Cron job duplicates tickets when running multiple server with loadbalancer

[huyhoang8398]

Prerequisites

• [x] Can you reproduce the problem in a fresh installation of the "develop" branch?
• [ ] Do you have any errors in the PHP error log, or javascript console?
• [x] Did you check the osTicket forums?
• [x] Did you perform a cursory search to see if your bug or enhancement is already reported?

For more information on how to write a good bug report

Description

Im currently running OSticket hosted in AWS ec2 with AWS load balancer, so that mean i have 3 osticket server using same database and files But i have a problem with cronjob, currently my cron job is: 0,10,15,20,30,40,45,50 * * * * php /var/www/html/labcollector.com/tickets/api/cron.php >/dev/null 2>&1

Since i have several server running under loadbalancer, so it makes ticket dupplicate

What should i do for this case?

[JediKev]

@huyhoang8398

Have 1 cron job running only on 1 server.

Cheers.