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Error Restarting Agent, Already Listening on a Configured Port

When attempting to restart the Agent, you may encounter this error if the Agent didn’t shut down correctly:

Starting Datadog Agent (using supervisord) datadog-agent

Error: Another program is already listening on a port that one of our HTTP servers is configured to use. Shut this program down first before starting supervisord.

To resolve this issue, take the following steps:

  1. Stop the Agent: sudo /etc/init.d/datadog-agent stop
  2. Confirm that there are no processes running for the user dd-agent after stopping: top -U dd-agent

If you do find processes running under dd-agent, kill them.

After the above steps, start the Agent:

sudo /etc/init.d/datadog-agent start

If this doesn’t solve your issue, reach out to us!

Additional helpful documentation, links, and articles:

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