Hello, I have configured a cron job with plesk in my droplet to run a laravel command every minute
/opt/plesk/php/7.1/bin/php /var/www/vhosts/website/laravel/artisan schedule:run
This executes the Laravel scheduler, that is filled with tasks to run at certain time, lets say send emails at 10:00 and send SMS at 11:00
So when the cron runs the scheduler and a task is found at the same time it executes the task, eg 9.58 no tasks 9.59 no tasks 10:00 send emails 10:01 no tasks
My problem is that FOR SOME STRANGE REASON the scheduler is delayed at some times, so the problem is like this 9.58 no tasks 9.59 no tasks 10:01 no tasks 10:01 no tasks
If I run this command from command line, it runs instantly, with no delay. But for some reason when this is executed from the cron, sometimes is delayed. I have tested the cron from inside plesk, there is a button Run now and is true, for some reason sometimes it takes about 65 seconds to run the cron job or the command artisan schedule:run
Any ideas? This only happens in the droplet I have, not in local environment.
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Accepted Answer
The issue was caused by depleted entropy by PHP script.
To resolve the issue generate entropy by using haveged daemon:
-
Enable EPEL repository:
yum install epel-release -
Install daemon with the following command and enable it:
chkconfig haveged on systemctl start haveged```
Hi @unixynet, I have disabled the Laravel scheduler cron and create a simple cron with a php file that records time of execution, and the problem seems to still be there… I’m thinking this is more of a server issue than a laravel. See results:
Cron logs
Oct 1 10:01:01 localhost CROND[2315]
Oct 1 10:02:01 localhost CROND[2388]
Oct 1 10:03:01 localhost CROND[2440]
Oct 1 10:04:01 localhost CROND[2493]
Oct 1 10:05:01 localhost CROND[2566]
Oct 1 10:06:01 localhost CROND[2627]
Oct 1 10:07:01 localhost CROND[2743]
PHP file execution logs
Monday, 01-Oct-2018 10:00:01 EDT
Monday, 01-Oct-2018 10:05:42 EDT
Monday, 01-Oct-2018 10:05:42 EDT
Monday, 01-Oct-2018 10:05:42 EDT
Monday, 01-Oct-2018 10:05:42 EDT
Monday, 01-Oct-2018 10:05:42 EDT
Monday, 01-Oct-2018 10:06:01 EDT
Monday, 01-Oct-2018 10:07:01 EDT
Cron looks OK. How’s your DB? Can you enable the slow log to see if any queries are slowing things down and thus affecting event clearing?
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