Cronjobs are queued, can't find what is causing this

Posted on October 1, 2018

I’m having what it seems to me a server miss configuration issue. I have setup a droplet with plesk, nothing more, and a small private laravel app. Also have setup a cron to run every minute, the problem is that cron runs every minute but tasks are sometimes queued, I can’t find what is causing this issue.

Cron log:

Sep 30 16:20:01 localhost CROND[28616]
Sep 30 16:21:01 localhost CROND[854]
Sep 30 16:22:02 localhost CROND[988]
Sep 30 16:23:01 localhost CROND[1062]
Sep 30 16:24:01 localhost CROND[1132]
Sep 30 16:25:01 localhost CROND[1199]
Sep 30 16:26:01 localhost CROND[1255]
Sep 30 16:27:01 localhost CROND[1315]
Sep 30 16:28:01 localhost CROND[1411]
Sep 30 16:29:01 localhost CROND[1508]
Sep 30 16:30:01 localhost CROND[1599]
Sep 30 16:31:01 localhost CROND[1670]
Sep 30 16:32:01 localhost CROND[1742]
Sep 30 16:33:01 localhost CROND[1807]
Sep 30 16:34:01 localhost CROND[1874]
Sep 30 16:35:01 localhost CROND[1936]
Sep 30 16:36:01 localhost CROND[1995]
Sep 30 16:37:01 localhost CROND[2062]

Scheduler log:

[2018-09-30 16:20:12] production.INFO: schedule call  
[2018-09-30 16:21:01] production.INFO: schedule call  
[2018-09-30 16:22:02] production.INFO: schedule call  
[2018-09-30 16:23:01] production.INFO: schedule call  
[2018-09-30 16:27:31] production.INFO: schedule call  
[2018-09-30 16:27:31] production.INFO: schedule call  
[2018-09-30 16:27:31] production.INFO: schedule call  
[2018-09-30 16:27:31] production.INFO: schedule call  
[2018-09-30 16:28:01] production.INFO: schedule call  
[2018-09-30 16:29:01] production.INFO: schedule call  
[2018-09-30 16:30:01] production.INFO: schedule call  
[2018-09-30 16:31:01] production.INFO: schedule call  
[2018-09-30 16:32:02] production.INFO: schedule call  
[2018-09-30 16:33:01] production.INFO: schedule call  
[2018-09-30 16:37:53] production.INFO: schedule call  
[2018-09-30 16:37:53] production.INFO: schedule call  
[2018-09-30 16:37:53] production.INFO: schedule call  
[2018-09-30 16:37:53] production.INFO: schedule call

Any ideas where to start?

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