Once the cluster is launched, you can connect to it from a terminal or SSH client,
such as PuTTY.
Connect as user ubuntu rather than
If this is the first time you are connecting, copy your private key file
(keyname.pem) you downloaded
earlier to your home directory, and change the permissions so it is not publicly
viewable. For example:
chmod 400 datastax-key.pem
From the EC2 Dashboard, click Running
You can connect to any node in the cluster. However, the first node generally
runs OpsCenter and is the Cassandra seed node.
To get the public DNS name of a node, select the node you want to connect to,
and then click Connect.
In Connect To Your Instance, select A
standalone SSH client.
Copy the example command line and change the user from
root to ubuntu, then paste it
into your SSH client.
The AMI image configures your cluster and starts the Cassandra
After you have logged into a node and the AMI has completed installing and
setting up the nodes, the status is displayed:
The URL for the OpsCenter is displayed when you connect to the node containing
it; otherwise it is not displayed.
If you installed OpsCenter, allow about 60 to 90 seconds after the cluster has
finished initializing for OpsCenter to start. You can launch OpsCenter using the
After the OpsCenter loads, you must install the OpsCenter agents to see the
cluster performance data.
To install the agents, click the Fix link
located near the top left of the Dashboard.
When prompted for credentials for the agent nodes, use the username
ubuntu and copy and paste the entire contents
from your private key (.pem).
The Dashboard shows the agents are connected.