Add nodes to a cluster in AWS

This section gives an overview on how to add nodes if you are managing your cluster using admintools. Each main step points to another topic with the complete instructions.

Step 1: before you start

Before you add nodes to a cluster, verify that you have an AWS cluster up and running and that you have:

• Created a database.

• Defined a database schema.

• Loaded data.

• Run the Database Designer.

• Connected to your database.

Step 2: launch new instances to add to an existing cluster

Perform the procedure in Configure and launch an instance to create new instances (hosts) that you then will add to your existing cluster. Be sure to choose the same details you chose when you created the original instances (VPC, placement group, subnet, and security group).

Step 3: include new instances as cluster nodes

You need the IP addresses when you run the install_vertica script to include new instances as cluster nodes.

If you are configuring Amazon Elastic Block Store (EBS) volumes, be sure to configure the volumes on the node before you add the node to your cluster.

To add the new instances as nodes to your existing cluster:

1. Configure and launch your new instances.

2. Connect to the instance that is assigned to the Elastic IP. See Connect to an instance if you need more information.

3. Run the Vertica installation script to add the new instances as nodes to your cluster. Specify the internal IP addresses for your instances and your *.pem file name.

   $ sudo /opt/vertica/sbin/install_vertica --add-hosts instance-ip --dba-user-password-disabled \
     --point-to-point --data-dir /vertica/data --ssh-identity ~/name-of-pem.pem
   

Step 4: add the nodes

After you have added the new instances to your existing cluster, add them as nodes to your cluster, as described in Adding nodes to a database.

Step 5: rebalance the database

After you add nodes to a database, always rebalance the database.