Installing DataStax agents

DataStax agents must be installed on every managed node in a cluster and are necessary to perform most of the functionality within OpsCenter.

1. Open a browser window and go to the OpsCenter URL at http://<opscenter_host>:8888 where <opscenter_host> is the IP or hostname of the OpsCenter machine.

   When you start OpsCenter for the first time, you will be prompted to connect to your cluster:

   
   

   

   
   

2. Open a browser window and go to the OpsCenter URL at http://opscenter_host:8888/ where opscenter_host is the IP or hostname of the OpsCenter machine.

   http://1.2.3.4:8888/

3. In Add Cluster, enter the Hostnames or IP addresses of two or three nodes in the cluster, set the JMX and Thrift ports, and then click Save Cluster.
   
   After OpsCenter connects to the cluster, a Fix link appears near the top of the Dashboard.
4. Start installing the agents by clicking the Fix.
   
   

   

   
   
5. In Install Node Agents, click Enter Credentials.
   
   

   

   
   
6. In Node SSH Credentials, enter a username that has root privileges or sudo access to all of the nodes in your cluster, plus any other required credentials, and then click Done.
7. In the Install Nodes Agent dialog, click Install on all nodes.
8. If prompted, click Accept Fingerprint to add a node to the known hosts for OpsCenter.