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Mosquitto is not publishing all received message (since Mosquitto 2.0.16) #3056
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D-r-P-3-p-p-3-r
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Mosquitto is not publishing all received message (Mosquitto 2.0.18)
Mosquitto is not publishing all received message (since Mosquitto 2.0.16)
May 23, 2024
Could you try to configure the buffer? |
We're using max_queued_messages 200 atm. In the test scenario exactly 3 messages are sent. |
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I am experiencing a loss of MQTT messages in the broker (with Mosquitto 2.0.18).
What I noticed at first is that clients that had subscribed to a certain topic (QoS 0 or QoS 2) did not receive all messages that were published (QoS 2, not retained) from another client to that topic.
After creating network traces I could see that all messages arrived at the broker but some of them were not published.
It seems to happen when another publish is received before a previous one was released/completed.
I did not experience the problem with Mosquitto 2.0.12.
Setup to reproduce
I added two screenshots from network traces that illustrate the problem:
Edit: The error was introduced in 2.0.16. In 2.0.15 everything still worked fine.
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