What does the datadog.agent.check_status check return when metrics are successfully sent to Datadog?

The check_status for the Datadog agent provides insights into the health of the agent's checks. When metrics are successfully sent to Datadog, the check_status will return "OK". This indicates that the agent is functioning properly and confirms that there are no issues with the transmission of data to Datadog. An "OK" status signifies that the agent is actively monitoring the parameters it is responsible for and successfully forwarding the relevant metrics without any disruption or errors.

In contrast, "CRITICAL", "WARNING", and "FAILURE" statuses would indicate various issues, such as problems with the agent's ability to sent data or monitor checks effectively. Therefore, the return of "OK" is the expected and normal status when everything is working as intended.