Problem uploading from Opencast Studio (via Moodle Block) and LTI

[s.la...@googlemail.com]

Hello,

while my editor problem still is unsolved, we are hitting another new problem.

Opencast Studio isn't that much used at our instance but we now noticed, after recording a video longer than about 8 mins leads to not being able to upload it from the Studio web app.

After ending a short recording (less than about 8 mins) I'm able to upload the recorded videos.

If the recording took longer I'm not able to upload anymore because the browser can't download the "series.json" so it leads to the error "Could not load available series."

The workaround for now is to save the recordings locally and upload via the Moodle block, but that's not the way it's supposed to be.

Before upgrading to OC 16 it was possible to record longer videos and upload them directly without any issues.

I attach two screenshots off the browser network console to show what is happening.

To me it looks like kind of session is timing out while recording, so the "/lti"-endpoint redirects to the login page.

Was there any change since OC 13?

[Lukas Kalbertodt]

Studio requests `/info/me.json` and `/lti` every 5min (also during
recording), precisely in order to avoid session timeouts. There
shouldn't have been any change regarding that on the Studio side in the
past 2 years. I cannot comment on whether anything changed on the
Opencast side regarding LTI session keep-alive. Hopefully anyone else
knows more.

Quick aside: one might think "just load the list of series in the
beginning", but that wouldn't help as the uploading in the end also
requires a functioning session.


Lukas

> To unsubscribe from this group and stop receiving emails from it, send
> an email to users+un...@opencast.org
> <mailto:users+un...@opencast.org>.

[Waldemar Smirnow]

Hi Lukas,

may be you hit an timeout issue in OC 15+. I've documented it in
https://github.com/opencast/opencast/issues/6260. The work around is
also documented there.

Waldemar

Am 28.10.24 um 11:54 schrieb Lukas Kalbertodt:

> an email to users+un...@opencast.org.