Good day! Downloading the Course Completion report (Download in spreadsheet format (UTF-8 .csv) or Excel) causes the error 524, from Cloudflare. This particular course has about 17000 participants; very unprecedented for our org. I've tried tuning MariaDB and php-fpm so far. Below are our software and hardware:
Cloud server with 16 cores, 32Gb RAM (20Gb already allocated to MariaDB)
MariaDB 10.5, PHP 7.4, NGINX 1.14.2
Any help will be greatly appreciated. Thanks in advance!