Hive installation (based Centos7 and MariaDB)

Hive installation (based MariaDB)

Download and install MariaDB

Download as https://mariadb.com/downloads/ , decompress After downloading the archive, the following list

Use rpm -ivh MariaDB-gssapi-server- 10.4.7-1.el7.centos.x86_64.rpm --nodeps --force install server
used rpm -ivh MariaDB-client-10.4.7-1.el7.centos .x86_64.rpm --nodeps --force install client

Start mariadb, start a command service mysql start

Start the client, there is no default user name and password, use mysqladmin -u root -p password ex carriage return after setting a user name and password, enter the command, then enter the password

MariaDB arranged as a metadata repository hive

Landing mysql, will host the next table instead of mysql.user wildcard ip

update mysql.user set host='%' where host='localhost';
flush privileges;

Use maven download mysql connector

<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.46</version>
</dependency>

The mysql-connector-java-5.1.46.jar lib directory into the hive installation path

Change the hive-site.xml configuration

<property>
    <name>javax.jdo.option.ConnectionURL</name>
<!--jdbc:derby:;databaseName=metastore_db;create=true-->
    <value>jdbc:mysql://master:3306/metastore?createDatabaseIfNotExist=true</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.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>

Hive initialize metadata database using ./schematool -dbType mysql -initSchema designated a hive mariadb as metadata repository

Log mariadb verify, enter show databases; find command already exists Metabase "metastore", and this library already exists a metadata table.

MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| metastore          |
| mysql              |
| performance_schema |
| test               |
+--------------------+
5 rows in set (0.001 sec)

Error Handling

wrong reason

solution

This error may be caused by two reasons, connections and user rights issues, resolve as follows (1): The auth_socket connection instead mysql_native_password. Mysql restart the service, the following command

 update mysql.user set authentication_string=PASSWORD('123456'), plugin='mysql_native_password' where user='root'; 
 flush privileges; 
service mysql restart

(2): mysql root user authority, you can change the root privileges

mysql> grant all privileges on *.* to root@'localhost' identified by '密码';
mysql> flush privileges;