Hello,
I have a big problem that crash our system...
- Machine in DEBIAN 9
- MariaDB in database
One of our services offers a test with about 50 users and the server falls.
The test is carried out in "Kiosk" mode
In addition, a test with 150 users is normally carried out with another service.
My user database has about 300,000 users. (SSO)
After analysis it is a problem with MySql.
The CPU is 100% consumed by MySql.
The request that crashes the system is:
- $query = 'SELECT COUNT(DISTINCT(usr_id)) as num FROM rbac_ua '.
The public function getNumberOfAssignedUsers(Array $a_roles) that contain this request is in the class "class.ilRbacReview.php"
What do you think is the problem?
Thank you for your help
Laurent