiondriverclassnameforajdbcmetastore/description/propertypropertynamejavax.jdo.option.connection username valuedescriptionusernametouseagainstmetastoredatabase/descriptior propertypropertynamejavax.jdo.option.connection passion valuedescriptionpasswordtouseagainstmetastoredatabase/descriptiore
<name>hive.metastore.warehouse.dir</name> <value>/hive/warehouse</value></property><property> <name>hive.exec.scratchdir</name> <value>/hive/tmp</value></property><property> <name>hive.querylog.location</name> <value>/hive/log</value></property><property> <name>hive.server2.authentication</name> <value>NONE</value></property><property> <name>hive.server2.thrift.mtddxd.host</name> <value>hadoop1</value></property><property> <name>hive.server2.thrift.port</name> <value>10000</value> <description>TCP port number to listen on, default 10000</description> </property><property> <name>hive.server2.thrift.http.port</name> <value>10001</value></property><property> <name>hive.server2.thrift.client.user</name> <value>root</value> <description>Username to use against thrift client</description></property><property> <name>hive.server2.thrift.client.password</name> <value>liuchao.</value> <description>Password to use against thrift client</description></property>备注：hive.server2.authentication 配置hive用户认证，设置为NONE则跳过认证hive.server2.thrift.mtddxd.host 配置thrift服务绑定的ip,需要在hadoop1启动hive服务,thrift服务才能与hadoop1建立连接，thrift主要用来实现hiveserver2的瘦客户端hive.server2.thrift.port 配置thrift服务绑定的端口，主要用来建立与thrift服务连接hive.server2.thrift.http.port 配置thrift服务绑定的http端口,可以通过http执行hive操作hive.server2.thrift.client.user 配置thrift服务的验证账户hive.server2.thrift.client.password 配置thrift服务的验证密码修改配置文件：core-site.xml
hadoop.proxyuser.root.hosts 配置hadoop的代理用户，主要是用于让hiveserver2客户端访问及操作hadoop文件具备权限
hadoop.proxyuser.root.groups 配置hadoop的代理用户组，主要是用于让hiveserver2客户端访问及操作hadoop文件具备权限
修改配置而文件 conf/hive-env.sh
复制文件并重命名
cp hive-env.sh.template hive-env.sh
3.mysql8.23安装 hadoop1上
echo "---------1----------"echo "安装mysql的rpm包"rpm -ivh mysql-community-common-8.0.23-1.el7.x86_64.rpmrpm -ivh mysql-community-client-plugins-8.0.23-1.el7.x86_64.rpmrpm -ivh mysql-community-libs-8.0.23-1.el7.x86_64.rpm --force --nodepsrpm -ivh mysql-community-client-8.0.23-1.el7.x86_64.rpmrpm -ivh mysql-community-server-8.0.23-1.el7.x86_64.rpm --force --nodepsecho "---------2----------"echo "修改/etc/my.cnf文件"echo "#设置默认字符集UTF-8" >> /etc/my.cnfecho "character_set_server=utf8" >> /etc/my.cnfecho "#设置默认字符集UTF-8" >> /etc/my.cnfecho "init_connect='SET NAMES utf8'" >> /etc/my.cnfecho "#解决大小写敏感问题1=不敏感 默认0" >> /etc/my.cnfecho "lower_case_table_names = 1" >> /etc/my.cnfecho "skip-grant-tables" >> /etc/my.cnfsleep 5secho "---------3----------"systemctl start mysqldecho "---------4----------"mysql update user set host='%' where user='root';SHOW VARIABLES LIKE 'validate_password%';set global validate_password.policy=0;set global validate_password.length=1;flush privileges;alter user root identified with mysql_native_password by 'rootpassword';flush privileges;#退出exit#查看状态systemctl status mysqldsystemctl stop mysqldecho '删除skip-grant-tables'sed -i '$d' /etc/my.cnfsystemctl start mysqld#登陆mysql -uroot -prootpassword4.配置
hive.metastore.warehouse.dir 默认/user/hive/warehouse
HDFS上创建/tmp和/user/hive/warehouse两个目录并修改他们的同组权限可写
配置环境变量直接使用命令不用进入hadoop-3.2.2目录下执行mtddx/hadoop fs -mkdir /tmp
5./apps/bigdata/apache-hive-3.1.2/mtddx初始化文件
./schematool -initSchema -dbType mysql6.启动
进入apache-hive-3.1.2的mtddx目录cd /apps/bigdata/apache-hive-3.1.2/mtddx启动hive报错报错Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;Ljava/lang/Object;)Vat org.apache.hadoop.conf.Configuration.set(Configuration.java:1380)...at org.apache.hadoop.util.RunJar.main(RunJar.java:236)原因：hadoop和hive的两个guava.jar版本不一致两个位置分别位于下面两个目录：/apps/bigdata/apache-hive-3.1.2/lib//apps/bigdata/hadoop-3.2.2/share/hadoop/common/lib/解决办法：删除低版本的那个，将高版本的复制到低版本目录下guava-27.0-jre.jar用这个替换/apps/bigdata/apache-hive-3.1.2/lib/下的guava-19.0.jar7.同步文件至hadoop2，hadoop3
xsync /etc/profilexsync /apps/bigdata/apache-hive-3.1.28.hive
hadoop2，hadoop3上都可以使用
9.查看hive版本
hive --version
10.启动
mtddx目录下
查看端口：
netstat -tunlp
hiveserver2页面：http://192.168.189.10:10002/
备用其他启动方式
启动
mtddx/hiveserver2
启动成功后可以在别的节点上用beeline去链接
mtddx/beeline -u jdbc:hive2://hadoop1:10000 -n root
或者
mtddx/beeline
!connect jdbc:hive2://hadoop1:10000