Oqallisissiat Visvanath Ratnaweera-imit allatat

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I was called to clean a mess in data more than once in the recent times and thinking that the system administrator job is similar to a street sweeper. Now I feel confirmed. It explains why Beppo (of Momo fame) was a hero!
 
Seriously,
> When an H5P activity is viewed for the first time, Moodle automatically generates an export `.h5p` file and stores it in `mdl_files` with:
>
> - `component = core_h5p`
> - `filearea = export`
> - `contextlevel = 10` (system context)
>
> This is by design and functions correctly. The problem occurs when an H5P activity is
**deleted** — Moodle removes the activity record from `mdl_h5p` but does **not** delete the corresponding export file from `mdl_files` or from disk.
 
That is indeed a bug in the size of a mammoth.

> The scheduled task `\core\task\h5p_clean_orphaned_records_task` exists but does not handle cleanup of these orphaned export file records. This is the known gap described in MDL-70700.
 
There it is - since Moodle 3.x, not assigned to anybody, priority low. Must be dead, only a fossil now. We can put it to display together with the exploding PDFs and exponentially multiplying quiz questions.
trist
 
Edit: Almost missed posting it. I thought "Save the changes" saved the post, whereas way, way down at the bottom of the page it was waiting with this, now well-known red-and-green flag:
 
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I don't know whether related, but this rating is 10 min old, nothing happening:
 
 
I am posting this in a separate tab of the same browser.
 
Yeah, yeah. An excuse to say, people don't want to write forum posts anymore!
trist
 
Edit: When I visit the thread in a third tab, I see that the rating has been recorded:
 
 
But the first tab still doesn't show it (still at the first screenshot).
 
Edit of edit: Saving this post landed in "Please tick the box to verify you are human" with the "box" (the green circle) already ticked,
 
Edit of edit of edit: Needed another iteration.
 
Edit of edit of edit of edit: Trying to see who rated the post (me), I landed in this:
 
 
But I posted two posts in the last 10 minutes and editing and saving this very post!
trist((
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Which box, do tell me! 

Don't tell me this is a poor Internet connection. 

BTW, the figures corr. to my wireless connection. If I connect the laptop to the router by cable, I am in the 800-900 Mbits/s range, again since the Ethernet connection is 1 Gbit/s "only". The router has a 10 Gbit/s port but my laptop doesn't.

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I assume this is why you had to analyze the code: Restoring course is very slow.
 
Although it is an exceptionally bis course, it is also a chance to improve the performance of Moodle for everybody. Linking it here since that information is relevant when the developers look in to this issue.