Known Issues · SFTP Gateway Support

Overview

This article lists known issues and their affected versions.

WinSCP error decoding sftp packet

Affects: versions 3.1.0 - 3.2.1

Expected fix: version 3.3.0

Here is a screenshot of the error message from the WinSCP client:

Error message

And here is the error in text format (for search indexing purposes):

Error listing directory '/'
Error decoding SFTP packet (59, 1952805748, 174).

The problem is that WinSCP is unable to list the chroot directory if there is a subfolder that is backed by an SFTP Gateway Folder object.

See this article for more details.

HNS issue

Affects: version 3.1.0

Resolved: version 3.1.1

When logging in as an SFTP user via FileZilla, you may get this error:

Error: Connection timed out after 20 seconds of inactivity
Error: Could not connect to server

Normally, connection timeouts are due to network connectivity issues like NSG rules.

But this can also happen if the Blob storage account is configured with Hierarchical Namespace (HNS).

See this article for more details.

Blob Storage Upload Limitations

Affects: versions 3.1.0 - 3.2.1

Expected fix: version 3.3.0

There currently is an issue when uploading files around or larger than 200 GB.

The error originates from the default block size in the Azure SDK. There is a 50,000 block limit, and the default block size is 4 MB. This results in a file size limit of 195 GB.

See this article for more details.

Timestamp issues

Affects: versions 3.1.0 - 3.2.1

Expected fix: version 3.3.1

There is currently an issue on SFTP Gateway related to timestamps. When viewing your files in an SFTP client, the timestamps show the current date and time, which continuously update to the current time. Files uploaded via SFTP Gateway show normal timestamps.

See this article for more details.