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Re: Problem with the scheduler?


Also note that for example when setting up monthly jobs, the job with an
execution_date of  `2018-02-01` will be triggered soon after the wall clock
hits `2018-03-01`, and that your start_date for the tasks in the DAG need
to be prior to that execution_date, not the time at which you're expecting
the job to trigger.

Max

On Thu, May 24, 2018 at 9:23 AM Victor Noagbodji <
vnoagbodji@xxxxxxxxxxxxxxxxxx> wrote:

> Hi Stephane,
>
> First cron string does not look correct. It says the 2nd of each month.
> Check here: https://crontab.guru/#0_7_/2_*_*
>
> However second looks okay to me. It says 2(-31)/2, every second day from 2
> till 31. Maybe the first string needs 1/2?
>
> Also, check this SO (sorry) answer:
> https://unix.stackexchange.com/questions/16093/how-can-i-tell-cron-to-run-a-command-every-other-day-odd-even/16094
>
> On May 23, 2018, at 5:28 PM, Stephane Bonneaud <stephane@xxxxxxxxxxxxxxx
> <mailto:stephane@xxxxxxxxxxxxxxx>> wrote:
>
> Hi,
>
> I came about an issue with Airflow that I am wonder how to deal with it
> and thought I should reach out to see if you know about this issue and/or
> have advice on how to deal with it.
>
> I have around 6 or 7 DAGs on Airflow that are scheduled to run at
> different intervals. Two of them should run every other day and, for some
> reason, they stopped running at some point, apparently not at the same
> time. So, they were running properly every other day, but then, they just
> stopped being scheduled, possibly around the same time, though I suspect
> that one was not scheduled anymore before the other one. Also, it does not
> seem to happen with my other DAGs, which are scheduled to run mostly daily,
> or bi-monthly. So maybe it has something to do with my scheduling string?
>
> Here is the scheduling string for each of the DAGs: '0 7 */2 * *’ and '0 7
> 2/2 * *’
> This seems to be the proper CRON string.
>
> Have you seen that problem before?
> How would you go about debugging this or do you have any advice/pointers
> for me?
>
> Thank you very much for your time and help,
> Have a wonderful rest of the day,
>
> Best regards,
> Stéphane
>
> http://stephanebonneaud.com
> (401) 580-0817
>
>