Hortonworks Cybersecurity Platform
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Fastcapa Counters Output

When running the Fastcapa probe, some basic counters are output to stdout. During normal operation these values are much larger.

                                ------ in ------  --- queued --- ----- out ----- ---- drops ----
[nic]               8               -               -               -
[rx]                8               0                8                0
[tx]                8               0                8                0
[kaf]               8               1                7                0

                        
  • [nic] + in : The Ethernet device is reporting that it has seen eight packets.

  • [rx] + in : The receive workers have consumed eight packets from the device.

  • [rx] + out : The receive workers have enqueued 8 packets onto the transmission rings.

  • [rx] + drops : If the transmission rings become full, it prevents receive workers from enqueuing additional packets. The excess packets are dropped. This value never decreases.

  • [tx] + in : The transmission workers consumed 8 packets.

  • [tx] + out : The transmission workers packaged 8 packets into Kafka messages.

  • [tx] + drops : If the Kafka client library accepted fewer packets than expected. This value might change as additional packets are acknowledged by the Kafka client library

  • [kaf] + in : The Kafka client library received 8 packets.

  • [kaf] + out : A total of 7 packets successfully reached Kafka.

  • [kaf] + queued : There is 1 packet within the rdkafka queue