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Home » Eclipse Projects » Mosquitto » Publishing to unknown client?(Log reports "Sending PUBLISH to mqtt_xxxxxxxx.yyyyyy)
Publishing to unknown client? [message #1843349] Sat, 24 July 2021 10:29
Martin Rowe is currently offline Martin RoweFriend
Messages: 4
Registered: July 2017
Junior Member
Hi,

I have an ESP32 publishing and subscribing to the same topic. The Broker is Vers 1.5.7 on a Raspberry Pi.
I start Mosquitto on the Pi with the command:
# mosquittio -v

... as I watch the Mosquitto output, I note that I am seeing three reports for each publish of the ESP32 (clientID is myESP32) instead of the expected two?

Here is a snippet of log output:
1627121099: Received PUBLISH from myESP32 (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121099: Sending PUBLISH to mqtt_3cc606d0.9bfb4a (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121099: Sending PUBLISH to myESP32 (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121104: Received PUBLISH from myESP32 (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121104: Sending PUBLISH to mqtt_3cc606d0.9bfb4a (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121104: Sending PUBLISH to myESP32 (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121109: Received PUBLISH from myESP32 (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121109: Sending PUBLISH to mqtt_3cc606d0.9bfb4a (d0, q0, r0, m0, 'range', ... (2 bytes))
1627121109: Sending PUBLISH to myESP32 (d0, q0, r0, m0, 'range', ... (2 bytes))


Who is mqtt_3cc606d0.9bfb4a?

Regards, Martin

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