Azure Function Outgoing SSL Exceptions

Question

Hi,

Having a problem that seems to have occurred without me making any changes.

My Azure Functions are having issues connecting via SSL to external APIs (My functions talk to an Azure Table Storage account via HTTPS)

The logs I'm seeing are similar in both functions:

Microsoft.Azure.Cosmos.Table.StorageException : The SSL connection could not be established, see inner exception. ---> System.Net.Http.HttpRequestException : The SSL connection could not be established, see inner exception. ---> System.Security.Cryptography.CryptographicException : Error occurred during a cryptographic operation. at Interop.Crypto.X509StoreSetVerifyTime(SafeX509StoreHandle ctx,DateTime verifyTime) at Internal.Cryptography.Pal.OpenSslX509ChainProcessor.InitiateChain(SafeX509Handle leafHandle,X509Certificate2Collection customTrustStore,X509ChainTrustMode trustMode,DateTime verificationTime,TimeSpan remainingDownloadTime)

Not a clue what's causing this other than maybe something to do with the clocks changing (British Summer Time) on Linux?

Is someone able to help please?

Thanks
Ben

Answer 1

Hi anonymous user ,

Thanks for reaching out to Q&A. Please help me with the below queries,

1. Please provide the complete stack of the error message
2. Are you able to identify which line of code is causing this error? If yes, please share the code snippet
3. Are you able to see this error when the functions are running locally?
4. How frequent are you seeing this error?
5. Language stack along with version? If its .net core or framework? Please provide the version of .net
6. Do you see any donwtime at the cosmos table storage during the time this issue is seen?

Answer 2

Bump - any idea what's going on here?

Answer 3

I started to get the same error without doing any changes. Also running on a linux consumption plan.

Answer 4

Any update on this? I am also facing the same error.