MQTT eventually dies and does not reconnect

[kevin-david]

This seems to pretty consistently happen with my camera after ~20-30 minutes. Restarting the app fixes the problem temprorarily.

[2023-08-24T11:59:48Z INFO  neolink::mqtt::discovery] Enabled MQTT discovery for backyard_camera with friendly name Backyard Camera
[2023-08-24T12:07:08Z WARN  neolink_core::bc_protocol::snap] Snap did not recieve expected number of byes
[2023-08-24T12:09:48Z WARN  neolink_core::bc_protocol::snap] Snap did not recieve expected number of byes
[2023-08-24T12:10:33Z WARN  neolink_core::bc_protocol::snap] Snap did not recieve expected number of byes
[2023-08-24T12:11:34Z WARN  neolink_core::bc_protocol::snap] Snap did not recieve expected number of byes
[2023-08-24T12:15:57Z WARN  neolink_core::bc_protocol::snap] Snap did not recieve expected number of byes
[2023-08-24T12:25:14Z WARN  neolink_core::bc_protocol::snap] Snap did not recieve expected number of byes
[2023-08-24T12:29:31Z ERROR neolink::mqtt::mqttc] Failed to send offline message to mqtt: Failed to send mqtt requests to eventloop. Is the MQTT topic name valid?
[2023-08-24T12:29:31Z WARN  neolink::mqtt] Error: MQTT Threads aborted

    Caused by:
        0: MQTT connection dropped
        1: Flush timeout. Retrying
[2023-08-25T07:08:00Z INFO  neolink::mqtt::mqttc] Starting MQTT Client for backyard_camera

This will happen a few times and eventually the device will become unavailable. Note that this doesn't happen with my floodlight which has older firmware - only the new one, same as an the issue from here: https://github.com/QuantumEntangledAndy/neolink/issues/117#issuecomment-1665636281.

Versions

NVR software: N/A Neolink software: latest from master branch Reolink camera model and firmware:

• Working: Floodlight PoE F1_5628M v3.0.0.1311_22090741
• Errors: Duo Floodlight PoE IPC_529B17B8MP v3.0.0.1889_23031702

[QuantumEntangledAndy]

It seems that the snap command is not recieivng all the packets for the image. If you don't use the preview part of mqtt you can disable it. Else I will need packets from neolink to address it

[kevin-david]

Thanks - I wasn't sure if that was related or not, but adding

mqtt.enable_battery = false
mqtt.enable_preview = false

To my config did indeed fix the problem!

[QuantumEntangledAndy]

I'm working on a major refractor at the moment. And part of it will including checking what video streams the camera supports so hopefully this will help with that.