Downloading app content of a function App gives error 500, not enough space on the disk

Marin Binzari 0

Hi there. I have a NodeJS Function App in Azure deployed via Azure Pipelines with SST. The App Service plan is a pay as you go whith sku: Y1 and Operating System: Windows

I wanted to download app content including app settings in order to run the function locally. When doing so, I receive error 500 and the details show:

Server Error in '/' Application. There is not enough space on the disk.

Screenshot:

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Shireesha Eeraboina 1,240 Reputation points Microsoft Vendor

2025-01-31T09:39:18.28+00:00
Hi @Marin Binzari ,

Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

The error message "There is not enough space on the disk" indicates that the disk space allocated for your Azure Function App is inadequate. This situation can arise when the application consumes all available disk space, especially in the temporary storage utilized by the Azure environment.

Check the disk usage of your Function App to identify what is using up space. You can use the Azure Portal to track the storage metrics. If there are any unnecessary files or logs, delete them to free up space.

If your application needs additional storage, consider setting up local storage resources to handle temporary files more efficiently.

For data that needs to be retained, utilize external storage solutions such as Azure Blob Storage or Azure SQL Database instead of depending on the local disk.

If the problem continues after following these steps, you may need to upgrade your App Service plan to a higher SKU that offers additional resources.

For your reference, please review the following documentations for further clarification:

No space is available on drive E or F

Resolve issues when creating, deleting, or restoring Azure function apps

I hope this helps! Let me know if you have any further questions or need additional assistance.
Pinaki Ghatak 5,580 Reputation points Microsoft Employee

2025-01-31T22:27:34.8133333+00:00
Hello @Marin Binzari

The error is that you are running out of disk space.

To resolve this issue, you can try the following steps:

Check the disk usage of your Function App. You can do this by going to the "Metrics" section of your Function App in the Azure portal and selecting the "File System" metric. This will show you the disk usage of your Function App over time.

If the disk usage is close to the limit, you can try deleting unnecessary files or increasing the disk space limit of your Function App. To increase the disk space limit, you can go to the "Scale up (App Service plan)" section of your Function App in the Azure portal and select a higher pricing tier that offers more disk space.

If the disk usage is not close to the limit, you can try restarting your Function App and then downloading the app content again. To restart your Function App, you can go to the "Overview" section of your Function App in the Azure portal and select the "Restart" button.

I hope this helps.
Shireesha Eeraboina 1,240 Reputation points Microsoft Vendor

2025-02-03T01:03:59.65+00:00

Hi @Marin Binzari ,

Just checking in to see if the information above was helpful. If you have any further updates on this issue, please feel free to post them here.
Marin Binzari 0 Reputation points

2025-02-03T12:10:28.7366667+00:00

Hi @Shireesha Eeraboina , I have fixed the issue by moving a couple of functions to another app service plan.
Shireesha Eeraboina 1,240 Reputation points Microsoft Vendor

2025-02-04T05:25:09.77+00:00

Hi @Marin Binzari ,

Thanks for your response and glad to know that your problem has been resolved. I have converted my comment to answer.

please click Accept Answer and Yes for the provided answer. This will help other community members with similar issues find the solution more easily.

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