My name is Gnanendra, we are running an instance of moodle for our college.We are new to moodle and are still learning.
The instance of moodle 3.9.1 (php 7.4.3, apache 2.4.41, mysql 14.14 Distrib 5.7.31) on ubuntu 20.04(updated).
The specs of the hardware(server) for the moodle are as follows:
The CPU specifications are : => Intel Xeon x5650 6 core processor.
Primary storage which is the RAM size is : => 128gb memory DIMM DDR3 ram.
Regarding db and apache, the mysql database server, apache and moodle run on the exact same machine as mentioned above.
Apart from that the cron.php is automated to run everyday on 1:01 am(Tried to run it for every minute as suggested on the site but did not affect the site with that, still got "site not found" for 250 users).
When all the users try to login on a time say 9 am, it functions fine until 250 users logged in. After 250, we get an error saying 'Page not found'. We were at least expecting it to be functional for around 600 students. Had a clean installation without any errors.
They use it for zoom lti via external tool and for nothing else. Since this issue is persistent, we are not able to conduct any other things like quizzes or coding exams.
we are not able to bring an online platform for the students to be functional on time, Please help me and my team to resolve it.
Please ask me if you have any other queries regarding the moodle instance which am running, I will provide you with the best of my knowledge.