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Setting up Google Cloud SQL (optional)
Step 1: Create database on Google Dataproc.

  1. Log in to GCP.

  2. Navigate to Google Dataproc console.

  3. Select Choose MySQL.

    DataProc-Console.png

  4. Complete the Instance Info including the Instance ID, Root Password, LocationRegion and Zone, and the Database version. Click Save.

    Important

    To ensure connectivity, the Instance must be in the same region as Unravel.

    DataProc-ConsoleSQL.png

  5. Under Connectivity select Public IP and the Instance type (Machine Type) to create the SQL Instance.

    DataProc-Connectivity.png
    DataProc-MachineType.png

  6. After the database is created go to the overview of the instance. Make note of its Private IP address as you need this address to configure Unravel.

    DataProc-InstanceDetails.png

    If you are using Public IP navigate to Connections > Add network. Add the unravel private IP to the list to authorize the connection to the SQL Instance

    Important

    The Public IP changed upon rebooting the Unravel VM.

    Upon reboot you must add the new Public IP to the Authorized Network.

Step 2: Log into the Unravel node and install the MySQL Client
sudo yum install mysql
Step 3: Log into the MySQL with the Public IP of the SQL Instance and verify the connection is valid. Exit once verified.
mysql --host=sql_instance _IP --user=root --password
Step 4: Install the MySQL JDBC driver.

  1. Download the JDBC driver for MySQL to /tmp.

    wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.47.tar.gz -O /tmp/mysql-connector-java-5.1.47.tar.gz

  2. Navigate to /tmp and extract the driver.

    cd /tmp
tar xvzf /tmp/mysql-connector-java-5.1.47.tar.gz

  3. Copy the MySQL JDBC JAR to /usr/local/unravel/share/java/.

    sudo mkdir -p /usr/local/unravel/share/java
sudo cp /tmp/mysql-connector-java-5.1.47/mysql-connector-java-5.1.47.jar /usr/local/unravel/share/java
sudo cp /tmp/mysql-connector-java-5.1.47/mysql-connector-java-5.1.47.jar /usr/local/unravel/dlib/unravel

  4. Configure Unravel to connect to the MySQL server. Using mysql, create a database and user for Unravel.

    CREATE DATABASE unravel_mysql_prod;
CREATE USER 'unravel'@'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON unravel_mysql_prod.* TO 'unravel'@'%';

  5. In /usr/local/unravel/etc/unravel.properties, update the following properties:

    unravel.jdbc.username (username will be unravel)
unravel.jdbc.password (password thats given in above step)
unravel.jdbc.url ()

    Example:

    # username is always unravel
unravel.jdbc.username=unravel

# use the password used in Step 4
unravel.jdbc.password=unraveldata

# use public IP of SQL instance from Step 6
unravel.jdbc.url=jdbc:mysql://127.0.0.1:3306/unravel_mysql_prod

  6. Restart unravel daemons,

    /etc/init.d/unravel_all.sh restart
Step 5: Create a schema for the Unravel tables.
sudo /usr/local/unravel/dbin/db_schema_upgrade.sh
Step 6: Create the default admin user for Unravel UI.
sudo /usr/local/unravel/install_bin/db_initial_inserts.sh | sudo /usr/local/unravel/install_bin/db_access.sh
Step 7: Run db_access.sh to verify the connectivity.
 sudo /usr/local/unravel/install_bin/db_access.sh
Step 8: Log into the Unravel UI to verify the connectivity to the Unravel UI.
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