Newly created durable function with default code in azure portal returns 404 not found while running

Sangamesh Hallur 6

Hello Team,

I have created durable functions with below function names
Orchestration starter function - HttpStarterFunction
Orchestrator function - OrchestratorFunction
Activity function - Hello

while running HttpStarterFunction from azure portal I am passing functionName parameter as OrchestratorFunction (Orchestrator function) but its returns 404 not found. What could be the issue here?

MuthuKumaranMurugaachari-MSFT 22,381 Reputation points

2023-01-04T17:09:50.883+00:00

@Sangamesh Hallur Thank you for reaching out to Microsoft Q&A. I tested the same scenario but was unable to repro this error. I got 202 Accepted as a response. I would like to see if you have any other details from Monitor Tab from the Function Menu. If so, please share the details.
Sangamesh Hallur 6 Reputation points

2023-01-09T07:31:49.09+00:00

Hello MuthuKumaran,

Under monitor tab for HttpStarterFunction its not showing any invocation traces for error/success even though request returned 404 not found. I have tried with GET and POST with different key(default and master).

Kindly please suggest if any other things needs to check.

Thanks
Sangamesh
MuthuKumaranMurugaachari-MSFT 22,381 Reputation points

2023-01-09T15:17:34.327+00:00

@Sangamesh Hallur Sorry to hear that you are facing this issue. It seems interesting that it didn't have any invocation traces. Would like to quickly check if you have tested function orchestration outside portal like with tool like PostMan or Curl command. Refer Test the durable function orchestration.

Do you have a support plan with us? Otherwise, I can create a one-time free technical support request for you. The reason for that is this would require reviewing our backend logs and support team have the best tools to investigate and find the cause. Please let me know if any additional questions. Would be happy to answer.
Sangamesh Hallur 6 Reputation points

2023-01-11T11:17:18+00:00

Hello MuthuKumaran,

yes i have tried testing in postman also and result is same there too.

Here is the companies app service plan details

Yes please create one-time free technical support for the above issue.

Thanks

Sangamesh
MuthuKumaranMurugaachari-MSFT 22,381 Reputation points

2023-01-11T14:54:32.17+00:00

@Sangamesh Hallur
Sure, I can assist you offline regarding this issue. Please send an email to azcommunity@microsoft.com with subject "Attn: Muthu" referencing this thread and provide details such as Subscription ID in the email.
Greg Jackman 0 Reputation points

2023-01-11T18:34:41.8+00:00

Hi @MuthuKumaran Murugaachari - I am having exactly the same issue as this. I followed the "First Durable Function" guide ([https://learn.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-create-first-csharp) to the letter and I end up with an unresponsive function app ... always giving out 404 from Postman, Chrome, or direct testing through Azure Portal.

Please would you be able to update this thread with any resolution you come to with Sangamesh?

Many thanks, Greg
MuthuKumaranMurugaachari-MSFT 22,381 Reputation points

2023-01-13T14:32:18.8133333+00:00

@Sangamesh Hallur I am yet to receive the details from you via email to create a support request. Would like to follow up and see if you still need assistance. If so, please share the details as requested above.
Sangamesh Hallur 6 Reputation points

2023-01-16T13:35:59.1333333+00:00

Hello MuthuKumaran,

As per the company policy I need to raise this issue in azure portal, can you please help me with process.
MuthuKumaranMurugaachari-MSFT 22,381 Reputation points

2023-01-17T02:52:29.37+00:00
@Sangamesh Hallur Sure definitely.

Do you have a support plan with us? If so, you can go to azure portal, and search "Help + support" in the top search bar. You will navigate to the below page with an option to create a support request.

Then choose options about the problem description like below and submit the request. Our support team will work with you to investigate the cause of the issue.

In case you don't have a support plan with us, then send an email to azcommunity@microsoft.com with subject "Attn: Muthu" referencing this thread and provide Subscription ID in the email (please don't share here). We will just activate a one-time free technical support request for that subscription and share the details in the email on how you can create a support request in the portal. [Note: Subscription Id is required to activate free technical request].

I hope this helps and feel free to add if any questions.
Sangamesh Hallur 6 Reputation points

2023-01-19T12:27:27.89+00:00

Hello @MuthuKumaranMurugaachari-MSFT

Thanks for your detailed explanation, much appreciated. I had contacted support team and got to know that i was getting 404 not found because existing blob trigger was created in local development environment and we cant run durable function in portal which are created in portal. We have to create durable function from visual studio and deploy them into function app.
Sangamesh Hallur 6 Reputation points

2023-01-19T12:32:32.8633333+00:00

@MuthuKumaran Murugaachari I am able to deploy durable function into function app but after deployment existing function got deleted. When I did research on it got to know that if we deploy from visual studio it will overwrite the existing functions. I didn’t get any warning/alert saying that it will overwrite existing function. and now i am not able to delete newly deployed functions also. Getting below error, please help me to delete newly deployed functions from visual studio.
MuthuKumaranMurugaachari-MSFT 22,381 Reputation points

2023-01-19T15:59:56.79+00:00

@Sangamesh Hallur In our doc, we have a note not to mix local and portal development and also deploying to an existing function will always overwrites the contents of the app and hence we recommend setting up continuous deployment.

Based on the error message in the portal, your app is in read-only mode after publishing from VS code and this is due to functions running from package (WEBSITE_RUN_FROM_PACKAGE) - Run your functions from a package file in Azure.

We have a similar discussion in other thread: Deletion of function from function app and you can navigate to azure portal -> <Function app> -> Configuration and change WEBSITE_RUN_FROM_PACKAGE to 0 in application setting and try deleting the function or remove unwanted functions from the code and redeploy your code. If you face any issues with the steps, please let me know.

1 answer

Greg Jackman 0 Reputation points

2023-01-11T18:05:46.6633333+00:00

Hi @MuthuKumaranMurugaachari-MSFT - I am having exactly the same issue as this. I followed the "First Durable Function" guide ([https://learn.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-create-first-csharp) to the letter and I end up with an unresponsive function app ... always giving out 404 from Postman, Chrome, or direct testing through Azure Portal.

Please would you be able to update this thread with any resolution you come to with Sangamesh?

Many thanks, Greg
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MuthuKumaranMurugaachari-MSFT 22,381 Reputation points

2023-01-11T18:16:37.1266667+00:00

@Greg Jackman Sorry to hear that you are facing the issue. I guess you are using latest version but please confirm Azure Function Core Tools version, Durable Function version, .NET SDK version. Sure, I will definitely post our findings here once we find resolution.
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