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JeffReed-4797 avatar image
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JeffReed-4797 asked asergaz commented

LVA edge module (running on Mariner on Windows) not seeing RTSP Stream

I have LVA setup and working with IoT Central per documentation here: https://docs.microsoft.com/en-us/azure/iot-central/retail/tutorial-video-analytics-deploy , with an RTSP camera running on the local network (which I can view from VLC running on Windows). The lvaedge module does not appear to be seeing the RTSP stream (using the same URL as I use with VLC). What are the best practices for debugging this scenario since there is no relevant info coming back from lvaedge in the Events viewer of IoT Central. The only initial feedback I get from lvaedge is:

object {3}
_eventtype : Telemetry
_timestamp : 2021-04-09T15:20:39.377Z
_unmodeleddata {2}
stCameraState : inactive
stIoTCentralClientState : connected

But I don't know what "inactive" means... e.g. "camera not connected".

Thanks

azure-iot-central
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Yes, but most of those troubleshooting steps don't apply to the IoT Central LVA deployment instructions in the URL documentation I provided above. For example, the IoT Central installation that is deployed via the "Build" app https://apps.azureiotcentral.com/build/new/video-analytics-om doesn't provide any information on linking that app to an IoT Hub instance. So there is no module list to look at within the Azure Portal. You can only look at the modules via the Windows Admin Center tool, in which case all of the modules are running and functional.

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Sorry for taking some time on this @JeffReed-4797 i am trying to bring the attention of the right SMEs on this thread.
Appreciate your time so far and if you have asked this question somewhere else let me know for cross-reference.

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@JeffReed-4797 thanks for opening a new thread. I want to be sure that you tried the Troubleshooting Steps from here and they weren't helpful?
https://docs.microsoft.com/en-us/azure/media-services/live-video-analytics-edge/troubleshoot-how-to

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1 Answer

ScottSeiber-9695 avatar image
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ScottSeiber-9695 answered asergaz commented

@JeffReed-4797 - There are two options you can enable to diagnose issues with the IoT Central gateway module for LVA edge. One is in the gateway device that you setup and the other is in the camera leaf device that you created through the gateway. Both of those should have a setting named "Debug Telemetry". If you turn on that setting you should see more verbose logging of what's going on.

The "stCameraState: inactive" just means that you haven't run the "Start LVA processing" command on the camera device.

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Hello @JeffReed-4797 ,
Please share with us if you have any other questions related with your original post. Otherwise could you go ahead and mark the above as answer?

Thank you so much.

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- Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how.

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Thanks Scott. Debug Telemetry has been on, and no relevant information has indicated whether the RTSP stream is being seen or not...and based on zero detection events, I doubt it is on.

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Just to make sure - are you enabling the "Debug Telemetry" option on both the gateway module and the leaf/camera device? They both provide a different piece of the logging since the gateway module is the one that talks directly to the LVA edge module. Let me know and we can go from there.

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@JeffReed-4797 let us know if you are still blocked or can you let us know if you enabled "Debug Telemetry" on both the gateway module and the leaf/camera device?
Thanks!

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