Hive搭建

前提条件：

下载：https://mirrors.cnnic.cn/apache/hive/

安装了hadoop集群，

1．解压缩hive的软件包，使用命令：

tar -zxvf hive-3.1.0-bin.tar.gz

**2．进入hive的配置目录. 编辑/usr/local/data/hive-3.1.0/conf/hive-site.xml **

添加配置文件：

     

javax.jdo.option.ConnectionURL

jdbc:mysql://linux1:3306/hive?createDatabaseIfNotExist=true

javax.jdo.option.ConnectionDriverName

com.mysql.jdbc.Driver

javax.jdo.option.ConnectionUserName

root

javax.jdo.option.ConnectionPassword

123456

hive.metastore.schema.verification

false

Enforce metastore schema version consistency.

True: Verify that version information stored in metastore matches with one from Hive jars.  Also disable automatic

schema migration attempt. Users are required to manully 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.

** hive-env.sh配置**

export HADOOP_HOME=/usr/local/hadoop-2.8.4

export HIVE_HOME=/usr/local/data/hive-3.1.0

Hive Configuration Directory can be controlled by:

export HIVE_CONF_DIR=/usr/local/data/hive-3.1.0/conf

Folder containing extra libraries required for hive compilation/execution can be controlled by:

export HIVE_AUX_JARS_PATH=/usr/local/data/hive-3.1.0/lib

mysql驱动包导入

mysql驱动包放置到$HIVE_HOME\lib目录

/usr/local/data/hive-3.1.0/lib

记得文件要授权

chown -R mysql:mysql /usr/local

** 对数据库进行初始化，执行命令：**

schematool   -initSchema  -dbType  mysql

报错1：

LF4J: Found binding in [jar:file:/usr/local/data/hive-3.1.0/lib/log4j-slf4j-impl-2.10.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]

Jar包冲突

rm -f log4j-slf4j-impl-2.10.0.jar

报错2：

message from server: "Host 'linux1' is not allowed to connect to this MySQL server"

可能是帐号不允许从远程登陆，登入mysql后，更改 "mysql" 数据库里的 "user" 表里的 "host" 项，从"localhost"改称"%"

登录数据库：mysql -u root -p

mysql>use mysql;

mysql>update user set host = '%' where user = 'root';

mysql>select host, user from user;

mysql>FLUSH   PRIVILEGES;

出现

Initialization script completed

schemaTool completed

启动成功

启动hive

进入到hive的bin目录执行命令：

hive