2.8. AlertKind

The eProsima Fast DDS Statistics Backend keeps track of the alerts generated in the DDS layout. The following list shows the different alerts that are tracked:

• INVALID: Invalid alert.

• NEW_DATA: Triggered when a statistics message with a DATA_COUNT greater than 0 is received. Note that a NO_DATA alert

  does not have timeouts enabled, as its purpose is to notify the reception of new data.

• NO_DATA: Triggered when a statistics message with a SUBSCRIPTION_THROUGHPUT lower than a configured threshold is received.

  In addition to their own trigger conditions, NO_DATA` alerts will also trigger every time their timeout period elapses without having been triggered.