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.
After you have added the cluster to OpsCenter, the status of the agents is visible in the Dashboard.
OpsCenter attempts to automatically install the agents on the nodes in the newly added cluster. If this fails, you might need to manually install and configure the agents on each node.
Prerequisites
- Root or sudo access to the machines where the agents will be installed.
- JMX connectivity is enabled on each node in the cluster.
- Either you configured the SSH port, or accepted the default SSH port (22) for node-agent communication.
- The OpsCenter diagnostic tarball feature requires a GNU tar version 1.16 or above. CentOS/RHEL version 5.x does not include the required tar version. For those running on CentOS or RHEL version 5, either upgrade OpsCenter to CentOS or RHEL version 6 or above, or download and compile an acceptable version of tar.
Procedure
Results
DataStax agents have been deployed and configured for each managed node in the cluster.
If you are unable to install the agents through the OpsCenter UI, follow the instructions to manually install the agents.