Azure IoT (Hub, DPS, SDKs)

This forum is to get feedback on Azure IoT Hub, Azure IoT HubDevice Provisioning Service (DPS), and Azure IoT SDKs. This forum will help the engineering team collect feedback from our customers and users and help us understand and prioritize the roadmap.

For providing feedback on other IoT related services, please do so on the corresponding forums.


  1. 49 votes
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  2. Enable per device message throttling capability

    From the cost and cyber security perspective, its ideal to set message throttling/quote per device instead of at the IoTHub Level. there is a possibility that one rogue device eating the complete limit of one or more IoTHubs if we cant throttle per device.

    https://github.com/MicrosoftDocs/azure-docs/issues/25343

    17 votes
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  3. When the connection of Azure IoT Hub from Node-RED is disconnected, an error occurs and it cannot be reconnected.

    I have Node-RED installed on my Raspberry Pi.
    Connecting to Azure IoT Hub with Mosquitto using Node-RED.
    Sometimes I'm in trouble because the connection with Azure IoT Hub is lost.
    Checking with Log Analytics, the following error appears.

    <ERROR>
    This article describes the causes and solutions for 404104 DeviceConnectionClosedRemotely errors.

    It is very annoying that the reconnection is not done.
    I want a solution.

    6 votes
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  4. gc object already tracked

    considering the python lib azure-iothub-device-client (1.4.6)
    tested on a Raspberry Pi 3 B+ with python 3.5.3
    the issue seems related to the "sendeventasync - callback"

    https://github.com/Azure/azure-iot-sdk-python/issues/148

    4 votes
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  5. From an MQTT client, you can publish on a different topic than expected

    I have seen this behaviour, is this as expected?
    I connect as deviceid1, and I can publish to devices/deviceid2/messages/events/ . The message is publish to devices/deviceid1/messages/events/

    3 votes
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  6. Getting 404 Response While Trying to Open Get Started Kit

    The Get started kit anand many other examples are not available, when we attempted to open those examples. We are getting 404 response on those examples. The Get Started Kit.
    https://github.com/Microsoft/vscode-iot-workbench/blob/master/docs/iot-devkit/devkit-get-started.md

    2 votes
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  7. IoT-Central will disconnect and reconnect again in an exact 48 mins

    It seems due to the MQTT version issue, the SAS token cannot be updated with live connection when it's expired. It makes a weird situation that our device has to re-connect in every 48 mins...That does not make sense at all. Please help to fix this.

    2 votes
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  8. Do we have similar document step by step guide for C#? ( .net consloe app as simulated device)

    Do we have similar document step by step guide for C#? ( .net consloe app as simulated device)

    2 votes
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  9. IoTHubClient_LL_DoWork() blocks for 5 seconds the execution while wifi nic is down

    Scenario:
    -using LL APIs;
    -using the retry policy IOTHUBCLIENTRETRY_INTERVAL;
    -device is being connected to the azure iot hub by a wifi NIC, then the NIC is disabled on the board;

    Problem:
    When the device network interface is disconnected (i.e. wifi nic is disabled) the IoTHubClientLLDoWork() call blocks execution for 5 seconds each time is being called.

    The reason should be that the getaddinfo() underlying call is blocking, this is in the log traces each five seconds indeed:

    /git/c-utility/adapters/socketioberkeley.c Func:socketioopen Line:627 Failure: getaddrinfo failure -3.

    2 votes
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  10. The IoT Hub C SDK for ESP32 and Arduino is incomplete after being made

    I have download azure-iot-arduino repository (https://github.com/Azure/azure-iot-arduino).
    I have also downloaded the pre-requisite azure-iot-arduino repository (https://github.com/Azure/azure-iot-pal-arduino) and run the makeskd.py to install the Azure IoT C SDK libraries. The script executes without error, but the iothubIItelemetysample.ino sketch does not compile.
    The compilation error says there are missing files from the SDK folder azure-iot-pal-arduino\pal\azurecshared_utility . The only file in the folder is a xlogging.h file.

    1 vote
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  11. Integration of LogicApps Triggers with the IoTHub are not working correctly

    The IoTHubs Events of LogicApps are not working correctly. As far as I can tell, a LogicApps application is only executed when one chooses all IoTHubs Event Types:
    -Microsoft.Devices.DeviceCreated
    -Microsoft.Devices.DeviceDeleted
    -Microsoft.Devices.DeviceTelemetry
    -Microsoft.Devices.DeviceConnected
    -Microsoft.Devices.DeviceDisconnected
    Selecting only a subset of these 5 will result in the LogicApps application to never execute even when the event has happened.

    For example: Selecting
    -Microsoft.Devices.DeviceCreated
    -Microsoft.Devices.DeviceDeleted
    -Microsoft.Devices.DeviceTelemetry
    -Microsoft.Devices.DeviceConnected
    -Microsoft.Devices.DeviceDisconnected
    as Event Types to trigger the LogicApps application and creating/deleting devices via the IoTHub UI will result in no Trigger. Only when one adds the last Event Type will the LogicApps application be triggered.

    1 vote
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  12. Configure Properties on IotHub doesn't work

    I ran the following command
    az iot hub update --name {your iot hub name} \
    --set properties.storageEndpoints.'$default'.connectionString="{your storage account connection string}" in a bash script and I receive

    Couldn't find '$default' in 'properties.storageEndpoints'. Available
    options: []

    I just followed the steps provided https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-configure-file-upload-cli to enabled file uploading for my iotHub instance.

    1 vote
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  13. IoT hub number of devices

    I had 5 IoT devices in IoT hub. Now I have removed 1, but IoT hub still shows the number of 5 IoT devices

    1 vote
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  14. Azure IoT Developer's Guide Ebook unavailable

    The below link doesn't contain any ebook/PDF. Also, the 'View Report' button redirects to Microsoft Homepage.
    https://azure.microsoft.com/en-us/resources/iot-developers-guide/

    1 vote
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  15. IOT Hub and Device Prov. Service Security

    Hi Team,

    current documentaiton does not provide much details about how to secure IOT HUB/Device provisioning service by adding api layer (NGINX) on top of core paas services.

    Is device connecting using X.509 CA certificates to IOT HUB/DPS is enough secure? do we need to add extra gateway layer on top of these PAAS services?

    Thanks
    Bhupal

    1 vote
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  16. Is Metrics/Diagnostics under IOT Hub to view Device telemetries or it is for IOT Hub health monitoring?

    Hi team, bit confused with the documentation about metrics and diagnostic logs.

    is metrics and diagnostic logs feature under IOT Hub is to view the messages sent by devices connected to that hub AND/OR this feature is only to view the logs of IOT hub performances and failures?

    what is the recommended PAAS application to view the messages/logs sent by devices? I don't want to build new application or use power BI tool. looking for something within Azure itself which lets me view the messages sent by devices more interactively (filer/report etc...)

    Thanks
    Bhupal

    1 vote
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  17. 1 vote
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  18. gov

    test

    1 vote
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  19. 将 Raspberry Pi 连接到 Azure IoT 中心 (Node.js) 程序运行出错

    运行:
    sudo node index.js <设备连接字符串>
    时,出错。错误信息如下:

    /home/pi/iot-hub-node-raspberrypi-client-app/nodemodules/node-wiring-pi/nodemodules/bindings/bindings.js:91
    throw err
    ^

    Error: Could not locate the bindings file. Tried:
    → /home/pi/iot-hub-node-raspberrypi-client-app/nodemodules/node-wiring-pi/build/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/node
    modules/node-wiring-pi/build/Debug/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/nodemodules/node-wiring-pi/build/Release/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/node
    modules/node-wiring-pi/out/Debug/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/nodemodules/node-wiring-pi/Debug/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/node
    modules/node-wiring-pi/out/Release/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/nodemodules/node-wiring-pi/Release/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/node
    modules/node-wiring-pi/build/default/nodeWiringPi.node
    → /home/pi/iot-hub-node-raspberrypi-client-app/node_modules/node-wiring-pi/compiled/8.11.1/linux/arm/nodeWiringPi.node

    at bindings (/home/pi/iot-hub-node-raspberrypi-client-app/node_modules/node-wiring-pi/node_modules/bindings/bindings.js:88:9)
    
    at Object.&lt;anonymous&gt; (/home/pi/iot-hub-node-raspberrypi-client-app/node_modules/node-wiring-pi/index.js:1:99)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.&lt;anonymous&gt; (/home/pi/iot-hub-node-raspberrypi-client-app/index.js:10:13)

    另外,文档中提示的iot中心里面的连接主密码,在文中没有地方提到如何使用呀,只是第二个设备连接串使用了。是不是漏了?

    1 vote
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  20. Samples azure-iot-sdk-c-master no working

    Hello, I'm trying to use the path in this page to run the samples in Visual Studio 2017 but they still have many problems.
    https://github.com/Azure/azure-iot-sdk-c/blob/master/doc/settingupvcpkg.md

    1 vote
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