Nextcloud aborts file downloads from samba external storage after 1GB

[mdimura]

Nextcloud aborts the downloading of a file after 1GB, if it is on an external samba storage. When I download large files from the local storage via nextcloud - everything works fine.
I thought it is due to the proxy_buffering:

By default, downloads will be limited to 1GB due to proxy_buffering and proxy_max_temp_file_size on the frontend.

but setting proxy_buffering off; in /etc/nginx/.../nextcloud.conf and even nginx.conf did not help.
I also checked the logs, but nothing stands out:

nginx/xxx-access.log:174.11.2.119 - - [05/Sep/2019:16:02:41 +0300] "GET /nextcloud/remote.php/webdav/xxx/test3GB.mkv?downloadStartSecret=p6qwexyz12 HTTP/2.0" 200 1074641798 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0"

Note the 1074641798 in the request size. The file is actually ~3GB.

[sjurske]

I have the same issue. Haven't been able to fix it nor find out where the issue is coming from

[MrShoenel]

I can confirm this issue, too. For me, the limit is exactly 1,090,519,040 bytes, tried it several times.

However - and this is where things get fuzzy - I only seem to hit that limit if the download takes longer than a few minutes (I don't know exactly how long). In other words, if you are fast enough, you can download large files normally, I just don't know how fast and why this happens. As soon as the timeout is exceeded, the limit seems to be 1GB.

In my case, I tried to download the same ~18.5GB file with a 5 MBit/s limit, and it failed always at the 1GB limit.
Then, I downloaded the same file without speed limit (got ~290 MBit/s) and it worked normally.

[MrShoenel]

Update: It seems the issue has something to do with the smbclient that NC uses when an external storage is configured using SMB/Cifs. If I do mount the same directory in the OS by myself (using mount.cifs) and then configure an external storage to use that local folder, the downloads seem to be working normally.

[mdimura]

@MrShoenel, same for me

[XueSheng-GIT]

I'm on nextcloud 23.0.1 and have the same issue. Download of files which are stored on smb/cifs times out (download size at that point is around 500 mb). Nextcloud is behind a nginx proxy and disabling buffering doesn't have an influence.
I also increased the timeout of the share according to nextcloud/server#17258 but that didn't change anything.

[MrShoenel]

@XueSheng-GIT see my last comment for a working workaround, should that be an option for you. I have been using it since then without problems. For example, mount your network share under /mnt/share, and then configure an external storage in NC using the type Local and the path as configuration.

[XueSheng-GIT]

Thanks for your suggestion!
My issue was solved already: nextcloud/server#31308 (comment)
Seems I forgot to mention this in this report, sorry.

[zamentur]

Thanks for reporting your issue is solved :) I close this ticket