Daily cron job runs twice a day [#2373249]

It's default rules:
0+@ 12 * * *
and
0+@ 0 * * *

Please, see image.

Comment	File	Size	Author
	screen.png	10.29 KB	super_romeo

Support from Acquia helps fund testing for Drupal Acquia logo

Comments

Comment #1

super_romeo CreditAttribution: super_romeo commented 4 December 2014 at 12:31

Title:

Daily and Nightly cron jobs runs on every cron run

» Daily cron job runs twice a day

After update to 7.x-2.0-beta8 cron runs not every time, but "only" twice a day :)

2014-12-04 13:45:01
2014-12-04 13:05:00

2014-12-03 13:45:00
2014-12-03 13:00:11

2014-12-02 13:45:00
2014-12-02 12:58:01

and so on.
My cron runs every 15 min.

Comment #2

gielfeldt CreditAttribution: gielfeldt commented 16 December 2014 at 06:39

Hehe :-). That's odd. I'll look into it.

Comment #3

Anonymous (not verified) CreditAttribution: Anonymous commented 27 June 2016 at 10:26

I can't seem to get scheduled jobs to run according to the defined schedule either. For instance, one job is schedule as:

*/5+@ * * * *

& in the logs I have the last ten entires:

2016-06-27 04:19:59	00:00	anonymous (0)	
Launched in thread 1

2016-06-27 03:59:10	00:00	anonymous (0)	
Launched in thread 1

2016-06-27 03:45:18	00:00	anonymous (0)	
Launched in thread 1

2016-06-27 01:08:24	00:00	anonymous (0)	
Launched in thread 1

2016-06-26 11:56:24	00:00	anonymous (0)	
Launched in thread 1

2016-06-26 10:58:36	00:00	anonymous (0)	
Launched in thread 1

2016-06-26 10:52:43	00:00	anonymous (0)	
Launched in thread 1

2016-06-26 10:47:27	00:00	anonymous (0)	
Launched in thread 1

2016-06-26 10:46:08	00:00	anonymous (0)	
Launched in thread 1

2016-06-26 10:37:54                 anonymous (0)	
Launched in thread 1

It's just like this for all my Ultimate Cron jobs. There seems to be no correlation between the schedule & when jobs actually run.

Using crontab scheduler with catch up of 86400, serial launcher, 3600 job lock timeout, 1 maximum number of threads, run in any thread, no poorman's cron, with my system cron running the Drupal cron script once per minute.

It seems there are actually quite a few reports spread out across a number of issues going back several years relating to this scheduling issue.