azure.iot.device.common.transport_exceptions.ConnectionFailedError #1145
Comments
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Try adding an If that doesn't help, you'll need to provide more information for us to investigate further - your code, as well as the version of the azure-iot-device SDK you are using. |
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Thanks you cartertinney. I will try with adding async.sleep(5) and let you know the out come. Mean while here is my code and deployment files and versions. Version Infoazure-iot-device~=2.7.0 Copyright (c) Microsoft. All rights reserved.Licensed under the MIT license. See LICENSE file in the project root forfull license information.import asyncio global countersTEMPERATURE_THRESHOLD = 25 Event indicating client stopstop_event = threading.Event() def create_client(): async def run_sample(client): def main(): if name == "main": deployment.arm32v7.json |
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Full Failure Log follows... root@tcs-imx6:~# iotedge logs gwmodule The above exception was the direct cause of the following exception: Traceback (most recent call last): |
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Hi Cartertinney, <6> 2023-05-30 09:49:20.780 +00:00 [INF] - Client tcsgateway1/gwmodule in device scope authenticated locally. |
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You need to Additionally, in the future, please format your code and logs by using adding ``` before and after. That's three ` characters. |
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Edge Module getting disconnected with " <4> 2023-05-31 10:03:38.355 +00:00 [WRN] - "Closing connection for device: tcsgateway1/gwmodule, Microsoft.Azure.Devices.ProtocolGateway.ProtocolGatewayException: Channel closed., " Logs from edgeHub follows.. Logs from Edge Module "gwmodule" follows... My Python Code for Edge Module follows.. |
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My apologies - I made a mistake. Seeing the better formatted logs and code make it clear to me. You're now running into an issue with the async event loop because of what I said to you - You should keep main as a synchronous function ( def main():
if not sys.version >= "3.5.3":
raise Exception( "The sample requires python 3.5.3+. Current version of Python: %s" % sys.version )
print ( "IoT Hub Client for Python" )
time.sleep(5)
<....>
if __name__ == "__main__":
main()Additionally, when formatting, please use backticks (`) not apostrophes ('). I have edited your post accordingly for correct formatting. |
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Thank you.. But still the issue continues. The connection between my Edge Module "gwmodule" and the edgeHub is getting dropped with in 3 to 4 sec. Saying "Protocol Gateway Exception"
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@ramumr06 - I recommend you change the password on your container repository. You accidentally leaked it in the deployment manifest above. If that password gives write access to the repository, I recommend destroying the repository and creating a new one from scratch. |
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@BertKleewein - I will update the registry password. This is just to secure my registry right? |
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Hi @ramumr06 , yes, my comment was only about securing your registry. Logs from edgehub don't really help. logs form your gwmodule are more useful, but I 'm not sure what you mean when you say "Still the issue continues". Do you mean you're still seeing the The The |
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The "Event Loop" Issue resolved. Even the hostname is defined in the config.toml file. My other Edge Module SimulatedTemperatureSensor from azure market working fine. edgeHub log showing following error.. |
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Hello guys, Having the same issue too, and I tried the time.sleep(5) trick. I have been having that same issue for a long time now, and only on python modules, whenever the module is hard shutdown, without executing the shutdown function, for example when the device is unplugged. Main function: ##################################
# Main function / Env settler
##################################
def main():
""" Main function.
Is used to setup the whole module.
"""
if not sys.version >= "3.5.3":
raise Exception( "The module requires python 3.5.3+. Current version of Python: %s" % sys.version )
log("IoT Hub Client for Python" )
time.sleep(5)
# NOTE: Client is implicitly connected due to the handler being set on it
client = create_client()
# Define a handler to cleanup when module is is terminated by Edge
def module_termination_handler(signal, frame):
log("IoTHubClient stopped by Edge")
stop_event.set()
# Set the Edge termination handler
signal.signal(signal.SIGTERM, module_termination_handler)
# Run
loop = asyncio.get_event_loop()
try:
loop.run_until_complete(run_module(client))
except Exception as e:
log("Unexpected error %s " % e)
raise
finally:
log("Shutting down IoT Hub Client...")
loop.run_until_complete(client.shutdown())
loop.stop()
loop.close()
if __name__ == "__main__":
main()Module logs: Before adding the time.sleep(5) After adding the time.sleep(5) |
Hi All,
I have built (docker based image) Python based Sample Edge module and deployed on to my ARM based Edge device i.e Gateway. This edge module thrown following errors When i executed "iotedge restart gwmodule" command.
root@tcs-imx6:~# iotedge logs gwmodule
IoT Hub Client for Python
Subscribe for input failed. Not enabling feature
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/azure/iot/device/common/mqtt_transport.py", line 396, in connect
host=self._hostname, port=8883, keepalive=self._keep_alive
File "/usr/local/lib/python3.7/site-packages/paho/mqtt/client.py", line 914, in connect
return self.reconnect()
File "/usr/local/lib/python3.7/site-packages/paho/mqtt/client.py", line 1044, in reconnect
sock = self._create_socket_connection()
File "/usr/local/lib/python3.7/site-packages/paho/mqtt/client.py", line 3685, in _create_socket_connection
return socket.create_connection(addr, timeout=self._connect_timeout, source_address=source)
File "/usr/local/lib/python3.7/socket.py", line 707, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/usr/local/lib/python3.7/socket.py", line 752, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -2] Name or service not known
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "./main.py", line 102, in
main()
File "./main.py", line 78, in main
client = create_client()
File "./main.py", line 55, in create_client
client.on_message_received = receive_message_handler
File "/usr/local/lib/python3.7/site-packages/azure/iot/device/iothub/sync_clients.py", line 772, in on_message_received
"on_message_received", pipeline_constant.INPUT_MSG, value
File "/usr/local/lib/python3.7/site-packages/azure/iot/device/iothub/sync_clients.py", line 504, in _generic_receive_handler_setter
self._enable_feature(feature_name)
File "/usr/local/lib/python3.7/site-packages/azure/iot/device/iothub/sync_clients.py", line 113, in _enable_feature
callback.wait_for_completion()
File "/usr/local/lib/python3.7/site-packages/azure/iot/device/common/evented_callback.py", line 70, in wait_for_completion
raise self.exception
File "/usr/local/lib/python3.7/site-packages/azure/iot/device/common/pipeline/pipeline_stages_mqtt.py", line 193, in _run_op
self.transport.connect(password=password)
File "/usr/local/lib/python3.7/site-packages/azure/iot/device/common/mqtt_transport.py", line 418, in connect
raise exceptions.ConnectionFailedError(cause=e)
azure.iot.device.common.transport_exceptions.ConnectionFailedError: ConnectionFailedError(None) caused by gaierror(-2, 'Name or service not known')
#########################
Few of my workspace details.. I mentioned PythonModule in Last line of the deployment.json . Do i need to change it to "SampleModule" .
tcs@tcs-Latitude-5590:
/new-workspace/azure-build/EdgeSolution/modules/SampleModule$ ls/new-workspace/azure-build/EdgeSolution/modules/SampleModule$ cat ../../config/deployment.arm32v7.jsonDockerfile.amd64 Dockerfile.arm32v7 Dockerfile.arm32v7-OLD Dockerfile.arm64v8.debug module.json requirements.txt
Dockerfile.amd64.debug Dockerfile.arm32v7.debug Dockerfile.arm64v8 main.py other-main.py
tcs@tcs-Latitude-5590:
{
"modulesContent": {
"$edgeAgent": {
"properties.desired": {
"schemaVersion": "1.4",
"runtime": {
"type": "docker",
"settings": {
"minDockerVersion": "v1.25",
"loggingOptions": "",
"registryCredentials": {
"ipsscr": {
"username": "ipsscr",
"password": "******",
"address": "#######"
}
}
}
},
"systemModules": {
"edgeAgent": {
"type": "docker",
"settings": {
"image": "mcr.microsoft.com/azureiotedge-agent:1.4",
"createOptions": "{}"
}
},
"edgeHub": {
"type": "docker",
"status": "running",
"restartPolicy": "always",
"settings": {
"image": "mcr.microsoft.com/azureiotedge-hub:1.4",
"createOptions": "{"HostConfig":{"PortBindings":{"5671/tcp":[{"HostPort":"5671"}],"8883/tcp":[{"HostPort":"8883"}],"443/tcp":[{"HostPort":"443"}]}}}"
}
}
},
"modules": {
"SampleModule": {
"version": "1.0",
"type": "docker",
"status": "running",
"restartPolicy": "always",
"settings": {
"image": "ipsscr.azurecr.io/gwmodule:0.0.1-arm32v7",
"createOptions": "{}"
}
},
"SimulatedTemperatureSensor": {
"version": "1.0",
"type": "docker",
"status": "running",
"restartPolicy": "always",
"settings": {
"image": "mcr.microsoft.com/azureiotedge-simulated-temperature-sensor:1.4",
"createOptions": "{}"
}
}
}
}
},
"$edgeHub": {
"properties.desired": {
"schemaVersion": "1.4",
"routes": {
"SampleModuleToIoTHub": "FROM /messages/modules/SampleModule/outputs/ INTO $upstream",
"sensorToSampleModule": "FROM /messages/modules/SimulatedTemperatureSensor/outputs/temperatureOutput INTO BrokeredEndpoint("/modules/SampleModule/inputs/input1")"
},
"storeAndForwardConfiguration": {
"timeToLiveSecs": 7200
}
}
},
"PythonModule": {
"properties.desired": {
"TemperatureThreshold": 25
}
}
}
}
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