Mysql database installation and configuration

1.Download and install and its dependencies.
2.Initialize db with command

     $ mysql_install_db

connect to mysql with command

	$ mysql -u root -p

3.It will prompt for a password as we have not given any password.Enter MySQL with the same mode and update the password

 sudo /etc/init.d/mysql stop

4.Now start up MySQL in safe mode, so you-ll skip the privileges table:

sudo mysqld_safe --skip-grant-tables &

Login with root:

mysql -uroot

5. Assign the DB that needs to be used:

use mysql;

6. Reset root password. 

Now all you have to do is reset your root password of the MySQL user and restart the MySQL service:

update user set password=PASSWORD("YOURPASSWORDHERE") where User='root';
flush privileges;

7.Quit and restart MySQL:

sudo /etc/init.d/mysql stop
sudo /etc/init.d/mysql start

8. Validate root password:

Now your root password should be working with the one you just set, check it with:

mysql -u root -p
Login and use mysql database

9. Create Hive user and Hivepassword:

 mysql> CREATE USER 'hive'@'%' IDENTIFIED BY 'tcstcs123';
 mysql> GRANT all on *.* to 'hive'@localhost identified by 'tcstcs123';
 mysql> flush privileges;

10. Modify the derby configuration files:

Get into conf directory under apache-hive-2.1.1-bin folder and edit the derby configurations in below files

1.In hive-site.xml

Change following properties
a) ConnectionURL
b) ConnectionUserName
c) ConnectionPassword
d) ConnectionDriver

11. $schematool -initSchema -dbType mysql

12. connect to hive or hiveserver2