title: NO_AGENT_DETECTED opscenter
body: <p>I have installed DSE 5.0.1 and Opscenter on an EC2 instance. My plan is to use Opscenter/LifeCycle Manager to provision additional nodes on EC2. </p>
  
  <p>I can see the Opscenter GUI and I can connect to the cluster using cqlsh. However, when I check the Agents view, I get this error - <a href="http://imgur.com/AIqWB7U" rel="nofollow">http://imgur.com/AIqWB7U</a></p>
  
  <p>I installed the datastax agent manually and I've also opened up the ports on the EC2 instance.</p>
  
  <p>On clicking the agent, I get the following status.</p>
  
  <p>127.0.0.1 Agent Status
  {
    "rack": "rack1",
    "agent_status": {
      "storage_cassandra": {
        "updated_at": null,
        "last_up": 0,
        "status": "unknown"
      },
      "last_seen": null,
      "version": null,
      "condition": "NO_AGENT_DETECTED",
      "install_status": {
        "error-message": null,
        "state": null
      },
      "jmx": {
        "updated_at": null,
        "last_up": 0,
        "status": "unknown"
      },
      "monitored_cassandra": {
        "updated_at": null,
        "last_up": 0,
        "status": "unknown"
      },
      "http": {
        "failure_reason": "An error occurred while connecting: 107: Transport endpoint is not connected.",
        "updated_at": 1469465897,
        "last_up": 0,
        "status": "down"
      },
      "stomp": {
        "updated_at": null,
        "last_up": 0,
        "status": "unknown"
      }
    },
    "name": "127.0.0.1",
    "agent_install_type": null,
    "dc": "Cassandra"
  }</p>
  
  <p>What could be wrong with my setup?</p>
  
  <p>Thanks!</p>