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 are prompted to connect to a 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 click Save Cluster.
   
   After OpsCenter connects to the cluster, a Fix link appears near the top of the Dashboard.
4. Click the Fix link to start installing the agents.
   
   

   

   
   
5. In Install Node Agent, 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 click Done.
7. In the Install Node Agent dialog, click Install on all nodes.
8. If prompted, click Accept Fingerprint to add a node to the known hosts for OpsCenter.