I used crontab.guru to create a very simple CRON expression with the desired behavior to execute every day at 3:15 (AM) and this is the result: 15 3 * * *
Unfortunately for me, in Azure Portal this does not work, but if I add a leading 0
to my expression as such, 0 15 3 * * *
, Azure will accept it, while crontab.guru
will tell me it is wrong. The specification according to crontab.guru
is: minute hour date month weekday.
The questions..
Meaning of cron expression 0 * * * * *? I think it means the scheduler is expected to run every seconds.
Go to https://yourappservicename.scm.azurewebsites.net, then click Debug -> CMD or Powershell (go with Powershell), then navigate to site\wwroot\App_Data\jobs\{continuous/triggered}\job-name\ . Type touch settings. job to make the file. Then click the pencil icon to edit it right in Kudu.
For OnDemand CRON jobs, currently the way to stop the job is to temporarily remove the schedule from the settings. job file. Analogously, if you were using Azure Scheduler to invoke your job, the way to stop the job would be to stop the schedule in Azure Scheduler.
Have a look at the documentation:
The NCRONTAB expression is composed of 6 fields: {second} {minute} {hour} {day} {month} {day of the week}. A CRON expression has only 5, without the seconds.
So the first 0 describes the seconds.
* * * * * * command to be executed
┬ ┬ ┬ ┬ ┬ ┬
│ │ │ │ │ │
│ │ │ │ │ │
│ │ │ │ │ └───── day of week (0 - 7) (0 or 7 are Sunday, or use names)
│ │ │ │ └────────── month (1 - 12)
│ │ │ └─────────────── day of month (1 - 31)
│ | └──────────────────── hour (0 - 23)
│ └───────────────────────── min (0 - 59)
└────────────────────────────── second(0 - 59)
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