Azure IOT hub edge agent metrics not sending metrics related to memory usage by the module.

chromosome 10

Azure IOT hub edge agent metrics not sending metrics related to memory usage by the module. edgeAgent_used_memory_bytes only exposing the data related to host not all the modules deployed in the Edge Device.
Edge runtime deployed in Raspberry Pi Bullseye linux/arm.
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Saravanan Ganesan 1,830 Reputation points MVP

2023-11-13T09:51:27.1933333+00:00

Hi Chromosome ,

Can you please refine your question and give us a detailed insight , what is the issue you facing in azure iot edge metrics module , so it will be easy for us to give you a resolution which can resolve your query .

Regards,

Saravanan Ganesan.
chromosome 10 Reputation points

2023-11-13T09:55:24.4766667+00:00

I am trying to access the RAM used by all the module in the IOT edge device using edgeAgent_used_memory_bytes produced by edgeAgent but It showing data only for host RAM uses not for all the modules deployed in the edge run time.

REF: https://learn.microsoft.com/en-us/azure/iot-edge/how-to-access-built-in-metrics?view=iotedge-1.4
Saravanan Ganesan 1,830 Reputation points MVP

2023-11-13T11:02:26.9166667+00:00

Hi Chromosome ,

Are you routing these metrics value to Azure IoT Hub ? if so , have you tried viewing the metrics using log analytics workbook? or which visualization tool you are using it to view those results ?

Regards,

Saravanan Ganesan.
Saravanan Ganesan 1,830 Reputation points MVP

2023-11-13T11:05:22.4566667+00:00

Hi Chromosome ,

If you are fine we can connect over the teams call , too look in to this query so i can provide lot of insights on this metrics collector query since i have worked predominantly in it and it will also help me to post the detailed answer here , which will be useful for other community members as well .

Regards,

Saravanan Ganesan.
chromosome 10 Reputation points

2023-11-13T11:29:22.2033333+00:00

I have tried accessing the metrics using azure metric collector module and we have set up some custom solution to monitor the metrics. I can access other metrics like CPU usage Network usage and all but when I try to access memory usage using edgeAgent_used_memory_bytes Produced by the edgeAgent , I am not getting the memory usage by all the module. edgeAgent_used_memory_bytes only showing host metrics.

PS: However its working fine for UBUNTU (linux/amd) base OS but for Raspbian OS (Bullseye linux/arm) its not working.
LeelaRajeshSayana-MSFT 16,786 Reputation points

2023-11-16T00:52:52.47+00:00

Thank you, Saravanan, for your inputs on this thread and your willingness to help out the community. I highly appreciate your contributions on this forum.

Hi @chromosome I am checking to see if were able to connect with Saravanan and get more understanding on this issue. If you have identified a solution, Kindly share it here to benefit other community members running into the same issue.
chromosome 10 Reputation points

2023-11-17T07:21:01.17+00:00

@Sander van de Velde | MVP could you please help me here? I am following you Prometheus custom setup.

https://sandervandevelde.wordpress.com/2021/05/25/deploy-prometheus-with-azure-iot-edge/
Patrick Hofer 0 Reputation points

2024-10-17T06:42:44.5666667+00:00

@chromosome How did you proceed with this?

I have the same issue on multiple arm32 Revolution Pi Devices using Debian. However the same setup works on Raspberry Pi arm64 Devices.

edgeAgent_used_memory_bytes Entries get written to the InsightsMetrics, however only those of host and none of the modules.

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