Visvanath Ratnaweera

Séverin and all

How diverse the Moodle community is! One loves when the boat rocks, it makes others seasick!

This is what or somebody in between said to me. I thought it was the transition to 4.3!

Hi

I'm not sure that was the information you were looking for. If not, please ask again.

One practical ceiling which people often hit is the volume of data, 99% of them in form of files, people upload in to Moodle. That is not something Moodle can predict, it is completely up to the users and their administrators. Unfortunately Moodle doesn't know a quota system per user, for example. It can limits to the size of a file that can be uploaded, individually - not as a total. For a very rough figure you can multiply the average size a user would upload by the number of users.

1 TB sounds impressive, but you must have come across this law in IT, whatever the storage you have, you'll fill it in a very short time!

Hi AL

Yes, the power of RPi 4 B as a server is amazing.

I missed a better occasion to monitor the load. The earlier live session has even more "action". I say load averages of 5 in htop. But no recording, a firewall blocked the monitoring traffic.

CPU temperature. Yes, that is the place where I should have been more cautious. The Pi 4 B has these two tiny "heat sinks", these may be 20 m square Aluminium fins, pasted to the chips. No fans, I don't like them. And worse, it is in the standard black Pi 4 case made of plastic and inside a closed rack cupboard. It is in a corner of a larger office space which has air conditioning. The history is that the RPi was initially a MoodleBox. So I didn't want to lose the wi-fi signal by putting the RPi in a metal case. I changed it last-minute to a regular LEMP server, manually installed. Had not many options in "housing" the server.

Yes, the graph shows that the CPU touched 80 C, the throttling temperature. I will give it a heavier heat at the next chance.

@Brett, according to the specs a RPi 4 *can* draw up to 15 W since 3 A are recommended for the power supply. I wish, I had a proper Watt meter on site! I quoted what I generally see on the web. Once I thoroughly measured the consumption of a RPi 2, can't remember the numbers, but they were well below the specs. An important reason is as headless server I don't connect anything to the device other than the Ethernet. And the load is spurious as usual in this kind of applications - only the live class generate heavy load, otherwise idling.

May be it is me, who can not follow what you are saying. I need an example to understand your scenario.

I don't see the connection to https://moodlecloud.com/. The Workshop module is in Moodle core, so it is the same whether MoodleCloud or DIY installation or a shared server.